ADAU1788BCBZRL

Overview

The ADAU1788BCBZRL is a low-power audio codec featuring two ADCs, one DAC, and integrated SigmaDSP and FastDSP cores. It supports sample rates up to 768 kHz with 24-bit resolution. Key electrical parameters include an analog supply (AVDD) of 1.8 V typical, digital I/O supply (IOVDD) ranging from 1.1 V to 1.98 V, and a digital core supply (DVDD) of 0.9 V typical. The device offers 96 dB SNR for the ADC path and 105 dB combined SNR for the DAC path. It operates within a temperature range of -40°C to +85°C and is housed in a 42-ball WLCSP package.

Feature Summary

• Integrated programmable FastDSP and SigmaDSP audio processing engines
• Full-duplex asynchronous sample rate converters (ASRCs)
• Supports I2C, SPI, I2S, and TDM interfaces
• Low power consumption with flexible power-down modes

Applications

• Noise cancelling handsets, headsets, and headphones
• Bluetooth ANC devices
• Smartphones and personal navigation devices
• Digital still and video cameras
• Multimedia speaker systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm availability and exact packaging configuration. Confirm that the WLCSP-42 package dimensions match the target PCB layout requirements. Ensure compatibility with the required control interface protocols before finalizing procurement.

Selection Notes

Select this component when low latency and high-performance audio processing are required in a compact form factor. The integrated DSP cores reduce external processor load. Verify that the system clocking architecture supports the PLL input range of 30 kHz to 27 MHz. Ensure the design accommodates the multiple power supply rails (AVDD, IOVDD, DVDD).

Part Context

This part belongs to the Analog Devices SigmaDSP family of audio codecs. It is designed to replace discrete audio processing solutions by integrating conversion, processing, and output drivers into a single chip. The WLCSP package allows for space-constrained applications such as mobile devices and wearable technology.

Replacement Considerations

Check for updated revision numbers or alternative package options within the ADAU1788 series. Verify pin-to-pin compatibility if substituting with other models in the same product line.