EVAL-AD1955EBZ: High Performance, Multibit Sigma-Delta DAC with SACD Playback
The AD1955 is a complete, high performance, single chip stereo digital audio playback system comprised of a multi-bit sigma-delta modulator, digital interpolation filters and a continuous-time differential current output DAC section. Unique to this audio DAC is the separate SACD (super audio CD) bit-stream and external digital filter interface, which allows users maximum system flexibility. The AD1955 supports 24-bits, 192 kHz sample rate and is designed for use in high-end SACD players, DVD-audio, home theater, automotive audio, digital mixing consoles, digital audio effect processors and sampling musical keyboards.
产品应用领域 Applications
- High-End DVD-Audio, SACD, CD, Home Theatre Systems
- Automotive Audio Systems, Sampling Musical Keyboards, Digital
- Mixing Consoles, Digital Audio Effects Processors
EVAL-AD1955EBZ 特点
- Supports 24-Bits, up to 192 kHz Sample Rate PCM Audio Data
- Supports SACD bit-stream and External Digital Filter Interface
- Multibit Sigma Delta Modulator with "Perfect Differential Linearity Restoration" for Reduced Idle Tones and Noise Floor
- Data Directed Scrambling DAC - Least Sensitive to Jitter
- 8.64 mA p-p Differential Output Current for Optimum Performance, with +3 dB headroom in SACD mode
- 5 V Power Supply Stereo Audio DAC System
- 120 dB SNR/DNR (not muted) at 48KHz Sample Rate (A-Weighted Stereo)
- 123 dB SNR/DNR (Mono)
- -110 dB THD+N
- 110 dB Stopband Attenuation with ±0.0002dB Passband Ripple
- Flexible Serial Data Port with Right-Justified, Left-Justified, I2S-Compatible and DSP Serial Port
- 28 Lead SSOP Plastic Package
EVAL-AD1955EBZ 功能框图
| DAC DNR (dB) | 120dB | DAC THD+N @ 1 kHz (-3dB) | 110dB |
| SNR (dB) | 120dB | Product Description | Multibit Sigma-Delta D/A w/ SACD Playback |
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD1955ARS | 量产 | 28 ld SSOP | 28 | 商业 |
| AD1955ARSRL | 量产 | 28 ld SSOP | 28 | 商业 |
| AD1955ARSZ | 量产 | 28 ld SSOP | 28 | 商业 |
| AD1955ARSZRL | 量产 | 28 ld SSOP | 28 | 商业 |
| EVAL-AD1955EBZ | 量产 | 评估板 | - | 商业 |