Analog Devices Inc. AD1955ARSZ

Description
The AD1955 is a high-performance, single-chip, stereo digital audio playback system. It includes a multibit sigma-delta modulator, digital interpolation filters, and continuous-time differential current output DACs. The AD1955 is compatible with DVD audio formats, including 192 kHz and 96 kHz sample frequencies and 24 bits. It also supports digital de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz sample rates.

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
Multibit sigma-delta modulator with "Perfect Differential Linearity Restoration"
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)
123 dB SNR/DNR (Mono)
-110 dB THD N
110 dB stop-band attenuation with ±0.0002 dB pass-band ripple
8x oversampling digital filter
On-chip clickless volume control
Supports SACD-Mute pattern detection
Supports 64 fg/128 f, DSD SACD with phase mode
Internal digital filter pass-through for external filter
Master clock: 256 f, 512 fs, 768 fs
Hardware and software controllable clickless mute
Serial (SPI) control for serial mode, number of bits, sample rate, volume, mute, de-emphasis, mono mode
Digital de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz sample rates
Flexible serial data port with right-justified, left-justified, I²S, and DSP modes
28-lead SSOP plastic package

Applications
High-end DVD audio
SACD
CD
Home theater systems
Automotive audio systems
Sampling musical keyboards
Digital mixing consoles
Digital audio effects processors