EVAL-AD1940AZ: SigmaDSPTM Multichannel 28-Bit Audio Processor
The AD1940 is a complete 28-bit, single-chip, multichannel audio DSP for equalization, multiband dynamics processing, delay compensation, speaker 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 AD1940 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 dynamics processor uses a sophisticated, multiple-breakpoint algorithm often found in high end broadcast compressors.
The AD1940 is a fully-programmable DSP. Easy-to-use software allows the user to graphically configure a custom signal processing flow using blocks such as biquad filters, dynamics processors, and surround sound processors. An extensive control port allows click-free parameter updates, along with readback capability from any point in the algorithm flow.
The AD1940’s digital input and output ports allow a glueless connection to ADCs and DACs by multiple, 2-channel serial data streams or TDM data streams. When in TDM mode, the AD1940 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. The AD1940 is controlled via a 4-wire SPI port.
产品应用领域 Applications
- Automotive sound systems
- Digital televisions
- Home theater systems (Dolby Digital/DTS postprocessor)
- Multichannel audio systems
- Mini-component stereos
- Multimedia audio
- Digital speaker crossover Musical instruments In-seat sound systems (aircrafts/motor coaches)
EVAL-AD1940AZ 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
- SPI 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
EVAL-AD1940AZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD1940YSTZ | 量产 | 48 ld LQFP | 48 | 汽车级 |
| AD1940YSTZRL | 量产 | 48 ld LQFP | 48 | 汽车级 |
| EVAL-AD1940AZ | 量产 | 评估板 | - | 待定 |
| EVAL-AD1940MINIBZ | 量产 | 评估板 | - | 汽车级 |
| EVAL-ADUSB2EBZ | 量产 | 评估板 | - | 汽车级 |