Analog Devices Inc. AD1954YSTZRL

Description
The AD1954 is a 26-bit, 3-channel digital audio playback system with built-in DSP functionality. It offers:
Speaker equalization
Dual-band compression/limiting
Delay compensation
Image enhancement
These algorithms compensate for limitations in speakers, amplifiers, and listening environments, improving perceived audio quality.

Features
5V operation
Accepts sample rates up to 48 kHz
7 biquad filter sections per channel
Dual dynamic processor with arbitrary input/output curve and adjustable time constants
0 ms to 6 ms variable delay per channel for speaker alignment
Stereo spreading algorithm for "Phat Stereo" effect
Program RAM for complete new program download via SPI port
Parameter RAM for control of over 200 parameters via SPI port
SPI port with safe-upload mode for transparent filter updates
2 control registers for complete control of modes and memory transfers
Differential output for optimum performance
112 dB signal-to-noise ratio (not muted) at 48 kHz sample rate (A-weighted stereo)
70 dB stop-band attenuation
On-chip clickless volume control
Hardware and software controllable clickless mute
Digital de-emphasis processing for 32 kHz, 44.1 kHz, and 48 kHz sample rates
Flexible serial data port with various modes
Auxiliary digital input

Applications
2.0/2.1 channel audio systems
Multimedia audio
Automotive sound systems
Minicomponent stereo
Home theater systems
Musical instruments
In-seat sound systems