AK5538VN - 32-Bit 768kHz 8-Channel Audio ADC | AKM
N.º de pieza: AK5538VN ✓ ActivoAK5538VN Descripción general
An audio A/D converter is a specialized data-conversion IC that transforms analog audio signals into high-resolution digital words for processing by a DSP, codec, transmitter, or storage system. Within the semiconductor hierarchy, the AK5538VN belongs to the ADC/DAC class, specifically the delta-sigma audio ADC category. Its differential inputs are suited to balanced analog audio paths, while the digital interface transports converted PCM data to the downstream audio processor.
Key features include eight differential input channels, 32-bit conversion, a maximum sampling rate of 768 kHz, 111 dB dynamic range, and 103 dB S/(N+D). Four integrated digital-filter types can be selected according to the preferred sound-quality response. The converter also supports TDM audio formats for straightforward connection to a DSP and provides DSD output capability up to 11.2 MHz. Channel summation can improve the stated dynamic range to 114 dB when operating in an eight-to-two-channel summation configuration.
The AK5538VN combines high channel count with low power consumption, making it useful in professional audio equipment where multiple converted channels must share a compact circuit area. Differential analog routing can reduce susceptibility to common-mode noise when implemented with a properly designed front end. The 64-QFN package also requires careful exposed-pad thermal management and short, symmetrical analog routing.
Typical uses include digital mixing consoles, multichannel studio recorders, multichannel DAC input stages, sampling systems, and high-end digital audio interfaces. The AK5538VN is particularly appropriate when a design needs more than two simultaneous high-resolution audio channels and requires direct DSP connectivity.
A critical design consideration is the relationship among analog input scaling, clocking, digital filtering, and the downstream DSP interface. The datasheet should be consulted for the complete pinout, supported clock configurations, input ranges, reference requirements, decoupling values, and exposed-pad layout.
This page consolidates the verified manufacturer and distributor information, technical application guidance, and drop-in replacement status for the AK5538VN. It distinguishes documented performance from unspecified details so procurement and engineering decisions can be made without treating unavailable electrical data as confirmed.
Alternativas directas para AK5538VN — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasAK5538VN Valores máximos y características eléctricas
| Device Type | Audio A/D converter |
| Architecture | Delta-sigma |
| Resolución | 32 bit |
| Maximum Sampling Rate | 768 kHz |
| Number of Input Channels | 8 channels |
| Input Architecture | 8 differential inputs |
| Dynamic Range | 111 dB |
| Signal-to-Noise plus Distortion | 103 dB S/(N+D) |
| Integrated Digital Filters | 4 selectable types |
| Digital Audio Interface | TDM audio format |
| DSD Output Support | Up to 11.2 MHz |
| Channel Summation Dynamic Range | 114 dB in 8-to-2 channel summation |
| Nominal Supply Voltage | 3.3 V |
| Temperatura de funcionamiento | -40 °C to +105 °C |
| Encapsulado | 64-QFN, 9 x 9 mm |
| Tipo de montaje | Surface mount |
| Estado RoHS | Compliant |
Guía de configuración de pines de AK5538VN 64-qfn, 9 x 9 mm
Configuración de pines para AK5538VN (encapsulado 64-qfn, 9 x 9 mm). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para AK5538VN.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
AK5538VN es adecuado para 6 aplicacións: Digital Mixing Console, Multichannel Studio Recorder, Professional Audio Interface, High-End Multichannel DAC Input, Sampling and DSD Recording System, Broadcast and Installation Audio Hub.
Digital Mixing Console
The AK5538VN fits a digital mixing console because it converts eight differential audio channels simultaneously at up to 768 kHz with 32-bit resolution. Its 111 dB dynamic range and 103 dB S/(N+D) provide a documented performance baseline for high-quality pre-conversion stages, while four selectable digital filters let designers tune the frequency-domain response to the console’s sound profile. The TDM interface can carry multiple converted channels to a mixing DSP while reducing parallel data routing. Because all eight channels share one device, the design should reserve equal, isolated routing for every analog input and follow the manufacturer’s clock and exposed-pad recommendations. This approach is preferable to multiple discrete stereo converters when channel density, synchronization, and compact routing are priorities.
Recomendado
Multichannel Studio Recorder
The AK5538VN is appropriate for a multichannel studio recorder that must preserve high-resolution audio across eight balanced inputs. Its maximum 768 kHz sampling rate supports professional and oversampled recording formats, while the documented 32-bit conversion, 111 dB dynamic range, and 103 dB S/(N+D) support low-noise capture. TDM connectivity helps connect the converter to a recording DSP or digital transport, and DSD output capability up to 11.2 MHz provides additional format flexibility. For a studio design, analog grounding and connector-to-ADC routing should minimize channel-to-channel differences, while the 3.3 V supply and exposed pad must be implemented according to the manufacturer layout guidance.
Recomendado
Professional Audio Interface
The AK5538VN suits a professional multi-channel audio interface because it combines eight differential inputs with 32-bit conversion and a maximum rate of 768 kHz in one 64-QFN device. This allows an interface to preserve consistent converter performance across a bank of balanced inputs instead of combining unrelated stereo converter families. Its TDM output supports a centralized digital signal processor, and selectable filters provide design flexibility for different operating modes. The analog section still requires precision input networks, controlled impedance, short routing, and clean separation between channels. System designers must also budget exposed-pad copper for heat transfer and verify that the selected digital filter, clocking mode, and DSP interface configuration operate together as specified.
Recomendado
High-End Multichannel DAC Input
The AK5538VN can serve as the analog input stage of a high-end multichannel DAC system requiring simultaneous eight-channel conversion. The 111 dB dynamic range and 103 dB S/(N+D) establish a strong noise and distortion baseline before digital processing, while 32-bit resolution and support for sampling rates up to 768 kHz accommodate high-resolution source material. TDM output provides a practical bridge to a digital audio processor, and DSD support up to 11.2 MHz expands format compatibility. Channel-to-channel layout symmetry is especially important in multichannel systems because small routing or grounding differences can create audible imbalance. The implementation should use the manufacturer’s prescribed analog reference, clock, power, and exposed-pad network rather than relying on generic QFN assumptions.
Recomendado
Sampling and DSD Recording System
The AK5538VN is relevant to sampling and DSD recording systems because it supports 768 kHz PCM operation and DSD output up to 11.2 MHz while converting eight differential channels. The four selectable digital filters allow the system designer to compare or optimize conversion responses according to the target recording workflow. Its 32-bit word length provides ample headroom for downstream DSP gain and mixing, while the 111 dB dynamic range is particularly relevant when capturing quiet material through balanced professional inputs. A robust implementation requires a low-jitter master clock, clean analog references, uninterrupted ground planes, and a DSP capable of accepting the selected digital format. Designers should confirm exact DSD clocking and filter behavior in the manufacturer datasheet before fixing the PCB.
Recomendado
Broadcast and Installation Audio Hub
The AK5538VN fits an eight-channel broadcast or installed-audio hub that must accept several balanced sources and forward them to a common processing engine. Eight differential inputs reduce the need for separate converter banks, and the shared 32-bit, 768 kHz conversion capability supports high-resolution multichannel routing. TDM provides a scalable digital handoff to a DSP, while selectable filters allow optimization for different monitoring or transmission profiles. Because the converter handles many channels, PCB symmetry, channel isolation, and power cleanliness are critical; a high-current digital output bus must not disturb the analog inputs. The 64-QFN footprint and exposed pad require careful assembly and thermal design, following the manufacturer’s land pattern and solder-mask guidance exactly.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AK5538VN — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | Asahi Kasei Microdevices |
| Package | 64-QFN (9 x 9 mm) |
| Device Type | Audio A/D converter |
| Resolution | 32 bit |
| Maximum Sampling Rate | 768 kHz |
| Input Channels | 8 differential channels |
| Dynamic Range | 111 dB |
| S/(N+D) | 103 dB |
| Digital Interface | TDM audio format |
| DSD Output | Up to 11.2 MHz |
Diferenciadores clave
- High channel density in one audio converter (frente a Lower-channel stereo audio ADCs)
- Very high-resolution conversion (frente a Conventional audio ADCs)
- Multiple digital output capabilities (frente a PCM-only interface designs)
- Selectable conversion filtering (frente a Fixed-filter audio converters)
Notas de diseño
Route all eight differential analog inputs with consistent geometry, impedance, and separation from the digital output bus. Keep the analog inputs, associated passive components, and the ADC pins close together, while maintaining a deliberate analog and digital partition. The verified 64-QFN package and exposed pad should be implemented using the manufacturer’s exact land pattern, solder-mask, and paste recommendations.
Implement a low-noise 3.3 V supply network and follow the manufacturer’s recommended input and output capacitance values. Place high-frequency bypass capacitors immediately beside the relevant supply and ground pins, and provide adequate copper for the exposed thermal pad. Exact capacitor values, current consumption, and thermal resistance were not included in the supplied verified snippets, so they must be taken from the manufacturer datasheet rather than estimated.
Treat the master clock, digital audio outputs, and mode-control lines as potentially fast edges. Use short routes, continuous reference planes, and appropriate source-series termination where recommended by the DSP interface specification. Confirm the supported TDM lane width, data format, clock polarity, and DSD clocking arrangement before PCB release; incorrect configuration can produce intermittent channel or bit-alignment errors.
Do not treat a suffix change as proof of drop-in compatibility. Verify the exact pin assignments, exposed-pad connection, package dimensions, and thermal requirements of any proposed substitute against the AK5538VN manufacturer documentation. Also avoid assuming that all four digital filters provide identical latency, attenuation, or out-of-band behavior; select the response based on the actual system bandwidth and processing requirements.
Información de cumplimiento
RoHS compliance is stated by a supplied distributor listing. No explicit REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification evidence was supplied.
