PRODUCT OVERVIEW
The AD1855 is a high performance, single-chip stereo, audio DAC delivering 113 dB Dynamic Range and SNR (A-weighted—not muted) at 48 kHz sample rate. It is comprised of a multibit sigma-delta modulator with dither, continuous time analog filters and analog output drive circuitry.

FEATURES
    5 V Stereo Audio DAC System
    Accepts 16-/18-/20-/24-Bit Data
    Supports 24 Bits and 96 kHz Sample Rate
    Multibit Sigma-Delta Modulator with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor
    Data Directed Scrambling DAC—Least Sensitive to Jitter
    Differential Output for Optimum Performance
    113 dB Signal-to-Noise and Dynamic Range at 48 kHz Sample Rate
    110 dB Signal-to-Noise and Dynamic Range at 96 kHz Sample Rate
    –97 dB THD+N
    On-Chip Volume Control with 1024 Steps
    Hardware and Software Controllable Clickless Mute
    Zero Input Flag Outputs for Left and Right Channels
    Digital De-Emphasis Processing
    Supports 128, 256, 384, and 512 3 FS Master Mode Clock
    Switchable Clock Doubler
    Power-Down Mode Plus Soft Power-Down Mode
    Flexible Serial Data Port with Right-Justified, LeftJustified, I2S-Compatible and DSP Serial Port Modes
    28-Lead SSOP Plastic Package

APPLICATIONS
    DVD, CD, Set-Top Boxes, Home Theater Systems, Automotive Audio Systems, Computer Multimedia Products, Sampling Musical Keyboards, Digital Mixing Consoles, Digital Audio Effects Processors