LC823450TA-2H

Audio Special Purpose Overview

The LC823450TA-2H is an ultra-low power, 32-bit, 192 kHz high-resolution audio processing system-on-chip (SoC) by onsemi. It integrates dual ARM Cortex-M3 cores and a proprietary LPDSP32 core with 1656 kB of internal SRAM. The device features hard-wired MP3 encoder/decoder, USB 2.0 Host/Device controllers, and analog peripherals including a Class-D stereo headphone amplifier, 6-band equalizer, and ADCs/DACs. Designed for portable sound solutions, it supports noise/echo cancellation and playback speed control for various audio formats.

Audio Special Purpose Feature Summary

• Dual ARM Cortex-M3 cores with proprietary LPDSP32 DSP
• Hard-wired MP3 encoder/decoder supporting VBR up to 320 Kbps
• Integrated USB 2.0 Host and Device controllers with PHY
• Built-in Class-D stereo headphone amplifier and 6-band equalizer

Audio Special Purpose Applications

• Sound recorders
• Wearable audio players
• Bluetooth headsets
• Smart phone accessories

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix TA-2H against the manufacturer's current datasheet to confirm package type and functional availability. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Check for any product change notifications that may affect pinout or electrical specifications.

Audio Special Purpose Selection Notes

Select this component for designs requiring integrated audio processing with low power consumption. Ensure the design accommodates the 128-TQFP package dimensions. Verify that the required memory size fits within the 1656 kB internal SRAM allocation across the dual-core architecture.

Audio Special Purpose Part Context

This part belongs to the LC823450 series of audio processing LSIs. The TA suffix indicates the TQFP128L package variant. Other variants in the series include WLCSP154 and LFBGA240 packages with different feature sets such as single vs. dual core configurations.

Audio Special Purpose Replacement Considerations

Consult the manufacturer's documentation for direct replacements. Alternative packages like WLCSP154 or LFBGA240 offer similar functionality but require PCB layout adjustments due to different form factors.