ADAU1452KCPZ

Overview

The ADAU1452KCPZ is an automotive-qualified SigmaDSP digital audio processor featuring a 32-bit core operating at up to 294.912 MHz with a 1.2 V supply. It provides 40 kWords of data RAM and 8 kWords of program memory, supporting up to 6144 SIMD instructions per sample at 48 kHz. The device includes four serial input/output ports, stereo S/PDIF interfaces, eight asynchronous sample rate converters (ASRCs), and four PDM microphone inputs. It operates within a temperature range of 0°C to +70°C and is housed in a 72-lead LFCSP package.

Feature Summary

• Automotive-qualified 32-bit DSP core running at 294.912 MHz
• Integrated 8-channel ASRCs with 139 dB dynamic range
• Stereo S/PDIF input and output capabilities
• Direct interface support for PDM MEMS microphones

Applications

• Automotive audio processing systems
• Vehicle head units and navigation systems
• Rear seat entertainment systems
• DSP-based sound system amplifiers

Procurement Notes

Verify the specific K suffix indicates the 0°C to +70°C industrial temperature grade rather than the extended -40°C to +105°C automotive grade found in other variants like the WBCPZ. Confirm package compatibility with the 72-lead LFCSP footprint during procurement planning.

Selection Notes

Select the ADAU1452KCPZ when the application requires the full 294.912 MHz processing speed and 40 kWords of data memory but operates within the 0°C to +70°C environmental range. This variant offers identical functionality to the higher-grade ADAU1452WBCPZ except for the reduced temperature specification.

Part Context

This component belongs to the ADAU1452/ADAU1451/ADAU1450 family. The K suffix specifically denotes the industrial temperature range variant (0°C to +70°C). It shares the same architectural features as the standard automotive-grade ADAU1452 but is distinguished by its thermal operating limits.

Replacement Considerations

The ADAU1452WBCPZ serves as a direct functional replacement if the application environment supports temperatures down to -40°C. Ensure that any substitute maintains the 72-lead LFCSP package dimensions and pinout configuration.