ADC/DAC
محصولات (3,100+)
AK4420ET - 24-Bit 192kHz Stereo DAC | AKM | Audio
Asahi Kasei Microdevices/AKM AK4420ET is a 24-bit stereo delta-sigma digital-to-analog converter with support for audio sampling rates up to 192 kHz, an integrated 2 Vrms output buffer, and a 16-pin TSSOP package. The converter operates from a 5 V supply and accepts I2S-format digital audio data. An audio DAC is a data converter that transforms digital PCM samples into an analog voltage suitable for amplification or line-level output. In the electronic-component hierarchy, the AK4420ET belongs to the DAC family, falls within data converters and audio ICs, and ultimately serves as a semiconductor interface between digital audio systems and analog audio signal chains. The AK4420ET's headline features include 24-bit resolution, operation up to 192 kHz, two audio output channels, and a 2 Vrms output stage. Its integrated output buffer uses a charge pump to develop an internal negative supply rail, supporting a ground-referenced 2 Vrms output. This architecture reduces the external component count compared with a converter that requires discrete output buffering. AKM's multibit modulator architecture is the basis of the conversion engine. The digital input and analog output sections are combined in a compact package intended for high-resolution audio equipment. The available operating details establish the core signal format, supply requirement, channel count, output level, and package dimensions, while other electrical limits should be confirmed against the manufacturer datasheet before final circuit sign-off. Typical uses include CD and DVD player digital-to-analog stages, active speaker crossover networks, professional audio equipment, home theater receivers, and other consumer audio products. The 192 kHz capability is useful for high-resolution source material, while the integrated stereo buffer simplifies analog output implementation when the required signal level is close to 2 Vrms. The main design consideration is analog integration. Keep the digital interface traces compact, provide a stable low-noise 5 V supply, and follow the datasheet's grounding and decoupling layout. The output stage and charge pump can influence power-supply and analog-output behavior, so component placement should preserve short return paths and minimize coupling from switching circuitry into the audio output.
AK4430ET - 24-Bit 192kHz Stereo DAC | Asahi Kasei
Asahi Kasei Microdevices AK4430ET is a 3.3 V, 24-bit stereo delta-sigma DAC supporting I2S audio data at up to 192 ksps. The device provides two voltage outputs through an integrated 2 Vrms output buffer and is packaged in a 16-pin TSSOP surface-mount package. Its buffer includes a charge pump that develops an internal negative supply rail, allowing a ground-referenced 2 Vrms stereo output. An audio DAC is a signal-conversion component that accepts digital audio samples and converts them into continuous analog voltages for amplifiers, headphones, powered speakers, or line-level equipment. The AK4430ET belongs to the delta-sigma DAC, audio DAC, digital-to-analog converter, and integrated audio-converter hierarchy. It combines a digital audio interface, a multi-bit modulator-based conversion stage, and analog output buffering within one device. Principal features include 24-bit resolution, a maximum conversion rate of 192 ksps, two DAC channels, bipolar voltage output, and a 3.3 V single-supply operating range of 3 V to 3.6 V. The integrated output buffer supports a 2 Vrms signal level, reducing the need for a separate output-amplifier stage in many conventional line-output designs. A typical signal-to-noise ratio of 104 dB is listed for the device. The multi-bit modulator architecture is intended to preserve linearity and improve total harmonic distortion plus noise performance. A charge pump in the output-buffer section generates the negative internal rail required for ground-referenced output. This architecture allows the converter to produce bipolar analog signals from a single positive supply while maintaining a compact 16-pin TSSOP footprint measuring approximately 4.4 mm by 5 mm. Typical uses include digital audio players, compact hi-fi stereo systems, USB or network audio conversion, multichannel home-audio equipment, and powered-speaker input stages. The I2S interface makes the converter suitable for systems in which a digital audio processor or receiver supplies serialized stereo samples. The integrated buffer is particularly useful where component count, analog-output level, and board area are important design priorities. A critical design consideration is the relationship between the 3 V to 3.6 V supply range, the selected output level, and the downstream amplifier input range. Designers should follow the manufacturer datasheet for pin assignments, supported audio formats, clock requirements, digital-interface voltages, and recommended decoupling. The component must be treated as an obsolete part, so new production designs should normally require an availability and lifecycle review before schematic release. This page organizes the AK4430ET specifications, obsolete-product status, package information, application guidance, comparison framework, and sourcing workflow into one engineering-focused reference. It also identifies the absence of a verified drop-in substitute rather than presenting functionally similar converters as PCB-compatible replacements.
AK4432VT - 32-Bit 192kHz Stereo Audio DAC | Asahi Kasei
Asahi Kasei Microdevices AK4432VT is a 32-bit, two-channel advanced audio digital-to-analog converter with operation up to 192 kHz, 108 dB dynamic range, and a 16-pin TSSOP package. The AK4432VT accepts digital audio through an I2S interface and provides single-ended SCF outputs for high-end audio systems. Its operating voltage is 3.0 V to 3.6 V, while its specified operating temperature range extends from -40°C to 105°C. An audio DAC is a converter that transforms digital audio samples into analog voltage signals suitable for headphone amplifiers, line outputs, speakers, and other audio stages. Within the signal-chain hierarchy, the AK4432VT is an audio DAC, a digital-to-analog converter, an interface IC, and ultimately a semiconductor. It sits between a digital audio source and an analog output stage, where accurate conversion and low-noise analog output are central to sound quality. Key features include 32-bit resolution, support for sampling rates up to 192 kHz, 108 dB dynamic range, and two-channel operation. The manufacturer describes the converter as using AKM's VELVET SOUND architecture and a newly developed 32-bit digital filter designed to provide short group delay. Single-ended SCF outputs are intended to improve performance in systems where clock jitter would otherwise degrade conversion quality. The AK4432VT operates from a 3.0 V to 3.6 V supply, covering both its analog and digital operating requirements. The supplied manufacturer information identifies the device as an advanced audio DAC with two channels and I2S data input. Its 16-TSSOP surface-mount package supports compact digital audio products while providing separate digital and analog supply connections for careful PCB partitioning. Typical applications include high-end CD and network audio players, digital music systems, home-theater audio equipment, professional monitoring products, and other stereo DAC designs requiring 192 kHz support. In each case, the AK4432VT converts incoming I2S data into analog signals that can be passed to an output amplifier, analog volume-control stage, or line-level driver. A critical design consideration is maintaining a low-jitter digital clock source and separating analog and digital return paths appropriately. Power and ground routing should follow the manufacturer datasheet's recommended application circuit, while output-stage and filtering choices must preserve the converter's intended signal integrity. Exact pin assignments and external component values must be taken from the manufacturer datasheet rather than inferred from the package outline. This product record combines verified manufacturer specifications, distributor availability, package information, pricing, application guidance, and a drop-in replacement assessment. It distinguishes documented AK4432VT-E2 compatibility from unverified functional alternatives and identifies all unavailable electrical details explicitly instead of estimating them.
AK4436VN - 6-Channel 32-Bit Audio DAC | Asahi Kasei Microdevices
The Asahi Kasei Microdevices AK4436VN is a 6-channel, 32-bit audio digital-to-analog converter with a signal-to-noise ratio of 108 dB, support for PCM sampling rates up to 768 kHz, and single-ended SCF outputs in a 32-pin QFN package measuring 5 mm × 5 mm. It is designed for high-resolution multichannel audio systems where accurate digital-to-analog conversion, high dynamic range, and compact board area are important. An audio DAC is a digital-to-analog converter, one member of the broader data-converter IC and signal-conversion hierarchy. It receives digital audio samples from a host or audio interface, reconstructs an analog waveform through internal digital filtering and conversion circuitry, and produces line-level analog outputs for amplifiers, speakers, headphones, or line-input equipment. In a signal chain, it sits between digital audio processing and analog amplification, where its clock behavior, channel count, noise level, and output architecture influence playback quality. The AK4436VN converts six digital channels at up to 32-bit resolution. Its 108 dB signal-to-noise ratio provides a high dynamic range for network-audio, USB-DAC, home-theater, and automotive surround systems. PCM input support extends to 768 kHz, while the manufacturer highlights its newly developed 32-bit digital filter for short group delay. The converter also uses single-ended SCF outputs, a topology intended to improve performance in systems affected by excessive clock jitter. AK4436VN supports I2S digital audio and is described as an advanced audio DAC with six output channels. Its 32-pin QFN construction consolidates a high channel count into a compact surface-mount footprint. The operating principle combines digital filtering, a 32-bit conversion core, and analog output stages so that the digital source can be reproduced with high resolution and low system-level noise. Exact supply ranges, output voltage, clock requirements, and package dimensions should be confirmed in the manufacturer datasheet before schematic release. Typical applications include multichannel home-theater receivers, car-audio surround systems, network-audio players, and USB-DAC products. Six single-ended outputs allow a board to support a complete surround channel set without requiring six separate converter packages, reducing component count and simplifying digital clock distribution. The short-group-delay digital filter can also benefit applications where the audio path must preserve timing and transient detail. For PCB implementation, place the DAC close to its audio output network and maintain short, symmetric routes for each channel. Decoupling capacitors should be positioned at the supply and ground pins according to the manufacturer reference layout. Keep the exposed thermal pad electrically and thermally connected as specified, and route clocks away from sensitive analog output nodes to minimize coupling between digital activity and reconstructed audio. This page consolidates the manufacturer's architectural claims, confirmed product characteristics, application fit, and engineering-oriented design guidance. It also identifies where pin-level, supply, and electrical details must be checked in the official datasheet, helping designers evaluate the AK4436VN before committing it to a multichannel audio architecture.
AK4438VN - 8-Channel 32-Bit 768kHz Audio DAC | Asahi Kasei
The Asahi Kasei Microdevices AK4438VN is an 8-channel, 32-bit audio digital-to-analog converter supporting PCM input rates up to 768 kHz, with a dynamic range of 108 dB, in a 32-pin 5 x 5 mm QFN package with an exposed pad. It accepts I2S digital audio and provides eight single-ended SCF analog outputs, making it suitable for high-resolution multichannel audio systems. An audio DAC is a data-converter IC within the broader digital-to-analog converter, converter IC, signal-conversion, and semiconductor hierarchies. It reconstructs continuous analog audio signals from sampled digital data. The AK4438VN targets applications requiring multiple synchronized output channels, high-resolution playback, and accurate reconstruction of network-audio, USB-DAC, automotive, and home-audio content. Principal features include 32-bit resolution, eight output channels, operation up to 768 kHz, and a 108 dB dynamic range. The newly developed 32-bit digital filter is specified for short group delay, which helps the converter reproduce high-resolution source material with reduced temporal smearing. Single-ended SCF outputs are intended to improve performance in systems where excessive clock jitter would otherwise degrade audio performance. The AK4438VN accepts digital audio through an I2S-compatible interface and converts it into eight analog channels. Its dual-rate architecture supports conventional high-resolution audio while extending operation to 768 kHz PCM input rates. The exposed-pad QFN construction provides a thermal and electrical connection between the device and PCB copper, allowing heat to leave the package more effectively when the converter operates continuously at elevated power. Typical uses include multichannel network-audio receivers, USB-DAC platforms, automotive infotainment systems, home-cinema equipment, digital mixing consoles, and multi-zone listening systems. Its eight outputs reduce the need for multiple discrete single-channel converters when several synchronized analog channels are required. The part can also serve evaluation and prototyping platforms for high-sample-rate PCM playback. Designers must provide stable analog and digital supplies, route return currents carefully, and treat the exposed pad as a thermal and ground connection rather than an unused lead. Clock source quality and layout symmetry are important because converter performance can be degraded by supply noise, ground offsets, or data-line timing errors. Decoupling should follow the manufacturer datasheet recommendations closely. This page consolidates the verified AK4438VN specifications, manufacturer and distributor sources, packaging details, application guidance, and a drop-in-alternative verification record. It also distinguishes verified replacement data from unverified generic cross-reference results, helping engineers avoid assuming that similar converter functions guarantee pin compatibility.
AK4440EF - 8-Channel 24-Bit 192kHz DAC | Asahi Kasei
Asahi Kasei Microdevices AK4440EF is a high-performance 8-channel audio digital-to-analog converter operating from a 5 V supply and supporting 24-bit audio at up to 192 kHz. Each channel includes an integrated output buffer capable of delivering a ground-referenced 2 Vrms signal. The device is packaged in a 30-VSOP and uses an I2S-compatible digital audio interface. Its multi-bit modulator architecture is designed to preserve linearity while delivering a wide dynamic range and improved total harmonic distortion plus noise performance. An audio DAC is a data converter that transforms digital audio samples into an analog voltage or current. The AK4440EF belongs to the digital-to-analog converter, audio data converter, signal-conversion IC, and power-management-aware semiconductor hierarchy. Unlike a basic resistor-network or delta-sigma converter, this device combines an eight-channel architecture, high-resolution operation, integrated analog output buffers, and a charge-pump-assisted output stage in one package. The AK4440EF accepts 24-bit digital audio data and supports sampling rates up to 192 kHz. Its integrated output buffer generates a 2 Vrms full-scale output referenced to ground. The charge pump develops an internal negative supply rail, allowing the output stage to swing below ground without requiring a negative external analog supply. This architecture is useful in multichannel audio systems where eight balanced or unbalanced analog outputs are required. AKM's multi-bit modulator architecture is the primary technical feature distinguishing this converter from many conventional delta-sigma implementations. The manufacturer describes the architecture as combining wide dynamic range with preserved linearity and improved THD+N performance. Because the analog outputs are integrated, the system designer does not need eight separate output-buffer ICs, reducing circuit area while maintaining consistent channel drive capability. Typical applications include multichannel professional audio equipment, high-end consumer audio systems, AV receivers, digital mixing consoles, surround-sound processors, and audio interface hardware. A 192 kHz sampling capability supports high-resolution playback, while the eight-channel organization is suitable for cinema, music-production, and multi-zone audio architectures. The I2S interface allows the converter to operate directly with compatible digital audio processors. The main design consideration is analog-output implementation. The 2 Vrms capability must be checked against downstream amplifier gain, headphone-driver limits, line-level input ranges, and coupling or filtering requirements. Layout should preserve short, symmetric analog output paths, provide a quiet supply network, and avoid routing digital clock and data signals beneath sensitive analog outputs. Grounding and return paths should follow the manufacturer's recommended application circuit. This product summary combines the verified manufacturer datasheet, package and interface information, architectural details, application analysis, and engineering selection guidance. It also distinguishes confirmed characteristics from specifications that must be confirmed in the datasheet before a precision design is released.
AK4452VN - 32-Bit 2ch Premium Audio DAC | AKM
The Asahi Kasei Microdevices AK4452VN is a 32-bit 2-channel premium audio DAC supporting up to 768 kHz PCM and 11.2 MHz DSD input in a 32-QFN 5x5 mm package. It uses AKM's VELVET SOUND architecture with 8-channel digital filter processing and is designed for high-resolution audio sources used in network audio, USB-DAC, and car audio systems. An audio DAC converts digital PCM or DSD streams into an analog voltage suitable for amplification, loudspeakers, headphones, or audio analog-to-digital converters. The AK4452VN belongs to the digital-to-analog converter hierarchy within signal-chain and mixed-signal semiconductor devices. Its premium positioning is intended to preserve fine signal detail while supporting modern high-resolution playback formats. The verified product information identifies a 32-bit resolution, two-channel architecture, 115 dB dynamic-range figure, 768 kHz maximum PCM input rate, 11.2 MHz maximum DSD input rate, and I2S digital audio input. The 32-QFN 5x5 mm package supports compact implementation in premium audio equipment. These features position the device for hi-fi playback, professional monitoring, network streamers, and automotive infotainment systems. The AK4452VN uses eight channels of AKM's VELVET SOUND architecture and 32-bit digital filter processing. The manufacturer describes this combination as an implementation of low-distortion technology intended to improve sound detail and channel consistency. The digital interface supports both high-rate PCM and direct-stream digital sources, allowing one converter to cover conventional CD-rate audio as well as modern high-resolution PCM and DSD material. Typical applications include network audio players, USB-DAC products, car audio systems, premium home-theater equipment, digital mixers, and studio monitoring. In each case, the converter can accept high-resolution digital sources while presenting an analog output to the downstream amplifier or analog signal-chain stage. The component's two-channel organization is especially appropriate for stereo audio rather than multichannel cinema decoding. Designers should evaluate the analog output implementation, supported digital formats, clocking requirements, grounding, and power-supply arrangement against the complete datasheet before layout. The verified data does not specify output topology, reference voltage, supply rails, or detailed decoupling values, so those implementation details must not be inferred from the distributor summary alone. This page consolidates the verified manufacturer and distributor information, distinguishes confirmed capabilities from unavailable specifications, and highlights the need for a complete datasheet review. It also records the absence of verified cross-brand drop-in equivalents instead of presenting functional substitutes as true pin-compatible replacements.
AK4454VN - Stereo Audio DAC | Asahi Kasei Microdevices
The AK4454VN from Asahi Kasei Microdevices is a stereo audio digital-to-analog converter in a 32-pin LQFP package. The supplied verification record identifies the exact MPN as AK4454VN, but the associated web-search request timed out before returning a manufacturer datasheet, distributor listing, or parameter table. Consequently, verified electrical values, pricing, package dimensions, and lifecycle details are not presented as confirmed facts on this page. An audio DAC is a mixed-signal semiconductor that converts digital PCM or similar audio data into analog voltage signals suitable for audio amplification, headphone drive, or line-level output. In the signal chain, a DAC follows digital audio processing and precedes an analog output amplifier. Its engineering evaluation therefore includes resolution, supported sampling rates, channel architecture, clock requirements, digital interface format, analog output characteristics, and reconstruction-filter performance. The AK4454VN belongs to the digital-to-analog converter category, which is part of the broader audio and mixed-signal semiconductor hierarchy. A key product-family feature is the AK4454 designation within the Asahi Kasei Microdevices audio portfolio. The VN orderable identifier is associated here with a 32-pin LQFP package, allowing an engineer to begin footprint planning before consulting the final manufacturer documentation. The most important verified feature available in the supplied record is the package class rather than an electrical performance value. The 32-pin LQFP provides a fine-pitch surface-mount footprint and exposes the device's digital, analog, clock, power, and configuration connections through perimeter leads. Because the actual pin names and electrical limits were not returned by the timed-out retrieval, this record does not infer individual pin functions or substitute values from a related device. Typical design roles for a stereo audio DAC include digital-audio playback, compact digital-to-analog conversion, audio source equipment, and conversion ahead of an external amplifier. Whether the AK4454VN is appropriate for a specific design still requires confirmation of its verified sample-rate support, digital input format, master-clock requirements, analog output topology, supply limits, and package dimensions. Before layout or procurement, download the manufacturer datasheet for the exact AK4454VN orderable code and confirm its pinout, recommended decoupling, exposed thermal requirements, soldering profile, operating-temperature limits, and lifecycle status. Designers should also verify clock and ground arrangements against the manufacturer's reference application circuit rather than assuming compatibility with another AK4454-family device. This page transparently separates verified identity and packaging information from unavailable parameters. It also records that the 2026-10-29 price search and drop-in cross-reference search returned no results, preventing unverified specifications, prices, stock claims, and substitute parts from being presented as engineering data.
AK4456VN - 32-Bit 6-Channel 768 kHz Audio DAC | AKM
The Asahi Kasei Microdevices AK4456VN is a premium 32-bit, six-channel digital-to-analog converter with support for up to 768 kHz PCM input and 11.2 MHz DSD input, housed in a 48-QFN (7 x 7 mm) package. It uses AKM's VELVET SOUND architecture, combining low-distortion conversion with 32-bit digital filtering for high-resolution audio systems. An audio digital-to-analog converter, or audio DAC, converts digital PCM or DSD data into analog voltage signals suitable for amplification and loudspeaker reproduction. Within the semiconductor hierarchy, an audio DAC is a specialized data-converter IC and a member of the broader ADC/DAC category. It sits at the interface between a digital audio source and an analog signal chain, where its noise, distortion, channel count, and supported input formats materially affect playback quality. The AK4456VN provides six DAC channels, 32-bit resolution, a maximum PCM sampling rate of 768 kHz, and DSD support up to 11.2 MHz. Verified product information identifies a dynamic-range figure of 115 dB and describes the device as a premium multichannel DAC. These capabilities suit component audio equipment, network players, USB DACs, automotive audio systems, and other installations requiring several synchronized high-resolution outputs. Its VELVET SOUND architecture is intended to reduce distortion while preserving fine signal details. The 32-bit digital filtering path supports modern high-resolution source formats, while the six-channel architecture allows one converter to serve multichannel playback without requiring six discrete DAC packages. DSD compatibility broadens format support, although the complete system must also provide compatible source, clocking, filtering, and output-stage circuitry. Typical implementations place the AK4456VN after an audio receiver or digital interface and before balanced or single-ended analog amplifier stages. Because this is a high-performance analog output device, clean grounding, low-noise supplies, controlled clock routing, and symmetrical analog layout are essential. Differential output routing and appropriately shielded connections can help preserve the benefit of the converter's low-distortion architecture. The main design trade-off is that performance depends on system-level implementation rather than the DAC alone. Power, ground, digital-interface isolation, output load, and clock jitter can affect the final audio result. Designers should follow the manufacturer's datasheet for the exact 48-QFN pin assignments, supported digital formats, external-component recommendations, and application circuit. This page consolidates verified manufacturer and distributor information, purchase guidance, practical implementation notes, and a strict compatibility review of potential substitutes. It distinguishes a same-series ordering option from functional alternatives that do not provide a verified pin-to-pin replacement path.
AK4458VN - 32-Bit 8-Channel 768kHz DAC | AKM
The Asahi Kasei Microdevices AK4458VN is a premium 32-bit, eight-channel digital-to-analog converter supporting PCM input rates up to 768 kHz and DSD input up to 11.2 MHz. It uses eight output channels, an I2S digital audio interface, and a 48-pin QFN package with an exposed pad. The device also provides 115 dB dynamic range according to the verified manufacturer product data, making it suitable for high-resolution multichannel audio systems. An audio DAC is a mixed-signal integrated circuit that converts digital PCM or DSD audio samples into analog voltage signals suitable for amplifiers and speakers. The AK4458VN belongs to the ADC/DAC hierarchy and combines a digital audio interface, digital signal processing, and eight analog output channels in one device. Its eight-channel architecture supports multichannel playback without requiring eight separate converter packages, while separate analog output stages provide flexibility for balanced or unbalanced signal routing. Key features include 32-bit digital resolution, eight DAC channels, operation up to 768 kHz PCM, and support for 11.2 MHz DSD. The verified manufacturer data identifies AKM's VELVET SOUND architecture as the basis for the converter's low-distortion performance. The digital input supports I2S, and the device is intended for network-audio players, USB-DAC platforms, professional audio equipment, and automotive audio systems. The AK4458VN combines a high-resolution digital processing section with eight analog output channels. This integration reduces the component count and board complexity of an eight-channel design while preserving independent conversion for every output. The 48-QFN package provides a compact implementation, but its exposed thermal pad requires careful PCB layout and adequate copper area for heat dissipation. Typical uses include high-resolution network players, USB audio converters, home-theater receivers, multichannel preamplifiers, automotive infotainment systems, and studio monitoring equipment. In each case, the device can accept high-rate digital audio and generate eight analog channels while reducing the need for duplicated converter circuitry. Designers should pay particular attention to analog and digital grounding, power-supply decoupling, exposed-pad soldering, and the datasheet-recommended output-stage network. The converter's package footprint does not by itself guarantee drop-in compatibility with another DAC: clocking, digital interface, analog topology, control registers, and pin functions must all be verified before substitution. This product summary combines manufacturer specifications, distributor availability, package information, and application-focused engineering guidance to provide more practical procurement and design context than a basic manufacturer datasheet alone.
AK4462VN - 32-Bit 2-Channel High-Resolution DAC | AKM
Asahi Kasei Microdevices AK4462VN is a 32-bit, 2-channel premium audio digital-to-analog converter with a 117 dB dynamic range, 768 kHz PCM input capability, DSD512 support, and DoP256 support in a 24-QFN 4 x 4 mm package. The device uses AKM VELVET SOUND technology and is intended for high-resolution audio equipment requiring a combination of wide dynamic range, high sampling-rate support, and compact integration. An audio DAC is a semiconductor that converts digital PCM, DSD, or DoP audio data into continuous analog voltage signals suitable for an audio amplifier and loudspeaker system. Within the broader hierarchy, a DAC is an audio data-converter IC and a member of the ADC/DAC converter category. The AK4462VN specifically occupies the two-channel premium-audio segment, where low-level signal integrity and support for studio-mastering formats are important design considerations. The verified device data identifies a 32-bit architecture, two audio channels, 117 dB dynamic range, a maximum PCM input rate of 768 kHz, DSD512 input, and DoP256 input. Its operating supply range is 1.7 V to 5.5 V. These capabilities make the converter suitable for network audio players, USB DACs, digital audio workstations, premium home-audio systems, automotive audio equipment, and other applications that receive high-resolution digital audio streams. The AK4462 architecture includes AKM VELVET SOUND technology and OSR-Doubler technology. The latter is identified in the manufacturer material as part of the AK4462 implementation. The converter supports substantially higher source rates than a conventional CD-rate audio DAC, but a complete system still requires a matched digital interface, a suitable low-noise analog output network, correct clocking, and an output amplifier whose distortion and noise remain below the DAC’s own output limits. Typical deployment places the AK4462VN downstream of an audio interface that receives PCM or DSD data. The converter then generates left- and right-channel analog outputs for a balanced or unbalanced audio amplifier stage. In a USB DAC, the digital source may originate from a host operating system; in a network player, it may come through a high-resolution streaming transport. In either case, clock jitter, ground return paths, output filtering, and power-supply noise can materially affect the reproduced result. A critical design consideration is that high-resolution capability alone does not guarantee high-fidelity playback. The converter must be paired with an appropriate analog filter, balanced routing where supported by the surrounding circuit, stable reference and clock arrangements, and a power supply whose noise is sufficiently below the output signal. Board layout should preserve the separation between digital inputs and sensitive analog outputs while providing a low-impedance return for each supply domain. This product page consolidates the verified manufacturer and distributor information for the AK4462VN with sourcing details, application guidance, technical limitations, and package information. It distinguishes documented facts from parameters that still require confirmation in the complete manufacturer datasheet, helping engineers evaluate the converter without implying that unsupported pin, clock, output, or compliance details are guaranteed.
AK4468VN - 32-Bit 8-Channel DAC | AKM | Premium Audio
Asahi Kasei Microdevices AK4468VN is a premium 32-bit, eight-channel digital-to-analog converter designed for high-resolution audio systems. The device supports PCM input rates up to 768 kHz and DSD input up to DSD512, and is described as a 117 dB premium DAC. It uses VELVET SOUND technology and OSR-Doubler technology, making it suitable for network-audio players, USB DACs, car-audio systems, home-theater equipment, and professional audio products. The AK4468VN is supplied in a 48-QFN 7 mm by 7 mm package with an exposed pad. An eight-channel DAC is a semiconductor that converts eight digital audio streams into eight analog output signals. This class of converter belongs to the broader digital-to-analog converter hierarchy, audio integrated circuits, signal-conversion semiconductors, and broader semiconductor categories. Eight-channel conversion is especially useful in surround-sound receivers, multi-zone audio equipment, automotive sound systems, and USB or network-audio playback products where several synchronized analog channels are required. The AK4468VN provides 32-bit digital audio processing, 768 kHz maximum PCM input, and DSD512 input support as highlighted in the manufacturer documentation. Its eight-channel architecture reduces the need for multiple discrete DAC packages in multichannel equipment. The 117 dB dynamic-range figure identifies it as a premium converter rather than a basic consumer-audio DAC, while VELVET SOUND technology is the manufacturer’s stated approach to sound-quality implementation. OSR-Doubler technology is another stated feature of the AK4468VN. The supplied datasheet description indicates that this technology is adopted in the AK4468 family, although detailed filter characteristics and implementation conditions should be confirmed in the manufacturer datasheet. The 48-VFQFN exposed-pad package supports compact high-channel-count PCB layouts, but the exposed pad requires careful thermal and electrical layout according to the datasheet land pattern and recommended design guidance. The AK4468VN is suitable for network-audio playback, USB DAC platforms, car-audio systems, home-theater receivers, and other multichannel audio products. A design must provide compatible digital audio data, appropriate master-clock and timing signals, analog output filtering, stable analog and digital supplies, and a layout that minimizes noise coupling into sensitive signal paths. The 3 V to 5.5 V supply range listed in the retrieved technical data supports conventional mixed-signal audio-system rails. A critical design consideration is that the exposed thermal pad must be connected according to the datasheet instructions and surrounded by an appropriate ground-plane structure. Differential clock routing, controlled return paths, and separation from switching converters can help preserve the benefit implied by the device’s 117 dB dynamic-range specification. Exact pin names, clock requirements, output modes, filter settings, and recommended external component values must be taken directly from the manufacturer datasheet rather than inferred. This page consolidates the verified manufacturer and distributor information for AK4468VN, including high-resolution audio capabilities, package details, sourcing data, application guidance, and the limitations of the available substitute search. It also distinguishes confirmed drop-in alternatives from merely similar DAC devices so engineers do not mistake a different package or architecture for a PCB-compatible replacement.
AK4480EF - 32-Bit 216kHz 114dB Audio DAC | AKM
The Asahi Kasei Microdevices AK4480EF is a 32-bit high-performance digital-to-analog converter for premium audio equipment, supporting I2S digital audio and DSD playback up to 216 kHz. It achieves 114 dB dynamic range and is packaged in a 30-pin VSOP with a 0.65 mm pitch. The AK4480EF is designed for applications requiring high-resolution audio conversion, broad output dynamic range, and a dedicated digital-to-analog output stage. An audio DAC is a data converter that transforms digital audio samples into proportional analog voltages or currents. Within the signal-chain hierarchy, a DAC sits between a digital source, such as a Blu-ray Disc player, music server, or network audio streamer, and an analog amplifier or loudspeaker system. The AK4480EF uses a 32-bit digital filter within its conversion architecture, combining high sample-rate support with low-distortion output characteristics. The device's 32-bit resolution accommodates high-resolution PCM content, while its 216 kHz DSD capability supports the highest-rate audio formats associated with modern source components. A 114 dB dynamic range provides ample headroom between low-level musical passages and full-scale program material. Its I2S interface allows digital audio data and clock signals to connect directly to an appropriate digital audio source or digital-to-analog conversion stage. AK4480EF is supplied in a compact 30-pin VSOP package with 0.65 mm pitch. This high-density surface-mount construction supports compact digital audio products while requiring careful PCB layout, short clock and data routes, and stable grounding. The commercial-grade component is specified for operation from -10 °C to +70 °C, making it appropriate for indoor consumer and professional audio equipment operating within that environmental range. Typical uses include Blu-ray Disc player output stages, high-resolution network streamers, USB-audio interfaces, digital mixers, surround-sound processors, and premium headphone amplifiers. It is especially relevant where a system must accept high-rate I2S audio and preserve a wide dynamic range before the signal reaches the analog power-amplifier stage. System designers should also account for the external analog reconstruction and output circuitry surrounding the converter. For implementation, follow the manufacturer datasheet for pin assignment, analog-output configuration, digital-interface timing, power sequencing, and supported sampling modes. Keep digital input and clock traces short, provide a clean return path, decouple the supply pins near the device, and evaluate the analog output network for the intended amplifier input. These measures help preserve the converter's low-noise and low-distortion performance. This product page combines the AK4480EF's core digital-audio specifications, package characteristics, operating limits, application guidance, design considerations, and comparison context. It also distinguishes exact-footprint replacement decisions from broader functional DAC choices, helping engineers evaluate the converter for both technical fit and board-level integration.
AK4482VT - 24-Bit 216kHz Stereo Audio DAC | Asahi Kasei
The Asahi Kasei Microdevices AK4482VT is a 24-bit, two-channel audio digital-to-analog converter for digital audio equipment. It supports sampling rates up to 216 kHz, operates from a 5 V supply, and provides fully differential switched-capacitor outputs in a 16-pin TSSOP package. The device is designed for applications requiring a compact, low-noise stereo audio output stage. An audio DAC is a converter that transforms digital PCM or I2S audio data into analog voltage signals suitable for amplifiers, headphones, speakers, and line-level equipment. Within the signal-chain hierarchy, it belongs to the digital-to-analog converter class, supports the ADC/DAC product category, and operates as an audio interface IC within a broader semiconductor system. The AK4482 uses AKM's multi-bit modulator architecture to provide wide dynamic range. The manufacturer datasheet identifies a dynamic range of 111 dB, 24-bit resolution, two audio channels, and support for sampling rates up to 216 kHz. Its switched-capacitor outputs are fully differential, eliminating the need for output AC-coupling capacitors while helping maintain performance in systems experiencing excessive clock jitter. The AK4482VT accepts digital audio through an I2S interface and converts each channel into a balanced analog output. This architecture is appropriate for digital audio sources that already perform format conversion, sample-rate conversion, volume control, or signal routing before the DAC stage. The converter separates digital processing from the analog output path, allowing the analog section to be optimized for low distortion and channel symmetry. Typical uses include premium digital audio equipment, professional audio interfaces, consumer hi-fi systems, game-console audio equipment, network-audio players, and digital recording equipment. The 16-pin TSSOP package makes the part suitable for compact boards, while the two-channel architecture reduces component count compared with implementing separate single-channel converters. Power-supply layout, grounding, clock quality, and output-stage loading directly affect converter performance. Place input, output, and reference-related bypass connections according to the manufacturer application guidance, keep analog and digital return currents separated where practical, and terminate unused inputs according to the datasheet. The differential outputs should be paired with a suitable reconstruction and line-output network for the intended load. This product record combines the exact AK4482VT specifications, sourcing guidance, application analysis, and engineering cautions with a strict review of same-footprint replacements. It distinguishes documented electrical characteristics from parameters that require confirmation in the manufacturer datasheet, helping engineers assess fit before committing to a layout or production release.
AK4490EQ - 32-Bit 768kHz 2-Channel Audio DAC | AKM
The Asahi Kasei Microdevices AK4490EQ is a premium 32-bit, 2-channel audio digital-to-analog converter supporting sampling rates up to 768 kHz and DSD playback in a 48-LQFP (7 mm × 7 mm) package. It provides differential analog outputs, five programmable 32-bit digital filters with group delay as low as 5.3/fs, and a dynamic range of 120 dB according to the manufacturer datasheet. An audio DAC is a signal-conversion integrated circuit that transforms digital PCM or DSD audio data into an analog voltage suitable for amplifiers, preamplifiers, headphones, and powered speakers. Within the broader semiconductor hierarchy, the AK4490EQ is a delta-sigma DAC, an audio data-converter IC, and a member of the power-management-adjacent signal-chain ecosystem. Its dual-channel architecture supports balanced stereo output while preserving very low distortion and wide dynamic range. The AK4490EQ includes the OSR Doubler switched-capacitor filter, allowing operation across a broad range of source signals while reducing out-of-band noise and supporting a low-power design. Its five selectable digital filters provide different combinations of noise shaping, attenuation, and group delay. Differential outputs help reject common-mode noise when implemented with a balanced analog output network. The 768 kHz PCM and DSD capabilities make the device suitable for high-resolution playback systems. Its digital and analog core supply range is 3.0 V to 3.6 V, while the stated analog supply range is 4.75 V to 7.2 V. Separate digital and analog rails reduce the likelihood that converter activity and switching noise will contaminate the analog output stage. Exact performance depends strongly on the external clock, reconstruction-filter implementation, analog supply quality, reference arrangement, PCB grounding, and output-stage design. Typical applications include network music players, USB and I2S audio interfaces, high-resolution headphone DACs, digital preamplifiers, professional studio monitors, and premium home-audio streamers. Its 2-channel architecture suits stereo rather than multichannel surround conversion. Engineers evaluating it for multichannel systems should verify the available channels, digital interface format, clocking requirements, and supported sampling mode against their system requirements. The most important design consideration is the analog supply and output stage. Use low-noise, low-impedance rails, place decoupling capacitors close to the supply pins, keep the analog and digital return currents separated where practical, and follow the manufacturer layout guidance. Because the AK4490EQ is reported as discontinued, new production designs should also evaluate the manufacturer-recommended AK4490REQ transition part after confirming its electrical and pin compatibility. This page consolidates verified distributor availability, the manufacturer datasheet, transition information, and application-specific engineering guidance. It distinguishes verified facts from unspecified parameters and avoids presenting unverified replacement parts as drop-in alternatives.
AK4493EQ - 32-Bit 2-Ch DAC, 768 kHz | Asahi Kasei
The Asahi Kasei Microdevices AK4493EQ is a Premium 32-bit, two-channel digital-to-analog converter with VELVET SOUND technology, support for audio data up to 768 kHz, and a 48-pin LQFP package measuring 7 x 7 mm. The converter is designed for high-fidelity audio equipment that requires low distortion, wide dynamic range, and low out-of-band noise. A digital-to-analog converter, or DAC, converts digital PCM or DSD audio data into an analog voltage that can drive an audio amplifier. In the semiconductor hierarchy, the AK4493EQ is an audio data-converter IC, a specialized form of mixed-signal semiconductor, and ultimately part of a signal-conversion chain that includes an audio source, digital interface, DAC, analog output stage, and loudspeaker or headphone system. Its two-channel architecture supports balanced or appropriately configured single-ended audio-design implementations. Key verified features include 32-bit resolution, two-channel operation, 768 kHz PCM playback support, VELVET SOUND technology, and an OSR Doubler switched-capacitor filter. The OSR Doubler is intended to support a wide range of signal conditions while reducing out-of-band noise. The device also accommodates DSD input, making it relevant to source components that decode high-resolution digital audio streams. The AK4493EQ combines a high-resolution conversion engine with Asahi Kasei Microdevices' VELVET SOUND architecture. Its advertised performance emphasizes low distortion and wide dynamic range rather than merely resolution. At 768 kHz and 32 bits, the device addresses demanding PCM applications, while its DSD capability supports native high-rate DSD audio systems. The exact threshold, digital-interface modes, analog output topology, and operating conditions must be confirmed in the manufacturer datasheet before final circuit design. Typical uses include premium standalone DACs, network music players, digital audio workstations, home-theater audio processors, professional monitoring equipment, and high-resolution headphone amplifiers. The device is most appropriate when the system can preserve the benefit of a 32-bit conversion path from digital transport through the analog output stage. A critical design requirement is preserving analog signal integrity after conversion. Short, symmetrical routing, suitable output-network components, adequate supply decoupling, and grounding that avoids shared high-current return paths can prevent the converter's low-distortion performance from being degraded by the surrounding PCB. This product record combines verified manufacturer and distributor facts with application-oriented engineering guidance, explicitly identifies missing pinout and electrical details, and separates the AK4493EQ from functional upgrades that may use a different package. It therefore supports faster sourcing and design decisions without presenting unverified specifications as manufacturer data.
AK4497EQ - 32-Bit 2-Channel 128dB Audio DAC | AKM
The Asahi Kasei Microdevices AK4497EQ is a premium 32-bit stereo digital-to-analog converter with two channels, 128 dB dynamic range, support for 768 kHz DSD and PCM audio, and a 64-pin HTQFP package measuring 10 mm by 10 mm. The converter uses AKM's VELVET SOUND architecture, a technology associated with high-end audio equipment and designed for low-distortion signal conversion. A digital-to-analog converter, or DAC, is an integrated circuit that converts digital PCM or DSD audio data into continuous analog voltage signals for downstream amplifiers, headphones, or line-level equipment. The AK4497EQ belongs to the audio DAC family within the broader semiconductor and signal-conversion hierarchy. Its dual-channel architecture allows simultaneous left- and right-channel playback, while its high-resolution format support makes it suitable for premium audio systems that require faithful reproduction of digital recordings. The AK4497's defining feature is the VELVET SOUND architecture, which the manufacturer describes as delivering low distortion and wide dynamic range. The device also integrates an OSR Doubler switched-capacitor filter. According to the manufacturer description, this filter supports a wide range of input signals, lowers out-of-band noise, and helps reduce power consumption. These characteristics make the converter useful in designs where analog output purity and high-resolution playback are more important than a compact, low-cost audio implementation. The AK4497EQ supports 32-bit PCM audio and DSD playback up to 768 kHz. It is packaged in a 64-pin HTQFP surface-mount package with a 10 mm by 10 mm body. The package format provides a substantial thermal and routing footprint for a high-performance stereo converter, but it also requires a carefully designed PCB with adequate exposed-pad handling, clean analog grounding, and separation between digital and analog signal paths. Typical applications include premium desktop and portable DACs, network audio players, high-resolution headphone amplifiers, digital audio workstations, and consumer audio receivers requiring DSD support. The AK4497EQ is particularly appropriate when the system must accept high-rate digital formats while preserving a low-noise analog output stage. It is also suitable for custom audio platforms where the converter is paired with a high-quality output amplifier, analog filter, and precision clock source. For implementation, use the manufacturer's datasheet for the exact pin assignments, recommended application circuit, supported interface modes, clock requirements, and power-supply sequencing. Keep digital clock and data traces away from the analog output section, provide the specified bypass capacitors at the power pins, and route analog return currents without passing through digital return paths. This product page combines the manufacturer's AK4497EQ datasheet information with package, application, sourcing, and drop-in comparison guidance. It is designed to help engineers evaluate the AK4497EQ for high-resolution stereo DAC implementations while emphasizing the practical PCB and signal-integrity decisions that determine realized audio performance.
AK4499EQ - 32-Bit 4-Channel Audio DAC | Asahi Kasei
The Asahi Kasei Microdevices AK4499EQ is a premium switched-resistor, four-channel audio digital-to-analog converter with 32-bit resolution, PCM sampling rates from 8 kHz to 768 kHz, and DSD512 input support. The device is offered in a 128-pin HTQFP package measuring 14 mm by 14 mm. A DAC is a digital-to-analog converter that transforms PCM, DSD, or other digital audio samples into continuous analog voltage signals for amplification and loudspeaker reproduction. The AK4499EQ belongs to the broader digital-to-analog converter hierarchy and uses a switched-resistor architecture intended to provide low distortion and low noise in high-resolution audio equipment. The AK4499EQ supports four DAC channels and multiple digital audio interfaces, including PCM, DSD, and EXDF formats. Its maximum PCM rate is 768 kHz, while its maximum DSD rate is DSD512. These capabilities suit high-resolution network players, USB DACs, professional audio equipment, digital mixing consoles, and premium home-audio systems. Configuration is supported through I2C and 3-wire serial register control. The switched-resistor conversion architecture separates the conversion function from conventional current-source ladder behavior and is intended to improve linearity and reduce distortion. The manufacturer describes the device as a premium four-channel DAC aimed at applications where low distortion, low noise, and support for very high-resolution source material are priorities. Operation can be configured for use with internal LDO regulation or external analog supplies, providing flexibility in power-supply implementation. Typical implementations place the converter between a digital audio receiver such as AK4118 and a high-quality analog output stage. AK4499EX is associated with related AK4499-family designs, while AK4191EQ appears in architectures using an AKM digital interface and converter chipset. The four-channel structure also permits balanced or multichannel output arrangements when the surrounding circuitry supports the converter's channel organization. PCB design requires close attention to the exposed-pad package, analog and digital supply routing, and separation of high-speed digital interfaces from sensitive analog outputs. Place output capacitors and analog routing in accordance with the manufacturer reference layout, keep the exposed pad properly connected to the ground plane, and decouple each supply domain close to its pins. The 14 mm by 14 mm footprint makes thermal management and analog-layout planning more demanding than in a small QFN audio converter. This product page combines the manufacturer datasheet information with practical interface, application, package, and replacement guidance. It also distinguishes verified AK4499EQ characteristics from functional alternatives so engineers can determine whether a candidate is a true pin-compatible replacement or merely a different premium DAC architecture.
AK5355VT - 16-Bit Low-Power Audio ADC | Asahi Kasei
The Asahi Kasei Microdevices AK5355VT is a low-power, 16-bit serial delta-sigma analog-to-digital converter with an integrated input gain amplifier, designed for digital-audio and microphone-signal conversion. The device operates from a 2.1 V to 3.6 V supply, supports an industrial temperature range of -40°C to +85°C, and is supplied in a surface-mount 16-pin TSSOP package. Its combination of 16-bit conversion resolution, integrated gain amplification, and low-voltage operation makes it suitable for audio front ends handling low-level input signals. An analog-to-digital converter is an integrated circuit that samples an analog voltage and converts it into a digital representation. The AK5355VT belongs to the ADC hierarchy: delta-sigma ADC, serial ADC, audio ADC, data-converter IC, and integrated circuit. In audio systems, this conversion stage turns microphone or line-level analog signals into serial digital data that can be processed by an audio codec, DSP, digital mixer, or digital recording equipment. Key verified characteristics include 16-bit resolution, delta-sigma conversion, a serial output interface, and an integrated input gain amplifier. The integrated amplifier reduces the need for a separate microphone preamplifier when operating with suitably low-level inputs. The 2.1 V to 3.6 V operating range is appropriate for low-voltage portable, consumer-electronics, and embedded audio equipment, while the -40°C to +85°C range supports industrial-temperature operation. The AK5355VT uses a serial digital interface, allowing digitized audio to be transferred through a compact connection rather than a parallel bus. This can reduce wiring and PCB routing requirements, although the host processor must be configured to clock and frame the serial data correctly. Exact sampling rate, input bandwidth, clock requirements, digital-interface voltage, and conversion-performance figures were not included in the supplied verified data and therefore require confirmation from the manufacturer datasheet. Typical uses include digital microphones, microphone-array preamplification, audio-recording modules, portable audio equipment, and industrial sound-capture systems. The integrated gain amplifier is especially relevant when the source signal is weak, while the low-voltage supply range simplifies integration with modern 3.3 V digital systems. Designers should verify input range, programmable gain, clocking, serial-format compatibility, and decoupling requirements before layout release. Input and reference circuitry should be placed for low noise, with short analog routing and controlled return paths. The AK5355VT is appropriate when a 16-bit, low-power, 16-TSSOP audio ADC is required, but a different converter may be preferable when a specific sampling rate, channel count, digital format, or pin-compatible second source is mandatory. This product page consolidates the verified electrical, environmental, package, pricing-reference, and sourcing information for the AK5355VT and distinguishes confirmed specifications from parameters that still require datasheet confirmation. It also provides selection guidance, application context, and an honest assessment of the limited drop-in replacement data available.
AK5357ET - 24-Bit Stereo Audio ADC, 96 kHz | AKM
The Asahi Kasei Microdevices/AKM AK5357ET is a 24-bit stereo audio analog-to-digital converter with a sampling-rate range of 4 kHz to 96 kHz, supplied in a 16-pin TSSOP package. It uses Enhanced dual-bit delta-sigma conversion techniques to provide high accuracy for multimedia audio systems and accepts I2S-format digital audio output. The device is designed for applications where two audio channels must be digitized with a high-resolution serial interface. An audio ADC is a specialized data-acquisition IC that converts left- and right-channel analog audio voltages into sequential digital samples. Within the signal path, the ADC belongs to the broader ADC/DAC category and ultimately to the integrated-circuit and data-conversion families. Its sampling rate defines how many audio samples are captured each second, while the 24-bit conversion resolution establishes the numerical format of the resulting samples. The AK5357ET operates with the audio clock signals MCLK, SCLK, and LRCK. The manufacturer datasheet states that all external clocks must be present unless the PDN pin is held low. If the external clocks are absent, placing the converter in power-down mode prevents its internally refreshed logic from drawing excess current. This clock-control requirement makes power sequencing an important part of the surrounding system design. A typical implementation places the AK5357ET after the microphone preamplifier or line-level input stage. Analog inputs are sampled, converted by the dual-bit delta-sigma architecture, and transferred to a digital audio processor or audio codec through the serial interface. The 16-pin TSSOP package is suitable for compact consumer audio, communication, and multimedia equipment where board area is constrained. When designing the PCB, treat MCLK, SCLK, and LRCK as sensitive digital timing signals and route them away from analog input traces. Establish analog and digital ground partitioning according to the layout guidance in the manufacturer datasheet, and place input and interface components close to their associated pins. The analog signal path should be kept short and away from high-current switching nodes. This page consolidates the confirmed converter characteristics, interface requirements, application guidance, and a verified same-family replacement into a design-focused component reference for audio subsystem engineers.
AK5357VT - 24-Bit Stereo Audio ADC | Asahi Kasei
Asahi Kasei Microdevices AK5357VT is a 24-bit stereo audio analog-to-digital converter with a sampling-rate range of 4 kHz to 96 kHz, an I2S interface, and a 16-pin TSSOP package. The converter uses enhanced dual-bit delta-sigma techniques to support multimedia audio acquisition. An audio ADC is an interface integrated circuit that converts left and right analog audio signals into digital samples. It belongs to the data-converter hierarchy, which includes ADCs and DACs, and operates as part of a broader audio signal-chain semiconductor. Audio ADCs are commonly positioned between microphones, line inputs, and digital audio processors. The AK5357VT supports sampling rates from 4 kHz through 96 kHz, making it suitable for voice capture, multimedia equipment, and stereo digital-audio systems. Its 24-bit resolution provides 16,777,216 discrete codes per sample. Digital audio data is transferred through an I2S interface, while the converter operates from a 2.7 V to 5.5 V supply range. Enhanced dual-bit delta-sigma conversion is the core signal-processing technique used by the AK5357. Delta-sigma architecture shapes quantization noise into a higher-frequency band, where digital filtering can reduce its effect on the audio passband. This approach is particularly useful when high resolution and compact implementation are more important than the very low noise associated with a conventional linear converter. Typical uses include stereo multimedia audio inputs, digital-recording equipment, consumer audio interfaces, and systems that accept analog line-level signals for conversion to I2S data. The broad sampling-rate range also allows one converter design to cover multiple audio standards, from low-rate speech processing through high-rate multimedia playback and capture. System integration requires correct clocking because MCLK, SCLK, and LRCK must be present during active operation. If those external clocks are absent, the PDN pin should be driven low to place the AK5357VT in power-down mode. This prevents excess current caused by internal dynamically refreshed logic operating without required clock signals. This product page consolidates the core electrical characteristics, clocking requirements, package information, drop-in candidates, and practical integration notes for engineers evaluating the AK5357VT. Use the AK5357 English datasheet for the authoritative pin-description table, application circuit, electrical characteristics, and ordering information.
AK5359VT - 24-Bit 192kHz Stereo ADC | Asahi Kasei Microdevices
The Asahi Kasei Microdevices (AKM) AK5359VT is a 24-bit stereo delta-sigma analog-to-digital converter (ADC) supporting a wide sampling rate range of 8 kHz to 216 kHz, packaged in a TSSOP-16 surface-mount form factor. It is designed for consumer-to-professional audio systems that require high accuracy at low cost, achieved through AKM's Enhanced dual-bit delta-sigma architecture. The AK5359VT integrates the analog input buffers and reference circuits on-chip, so no external components are required for the analog front end. A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution (24-bit in this case) at moderate bandwidth. Delta-sigma converters sit within the broader taxonomy of audio ADCs, which belong to the data acquisition IC family, which in turn is a subcategory of integrated circuits. The AK5359VT's wide sampling rate (8 kHz to 216 kHz) places it in the lineage of multi-rate audio ADCs suitable for both telephony-grade and high-resolution music applications. Key features of the AK5359VT include its 24-bit resolution, support for sampling rates up to 216 kHz, a stereo (2-channel) input configuration, master/slave mode operation, a built-in high-pass filter (HPF) for DC offset removal, and programmable serial audio interface modes. Operating mode selection for MCLK frequency, SCLK frequency, HPF on/off, and master/slave is performed via the CKS2-CKS0 hardware pins, simplifying system integration without software configuration. The Enhanced dual-bit delta-sigma modulator architecture minimizes multi-bit quantization noise and improves dynamic range. The digital decimation filter is integrated on-chip, producing a standard audio serial output at selectable formats. Together the on-chip analog and digital blocks eliminate the need for external anti-aliasing filters or external references, reducing BOM and PCB area. Typical applications for the AK5359VT include professional audio interfaces, AV receivers, digital mixers, USB audio DAC/ADC combo front-ends, broadcast equipment, and high-end consumer audio products requiring high-resolution stereo capture. The 216 kHz maximum sampling rate also makes it compatible with 192 kHz studio recording and Blu-ray / DVD-Audio formats. When designing with the AK5359VT, place decoupling capacitors close to the AVDD and DVDD pins and route the analog and digital grounds as separate nets joined at a star ground near the device. The HPF should be enabled when interfacing to single-supply analog sources with DC bias, and disabled when the source is already AC-coupled. This page synthesizes distributor pricing, drop-in alternatives, design notes, and pinout guidance not found on the manufacturer datasheet alone.
AK5374EN - 24-Bit 48kHz USB Audio ADC | Asahi Kasei
Asahi Kasei Microdevices AK5374EN is a stereo 24-bit audio analog-to-digital converter with USB 2.0 connectivity and a 48 kHz sampling rate, packaged in a 36-pin QFN measuring 5 mm by 5 mm. The device integrates a USB serial interface engine, USB transceiver, Audio Class processing block, endpoints, and a two-channel ADC, reducing the external circuitry needed for USB digital audio capture. An audio ADC is a mixed-signal integrated circuit that converts left- and right-channel analog audio into digital sample data. In the signal-chain hierarchy, the AK5374EN sits between microphones, line inputs, or other analog audio sources and a USB audio host. Its integrated USB interface combines conversion, clocking, endpoint management, and digital transport in one package, making it suitable for compact USB audio equipment. The principal features include stereo 24-bit conversion, operation up to 48 kHz, an integrated USB 2.0 interface, and a 3 V to 3.6 V supply range. Commercial-grade screening and an operating range of -10°C to +70°C suit room-temperature consumer, computing, and communications equipment. The 5 mm by 5 mm QFN-36 package uses a 0.40 mm pin pitch and is described as halogen-free and plastic-bodied. Technically, the AK5374EN combines analog input conversion with a full-speed USB serial interface engine. The Audio Class processing block and endpoints support digital audio transfer between the converter and a connected USB host, while the integrated transceiver reduces the need for discrete USB interface components. The analog section accepts a nominal 0 V to 1.4 V input range, allowing compatibility with common line-level signals when the surrounding circuit provides appropriate attenuation, biasing, and signal conditioning. Typical uses include USB microphones, headset interfaces, portable digital recorders, conference-audio terminals, streaming devices, and industrial audio-capture adapters. In each case, the stereo inputs can be conditioned before conversion, and the integrated USB interface can connect directly to a host computer or embedded USB controller. The compact QFN-36 package supports space-constrained products but requires careful PCB layout and thermal verification. The primary design consideration is analog signal integrity. Keep analog input routing short, maintain a continuous ground reference, decouple the supply close to the device, and follow the manufacturer datasheet for USB impedance and clock recommendations. Because the converter and transceiver share a compact package, converter, clock, and USB return-current paths should be arranged to minimize coupling into the audio input stage. This product overview combines the verified AK5374EN electrical and package characteristics with practical guidance for USB audio capture designs. It also identifies the major selection criteria—resolution, sample rate, USB integration, package size, operating grade, and analog-input requirements—without substituting an unverified substitute for a confirmed pin-compatible device.
AK5381ET - 24-Bit Stereo 96 kHz ADC | Asahi Kasei
Asahi Kasei Microdevices/AKM AK5381ET is a 24-bit stereo delta-sigma audio analog-to-digital converter with a sampling-rate range of 4 kHz to 96 kHz, supplied in a 16-pin TSSOP package with 0.65 mm lead pitch. It accepts left- and right-channel analog audio through dedicated AINL and AINR inputs and provides digital audio data through its serial interface. An audio ADC is a data-acquisition IC that converts left and right analog audio signals into digital words for transmission to a DSP, digital mixer, audio codec, or digital recording system. The AK5381 belongs to the stereo ADC, delta-sigma ADC, audio data-converter, and integrated-circuit hierarchies. Enhanced dual-bit delta-sigma modulation supports its high-resolution conversion function while the digital decimation filter and serial interface provide the resulting audio data to the following processing stage. The principal device characteristics include 24-bit resolution, a maximum sampling rate of 96 kHz, and a 4 kHz minimum sampling rate. The converter supports a 2.7 V to 5.5 V operating supply range and uses I2S serial audio. Its differential analog and digital ground pins help engineers separate analog signal return paths from digital return paths, while AGND, DGND, and VCOM support the converter’s internal analog reference arrangement. The AK5381ET is intended for high-end audio systems in which two channels must be digitized at rates suitable for CD-quality and higher-resolution playback. Its architecture is based on enhanced dual-bit delta-sigma techniques, which provide a straightforward interface between an analog audio front end and a digital audio processing chain. System clocks are handled through MCLK, CKS0, CKS1, and CKS2-related functions, while LRCK, SCLK, and SDTO support serial audio transfer. Typical applications include professional audio equipment, multichannel mixers, digital recording consoles, high-resolution audio interfaces, and consumer playback systems. The 4 kHz-to-96 kHz range makes the converter suitable for voice, conventional CD-rate audio, and higher-rate digital-audio paths. Its two-channel architecture supports balanced stereo conversion when the circuit is arranged according to the manufacturer’s application guidance. The principal design consideration is maintaining clean, quiet analog and digital power rails while preserving the converter’s clock and data timing integrity. Place decoupling capacitors close to the supply pins, route analog and digital returns according to the pin-description and layout guidance in the manufacturer datasheet, and keep high-current digital clock traces isolated from the analog input network. This product page consolidates the AK5381ET conversion capabilities, interface details, pin constraints, application guidance, and documented drop-in considerations into an engineering-oriented reference. It also distinguishes verified device attributes from parameters that require confirmation before layout, sourcing, or production release.