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.

APPLICATIONS

* High-End DVD-Audio, SACD, CD, Home Theatre Systems

* Automotive Audio Systems, Sampling Musical Keyboards, Digital

* Mixing Consoles, Digital Audio Effects Processors

* 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

* 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