AK4393VF - 24-Bit Stereo Audio DAC | Asahi Kasei Microdevices
MPN: AK4393VF ✓ ActiveAK4393VF Overview
An audio DAC is a converter that transforms digital PCM samples into analog voltage signals suitable for audio amplification and speaker systems. The AK4393VF belongs to the digital-to-analog converter hierarchy, where it combines a digital interface, digital filtering, a multi-bit delta-sigma modulator, and analog output stages. Its stereo architecture supports two audio channels while maintaining a 24-bit digital data path for high-resolution audio systems.
The principal features include 24-bit resolution, a stereo delta-sigma conversion structure, I2S digital audio input, and operation from a 3 V to 5.25 V supply. Manufacturer material describes the device as a high-performance DAC for 96 kHz sampling applications, while distributor product information identifies a maximum sampling rate of 108 kHz for the exact AK4393VF orderable variant. These figures should be used according to the operating mode and interface configuration specified in the manufacturer datasheet.
The advanced multi-bit delta-sigma architecture is central to the converter design. Instead of relying on a conventional single-bit approach, the multi-bit system is intended to provide wider dynamic range while retaining low distortion. The integrated 24-bit digital filter performs decimation and band-limiting of the incoming PCM stream, helping reduce aliasing and out-of-band noise before the signal reaches the analog output stage.
Typical applications include CD and DVD audio players, DAT equipment, digital mixing consoles, home-theater audio processors, and other multichannel or stereo systems requiring a dedicated 24-bit DAC. The I2S interface simplifies connection to digital audio transceivers, receivers, and processors, while the dual analog outputs support conventional left-right signal routing. External analog filtering and output-stage design remain important because the complete audio path determines the final channel separation, noise floor, and distortion performance.
When laying out the board, place the digital interface, analog output, ground-return, and decoupling connections according to the pin-description table and application circuit in the manufacturer datasheet. Analog and digital ground domains should be connected at the recommended analog reference point. Decoupling capacitors should be positioned close to their supply pins, and the analog output traces should remain short and physically separated from clock and data lines to reduce coupling into the reconstructed audio signal.
This page combines manufacturer-device positioning, exact AK4393VF catalog attributes, package information, application guidance, and comparison-oriented selection criteria. It also distinguishes the verified ordering information from parameters that require confirmation in the manufacturer datasheet, helping engineers move quickly from component identification to board-level validation.
Drop-in alternatives for AK4393VF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AK4393VF (same form factor and footprint) — differing in Package, Architecture, Device Type, Product Type.
AK4396VF
✅ Drop-InContact for price
View Datasheet →AK4395VF
✅ Drop-InContact for price
View Datasheet →AK4393VF Maximum Ratings & Electrical Characteristics
| Device Type | Stereo audio digital-to-analog converter (DAC) |
| Bit Resolution | 24 bit |
| Architecture | Advanced multi-bit delta-sigma |
| Channel Count | 2 channels |
| Digital Audio Interface | I2S |
| Analog and Digital Supply Voltage | 3 V to 5.25 V |
| Manufacturer Application Sampling Rate | 96 kHz |
| Catalog Maximum Sampling Rate | 108 kHz |
| Digital Filter Resolution | 24 bit |
| Package | 28-pin VSOP |
| Mounting Type | Surface mount |
| Product Category | ADCs/DACs - Special Purpose |
| Product Type | DAC, Audio |
| Digital-to-Analog Conversion | Delta-sigma |
| Analog Output Configuration | Stereo analog outputs |
AK4393VF 28-pin vsop Pin Configuration Guide
Pin configuration for AK4393VF (28-pin vsop package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AK4393VF.
Refer to the datasheet for full pin configuration.
Typical Applications
AK4393VF is suitable for 6 applications: CD and DVD Audio Player, DAT Digital Audio Equipment, Digital Mixing Console, Home Theater Audio Processor, Professional Audio Interface, Digital Audio Recorder and Playback System.
CD and DVD Audio Player
The AK4393VF fits a digital-audio playback chain requiring a dedicated 24-bit stereo conversion stage. Its I2S interface accepts digital audio from a player or receiver, while the advanced multi-bit delta-sigma architecture and 24-bit digital filter provide the conversion functions expected in DAT and DVD-oriented equipment. The manufacturer identifies the device specifically for the 96 kHz sampling class. In implementation, place the I2S traces away from the analog outputs, keep the output paths short, and follow the application circuit for decoupling and grounding. Verify the final analog filter and output amplifier against the datasheet’s recommended circuit because the DAC alone does not determine the system’s full noise and distortion performance.
Recommended
DAT Digital Audio Equipment
The AK4393VF is a natural fit for DAT equipment because the manufacturer describes it as a high-performance stereo DAC for 96 kHz sampling operation. Its 24-bit resolution and integrated digital filter support a conventional PCM audio data path, while the I2S interface enables connection to a suitable digital audio receiver. The multi-bit delta-sigma design targets wider dynamic range and low distortion compared with a conventional single-bit converter approach. Use short analog output routes, maintain a continuous analog ground reference, and isolate digital clock and data routing from the output nodes. Before layout release, confirm the supported operating mode, master-clock requirements, and recommended external components in the manufacturer datasheet.
Recommended
Digital Mixing Console
The AK4393VF can serve as a stereo master-output or auxiliary-monitor converter in a digital mixing console when 24-bit I2S audio is sufficient. Its stereo output architecture supports left-right monitoring channels, and the integrated digital filtering reduces the design burden associated with separate decimation stages. The converter should be placed near the console output routing and analog amplifier interface to minimize trace length. Use a deliberate analog and digital grounding strategy, because switching processors and clock sources can inject noise through shared return paths. The design must also follow the manufacturer’s output-filter and reference-voltage recommendations to achieve the intended channel balance and distortion performance.
Recommended
Home Theater Audio Processor
The AK4393VF is appropriate for the stereo channels of a home-theater audio processor that uses a 24-bit I2S stream and does not require a multichannel DAC in the same package. The device separates high-resolution digital decoding from the analog output stage, while its multi-bit delta-sigma architecture targets low distortion and wide dynamic range. Route the analog outputs toward a low-noise amplifier and keep the DAC’s digital and analog supply references controlled. Because consumer equipment may combine switching power stages with low-level audio signals, the implementation should use the manufacturer reference layout, local decoupling, and an output filter designed for the selected sample rate. Verify channel separation and output-level behavior on production hardware.
Recommended
Professional Audio Interface
The AK4393VF is suitable for a professional stereo monitoring interface when the project uses I2S and the 24-bit, 96 kHz-class operating target described by the manufacturer. Its dedicated analog outputs can feed balanced or unbalanced output stages after the recommended filtering and amplification. The high-performance DAC architecture is useful in monitoring equipment where conversion artifacts can be heard. Designers should isolate the converter from field-programmable signal-processing logic, use low-impedance analog returns, and keep the I2S clock and data routes away from the output amplifiers. Confirm whether the source clock, master-clock ratio, digital filter mode, and mute behavior satisfy the system requirement before finalizing the audio architecture.
Recommended
Digital Audio Recorder and Playback System
The AK4393VF can form the playback conversion section of a digital recording system that stores or processes 24-bit audio and reproduces it through a stereo analog path. The I2S interface makes it practical to connect the DAC to an audio processor or transceiver, while the digital filter and multi-bit delta-sigma stage perform the required conversion. For simultaneous recording and playback, keep the recording converter and clocking architecture electrically separated to prevent digital coupling into the monitor path. The AK4393VF should use manufacturer-recommended decoupling and analog output filtering. Bench validation should check full-scale output, mute transitions, clock-ratio support, and channel alignment against the system’s audio timing requirements.
Recommended
Recommended Products Summary
Engineering reference data for AK4393VF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AK4396VF | AK4395VF |
|---|---|---|---|
| Brand | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Package | 28-VSOP | 28-VSOP | 28-VSOP |
| Converter Type | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC |
| Sampling Rate Class | 96 kHz manufacturer application class | Up to 192 kHz | 192 kHz |
| Delta-Sigma Architecture | Advanced multi-bit | Advanced multi-bit | Advanced multi-bit |
| Analog Output Channels | 2 channels | 2 channels | 2 channels |
Key Differentiators
- Matches the manufacturer-identified 96 kHz stereo DAC application class (vs AK4395VF)
- Targets the DAT and DVD audio use cases highlighted by the manufacturer (vs AK4396VF)
- Combines a 24-bit digital filter with an advanced multi-bit delta-sigma converter (vs AK4395VF)
Design Notes
Separate the analog outputs from I2S data, master clock, and control traces. Route the two analog outputs as short, matched paths, and keep the analog return continuous back to the converter’s reference point. Place the manufacturer-recommended output-network components close to their associated pins so that switching currents from digital circuitry do not share sensitive analog traces.
Follow the manufacturer power-supply and decoupling layout exactly, especially the treatment of the 3 V to 5.25 V analog and digital supply rails. Place the prescribed capacitors at the associated supply terminals with short ground returns. If analog and digital supplies use separate networks, verify their permitted connection method in the application circuit rather than joining return paths at an arbitrary board location.
Do not substitute AK4395VF or AK4396VF solely because the package is shown as 28-VSOP. A safe redesign requires matching every pin, supply condition, interface timing, clock ratio, filter characteristic, analog output level, and mute state. The higher sampling-rate capability of those related devices does not by itself make them interchangeable with the AK4393VF.
Treat the digital audio interface as a clock-sensitive signal path. Use short traces, continuous reference planes, and termination appropriate to the clock and data-line topology. Avoid routing the I2S signals beneath analog output and filter networks. Validate eye timing and audible noise with the exact clock source and output loading used in production hardware.
Compliance Information
Compliance declarations for the exact AK4393VF ordering code must be confirmed with the manufacturer. AEC-Q100 is not applicable because this component is an audio DAC rather than an automotive-qualified device.
