PRODUCT OVERVIEW
The AD1896 is a 24-bit, high performance, single-chip, second generation asynchronous sample rate converter. Based on Analog Devices experience with its first asynchronous sample rate converter, the AD1890, the AD1896 offers improved performance and additional features. This improved performance includes a THD + N range of –117 dB to –133 dB depending on the sample rate and input frequency, 142 dB (A-Weighted) dynamic range, 192 kHz sampling frequencies for both input and output sample rates, improved jitter rejection, and 1:8 upsampling and 7.75:1 downsampling ratios. Additional features include more serial formats, a bypass mode, better interfacing to digital signal processors, and a matched-phase mode.

FEATURES
Automatically Senses Sample Frequencies
No Programming Required
Attenuates Sample Clock Jitter
3.3 V–5 V Input and 3.3 V Core Supply Voltages
Accepts 16-/18-/20-/24-Bit Data
Up to 192 kHz Sample Rate
Input/Output Sample Ratios from 7.75:1 to 1:8
Bypass Mode
Multiple AD1896 TDM Daisy-Chain Mode
Multiple AD1896 Matched-Phase Mode
142 dB Signal-to-Noise and Dynamic Range (A-Weighted, 20 Hz–20 kHz BW)
Up to –133 dB THD + N
Linear Phase FIR Filter
Hardware Controllable Soft Mute
Supports 256
fS, 512
fS, or 768
fS Master
Mode Clock
Flexible 3-Wire Serial Data Port with Left-Justified, I2S, Right-Justified (16-,18-, 20-, 24-Bits), and TDM Serial Port Modes
Master/Slave Input and Output Modes
28-Lead SSOP Plastic Package

APPLICATIONS
Home Theater Systems, Studio Digital Mixers, Automotive Audio Systems, DVD, Set-Top Boxes, Digital Audio Effects Processors, Studio-to-Transmitter Links, Digital Audio Broadcast Equipment, DigitalTape Varispeed Applications