AK5705ECBP-B

Analog To Digital Converters (ADC) Overview

The AK5705ECBP-B is a low-power four-channel 32-bit analog-to-digital converter (ADC) with integrated microphone amplifiers. It supports sampling frequencies up to 384 kHz and offers a dynamic range of 109 dB at 0 dB gain. The device includes built-in transimpedance amplifiers for sensor applications, digital filters, and a PLL. It operates on AVDD (1.7 V to 1.9 V or 3.0 V to 3.6 V) and TVDD (1.65 V to 3.6 V). The component is housed in a 25-pin CSP package measuring 2.1275 x 2.2085 mm with a 0.4 mm pitch.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel 32-bit ADC with MIC amplifier gain adjustable from +24 dB to 0 dB in 3 dB steps
• Supports sampling rates up to 384 kHz with I2S/MSB justified and TDM interfaces
• Integrated transimpedance amplifier for current-to-voltage conversion
• Built-in PLL and I2C-bus control interface

Analog To Digital Converters (ADC) Applications

• Audio recording systems
• Voice recognition and voice control devices
• Teleconferencing equipment
• High S/N microphone arrays

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix ECBP-B against the manufacturer's official documentation to confirm pinout, lead finish, and environmental compliance status. Ensure compatibility with the required AVDD and TVDD voltage ranges during system design. Confirm RoHS compliance details directly with authorized distributors as specified in the product notice.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-resolution audio capture with low power consumption. The integrated transimpedance amplifier allows use with photodiodes or sensors without external conversion circuitry. Ensure the host processor supports the required I2S or TDM formats and that the available clocking infrastructure can drive the internal PLL for target sampling frequencies.

Analog To Digital Converters (ADC) Part Context

The AK5705 belongs to Asahi Kasei Microdevices' family of low-power audio ADCs. It is designed to replace discrete microphone preamplifier and ADC solutions by integrating signal conditioning, filtering, and digital interfacing into a single compact package. The device supports cascading multiple units to expand channel counts for array processing.

Analog To Digital Converters (ADC) Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Asahi Kasei Microdevices sales offices for current availability and potential alternative components within their portfolio.