ADAU1445YSVZ-3A-RL

Digital Signal Processor Dsp Overview

The ADAU1445YSVZ-3A-RL is a SigmaDSP digital audio processor featuring a 172 MHz core and a flexible audio routing matrix (FARM). It supports up to eight stereo asynchronous sample rate converters (ASRCs) with a dynamic range of 139 dB. The device provides 24-channel digital I/O, S/PDIF input/output, and TDM interfaces supporting sample rates up to 192 kHz. Power supplies include AVDD at 3.3 V, DVDD at 1.8 V, and PVDD at 3.3 V. It operates within a temperature range of −40°C to +105°C and is housed in a 100-lead LQFP package.

Digital Signal Processor Dsp Feature Summary

• SigmaDSP core operating at 172 MHz with 4k parameter RAM and 8k data RAM
• Flexible Audio Routing Matrix (FARM) with up to 8 stereo ASRCs
• 24-channel digital I/O supporting serial and TDM formats up to 192 kHz
• Integrated on-chip regulator generating 1.8 V from 3.3 V supply

Digital Signal Processor Dsp Applications

• Automotive audio processing head units
• Rear-seat entertainment systems
• DSP amplifiers for sound systems

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging type and reel specifications. Confirm that the component meets RoHS compliance requirements for the intended deployment region. Ensure the design accounts for the moisture sensitivity level indicated in the datasheet during storage and soldering processes.

Digital Signal Processor Dsp Selection Notes

Select this model when system architecture requires three independent clock domains managed by the FARM. Verify that the 100-lead LQFP package dimensions fit the PCB layout constraints. Ensure the application utilizes the 1.8 V digital supply correctly, as the internal regulator generates this voltage from the 3.3 V analog supply.

Digital Signal Processor Dsp Part Context

This component belongs to the ADAU144x family of SigmaDSP processors. It shares the same core architecture and pinout as the ADAU1442 but differs in ASRC channel count and clock domain support. The ADAU1445 specifically supports two ASRC clock domains, whereas the ADAU1446 lacks ASRC functionality entirely.

Digital Signal Processor Dsp Replacement Considerations

The ADAU1442YSVZ-3A-RL offers identical packaging and core features but supports nine clock domains instead of three.