AD1941YSTZ: SigmaDSPTM Multichannel 28-Bit Audio Processor LQFP-48封装
The AD1941 is a complete 28-bit, single-chip, multichannel audio DSP for speaker equalization, multiband compression/ limiting, delay compensation, and image enhancement. These algorithms can be used to compensate for the real-world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of perceived audio quality.
The signal processing used in the AD1941 is comparable to that found in high-end studio equipment. Most of the processing is done in full 56-bit double-precision mode, resulting in very good low-level signal performance and the absence of limit cycles or idle tones. The compressor/limiter uses a sophisticated multiple-breakpoint algorithm often found in high-end broadcast compressors.
The AD1941 is a fully-programmable DSP. Easy-to-use software allows the user to graphically configure a custom signal processing flow with provided blocks such as biquad filters, dynamics processors, and surround sound processors. An extensive control port allows click-free parameter updates, along with read-back capability from any point in the algorithm flow.
The AD1941’s digital input and output ports allow glueless connection to ADCs and DACs in either 2-channel or TDM mode, and to digital amplifier power stages such as the AD1991. When in TDM mode, the AD1941 can input 8 or 16 channels of serial data, and can output either 8 or 16 channels of serial data. The input and output port configurations can be individually set.
产品应用领域 Applications
- Automotive sound systems
- Mini-component stereos
- Home theater systems (AC-3 postprocessor)
- Multichannel audio systems
- Multimedia audio
- Digital speaker crossover
- Musical instruments
- In-seat sound systems (aircrafts/motor coaches)
AD1941YSTZ 特点
- 16-channel digital audio processor
- Accepts sample rates up to 192 kHz
- 28-bit x 28-bit multiplier with full 56-bit accumulator
- Fully-programmable program RAM for custom program download
- Parameter RAM allows complete control of 1024 parameters
- I^2C control port features safeload for transparent parameter updates and complete mode and memory transfer control
- Hardware-accelerated DSP core
- See data sheet for additional features
AD1941YSTZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD1941YSTZ | 量产 | 48 ld LQFP | 48 | 汽车级 |
| AD1941YSTZRL | 量产 | 48 ld LQFP | 48 | 汽车级 |