深圳市中立信电子科技有限公司

AD1955ARSZ

音频数/模转换器 IC IC 24 Bit 192kHZ 123 Db DNR w/SACD

PRODUCT OVERVIEW  

The AD1955ARSZ AD1955 is a complete, high performance, single-chip, stereo  digital audio playback system. It is comprised of a multibit sigmadelta  modulator, high performance digital interpolation filters,  and continuous-time differential current output DACs. Other  features include an on-chip clickless stereo attenuator and mute  capability, programmed through an SPI compatible serial control  port. The AD1955ARSZ AD1955 is fully compatible with all known DVD audio  formats including 192 kHz as well as 96 kHz sample frequencies  and 24 bits. It is also backward compatible by supporting 50 μs/  15 μs digital de-emphasis intended for “redbook” compact discs,  as well as de-emphasis at 32 kHz and 48 kHz sample rates.

APPLICATIONS AD1955ARSZ

High End DVD Audio

SACD

CD

Home Theater Systems

Automotive Audio Systems

Sampling Musical Keyboards

Digital Mixing Consoles

Digital Audio Effects Processors

FEATURES

5 V Power Supply Stereo Audio DAC System

Accepts 16-/18-/20-/24-Bit Data

Supports 24-Bit, 192 kHz Sample Rate PCM Audio Data

Supports SACD Bit Stream and External Digital Filter

Interface

Accepts a Wide Range of PCM Sample Rates Including:

32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and

192 kHz

Multibit Sigma-Delta Modulator with "Perfect Differential

Linearity Restoration" for Reduced Idle Tones and

Noise Floor

Data Directed Scrambling DAC––Low Sensitivity to Jitter

Supports SACD Playback with "Bit Expansion" Filter

Differential Current Output for Optimum Performance

8.64 mA p-p Differential Output

120 dB SNR/DNR (not muted) at 48 kHz Sample Rate

(A-Weighted Stereo)