Part A
AK5358AET
Микроустройства Asahi Kasei/AKM
- Lifecycle
- Active
- Stock
- 3586 ПКС
- Package
- TSSOP-16
- Series
- Сбор данных - ADC-DAC - Специальное назначение
Replacement verdict
Compatible functional replacement candidate
The AK5358AET and AK5357VT are both 24-bit stereo delta-sigma ADCs from Asahi Kasei Microdevices (AKM) sharing a compatible functional role, but they differ in package and pin configuration, so the AK5358AET is a viable functional substitute for the AK5357VT only after validating footprint, pinout, and supply/interface details against the target design.
Resolution and ADC Architecture
High match
Package Type
Not compatible
Supply Voltage Range
Validation required
Digital Audio Interface
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AK5358AET | AK5357VT | Why it matters |
|---|---|---|---|
| Resolution (ADC bits) | 24 bit | 24 bit | Bit depth determines the dynamic range and quantization noise floor of the digitized signal; both are 24-bit so this is not a differentiator. |
| Number of ADC channels | 2 (stereo) | 2 (stereo) | Channel count defines whether the part can handle stereo audio; both are stereo ADCs, so channel capacity is equivalent. |
| Sampling rate (max) | 96 kHz | 48 kHz | Maximum sample rate determines the supported audio bandwidth; the AK5358AET supports higher-rate audio while the AK5357VT is limited to standard 48 kHz operation. |
| Supply voltage (analog) | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Analog supply range must match the system rail; both accept a 5 V analog supply, so power design is compatible. |
| Digital supply voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | Digital I/O supply must match the host logic level; both support 3.3 V logic, so interface compatibility is preserved. |
| Audio interface | I2S / left-justified | I2S / left-justified | Serial audio format must match the DSP or codec host; both support standard I2S and left-justified formats, easing drop-in substitution. |
| Package | 24-pin TSSOP | 16-pin TSSOP | Package footprint and pin count affect PCB layout; the different pin counts mean the parts are not footprint-compatible and require layout changes. |
| Control interface | 2-wire serial (I2C) | 2-wire serial (I2C) | Control bus compatibility determines whether the host firmware can configure the device; both use a 2-wire serial interface, so software control is similar. |
| Operating temperature range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment; both are rated for industrial temperature ranges, so environmental suitability is equivalent. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AK5358AET | AK5357VT |
|---|---|---|
| Supplier | - | Asahi Kasei Microdevices/AKM |
| Part Status | Obsolete | Obsolete |
| Type | ADC | ADC |
| Number of Channels | 2 | 2 |
| Resolution(Bits) | 24 b | 24 b |
| Sampling Rate(Per Second) | 8k ~ 96k | 4k ~ 96k |
| Data Interface | I²S | I²S |
| Voltage Supply Source | Analog and Digital | Analog and Digital |
| Voltage - Supply | 2.7V ~ 5.5V, 4.5V ~ 5.5V | 2.7V ~ 5.5V |
| Operating Temperature | -20°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AK5358AET and AK5357VT?
The AK5358AET is a 24-bit, 96 kHz-capable stereo A/D converter with single-ended inputs, while the AK5357VT is a 24-bit, 48 kHz-capable stereo A/D converter with single-ended inputs. The AK5358AET supports higher sample rates and is offered in a 16-pin TSSOP package, whereas the AK5357VT is offered in a 16-pin TSSOP package as well but is limited to 48 kHz operation.
Are the AK5358AET and AK5357VT pin-compatible?
Both devices are supplied in 16-pin TSSOP packages, but pin compatibility cannot be assumed solely from package type. Designers must verify pin functions and control interface assignments against the respective AKM datasheets before considering a layout-compatible substitution.
What sample rates do the AK5358AET and AK5357VT support?
The AK5358AET supports sampling frequencies up to 96 kHz, while the AK5357VT supports sampling frequencies up to 48 kHz. Designs requiring 96 kHz audio capture should use the AK5358AET.
Do both devices offer the same audio interface format?
Both the AK5358AET and AK5357VT provide a serial audio data interface supporting standard formats such as I2S and left-justified. The exact format options and control settings should be confirmed in the respective AKM datasheets, as register maps and mode configurations may differ between the two parts.
What is the resolution and dynamic range of each converter?
Both the AK5358AET and AK5357VT are 24-bit stereo A/D converters. Dynamic range and THD+N specifications differ between the two devices and should be taken from the official AKM datasheets for each part rather than assumed to be identical.
Can the AK5357VT be used as a drop-in replacement for the AK5358AET?
A drop-in replacement is not recommended without validation. Although both are 24-bit stereo A/D converters in 16-pin TSSOP packages, the AK5358AET supports up to 96 kHz while the AK5357VT is limited to 48 kHz, and register maps, control interfaces, and electrical specifications may differ. The replacement must be verified against both datasheets and the target design requirements.
What are the typical applications for these A/D converters?
Both the AK5358AET and AK5357VT are suited to consumer and professional audio capture applications such as set-top boxes, audio receivers, and portable recording devices. The AK5358AET is preferable where higher 96 kHz sampling is required, while the AK5357VT suits 48 kHz-class designs.