D2-81433-LR

D2-81433-LR General Description

Support is limited to customers who have already adopted these products.

The D2 Audio DSP D2-1 Family (D2-81412, D2-81431, D2-81433, and D2-81435) is a fully self-contained 4-channel digital amplifier controller System-On-Chip (SOC). The D2-1 Family enables rapid system design for manufacturers of home theater receivers, multi-room distributed audio systems, and powered speakers. The D2-1 Family contains a high-performance digital switching controller to play any input source on any output channel. A configurable audio signal processor provides equalization, volume control, tone control, and compression for each channel, as well as crossover and power limiting for powered speaker applications. The D2-1 Family includes 4-channels I²S/left-justified inputs (16-bit to 24-bit, 32kHz to 192kHz) and an optional S/PDIF receiver (16-bit to 24-bit). Boot options include: Self-boot from an external serial ROM, asynchronous SCI slave boot, and serial slave boot from a host microcontroller.

Features

• Powerful digital audio management: design dependent SRC, routing, mixing, multiple digital audio I/O, tone control, parametric EQ, and compression
• Reduced audio system cost for manufacturers of Class-D audio amplifiers
• Audio processing features enable optimized speaker performance and deliver dramatically improved sound quality
• Minimum development cost/risk/time-to-market
• Pure digital path
• Superior dynamic range
• >110dB SNR, <0.1% THD+N
• 20Hz-20kHz ±0.5dB frequency response

• Digital switching controller
• Flexible audio input sources
• Multiple controller synchronization
• Bridge and non-bridged output topologies
• Standalone or microcontroller boot option
• Four channels
• Pb-free (RoHS compliant)

• Unique performance for each part number
• Superior dynamic range
• >110 dB SNR, <0.1% THD+N
• 20Hz-20kHz ±0.5dB frequency response

• Complete short-circuit, overcurrent, and overvoltage fault protection

• Digital audio inputs support I2S and left-justified formats with linear PCM (32kHz to 192kHz, 16-bit to 24-bit)
• Digital audio input supports S/PDIF format with linear PCM (32kHz to 192kHz, 16-bit to 24-bit)

• D2-81412-LR: 144 Ld LQFP supports D2 Audio DSP Sound Enhancement Algorithms
• D2-81431-LR: 128 Ld LQFP supports D2 Audio DSP Sound Enhancement Algorithms
• D2-81435-LR: 128 Ld LQFP supports D2 Audio DSP Sound Enhancement Algorithms and DTS^TM (SRS) Technology

Specifications