PRODUCT OVERVIEW
The AD1853 is a complete high performance single-chip stereo digital audio playback system. It is comprised of a high performance digital interpolation filter, a multibit sigma-delta modulator, and a continuous-time current-out analog DAC section. Other features include an on-chip clickless stereo attenuator and mute capability, programmed through an SPIcompatible serial control port. The AD1853 is fully compatible with all known DVD formats and supports 48 kHz, 96 kHz and 192 kHz sample rates with up to 24 bits word lengths. It also provides the “Redbook” standard 50 µs/15 µs digital de-emphasis filters at sample rates of 32 kHz, 44.1 kHz and 48 kHz.

FEATURES
    5 V Stereo Audio DAC System
    Accepts 16-/18-/20-/24-Bit Data
    Supports 24 Bits and 192 kHz Sample Rate
    Accepts a Wide Range of 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—Least Sensitive to Jitter
    Differential Output for Optimum Performance
    120 dB Signal to Noise (Not Muted) at 48 kHz (A-Weighted Mono)
    117 dB Signal to Noise (Not Muted) at 48 kHz (A-Weighted Stereo)
    119 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Mono)
    116 dB Dynamic Range (Not Muted) at 48 kHz Sample Rate (A-Weighted Stereo)
    –107 dB THD+N (Mono Application Circuit, See Figure 30)
    –104 dB THD+N (Stereo)
    115 dB Stopband Attenuation (96 kHz)
    On-Chip Clickless Volume Control
    Hardware and Software Controllable Clickless Mute
    Serial (SPI) Control for: Serial Mode, Number of Bits, Interpolation Factor, Volume, Mute, De-Emphasis, Reset
    Digital De-Emphasis Processing for 32, 44.1 and 48 kHz Sample Rates
    Clock Auto-Divide Circuit Supports Five Master-Clock Frequencies
    Flexible Serial Data Port with Right-Justified, LeftJustified, I2S-Compatible and DSP Serial Port Modes
    28-Lead SSOP Plastic Package

APPLICATIONS
    Hi End: DVD, CD, Home Theater Systems, Automotive Audio Systems, Sampling Musical Keyboards, Digital Mixing Consoles, Digital Audio Effects Processors