特長
- 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
Complete Class-D Amplifier Controller SOC
- 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)
High-Performance Sound
- Unique performance for each part number
- Superior dynamic range
- >110 dB SNR, <0.1% THD+N
- 20Hz-20kHz ±0.5dB frequency response
Graceful Protection and Recovery
- Complete short-circuit, overcurrent, and overvoltage fault protection
Pure Digital Path
- 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)
Multiple Part Offerings
- 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 DTSTM (SRS) Technology
説明
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.
