1 Features
1• Digital Audio Interface Transmitter (DIT)
– Supports Sampling Rates Up to 216 kHz
– Includes Differential Line Driver and
CMOS-Buffered Outputs
• Digital Audio Interface Receiver (DIR)
– PLL Lock Range Includes Sampling Rates
from 20 kHz to 216 kHz
– Four Differential-Input Line Receivers and an
Input Multiplexer
– Bypass Multiplexer Routes Line Receiver
Outputs to Line Driver and Buffer Outputs
– Automatic Detection of Non-PCM Audio
Streams (DTS CD/LD and IEC 61937 formats)
– Audio CD Q-Channel Sub-Code Decoding and
Data Buffer
– Low Jitter Recovered Clock Output
• User-Selectable Serial Host Interface: SPI™ or
I2C
– Provides Access to On-Chip Registers and
Data Buffers
– Status Registers and Interrupt Generation for
Flag and Error Conditions
– Block-Sized Data Buffers for Both Channel
Status and User Data
• Two Audio Serial Ports (Ports A and B)
– Synchronous Serial Interface to External
Signal Processors, Data Converters, and Logic
– Slave or Master Mode Operation With
Sampling Rates Up to 216 kHz
– Supports Left-Justified, Right-Justified, and
Philips I2S™ Data Formats
– Supports Audio Data Word Lengths Up to
24 Bits
• Four General-Purpose Digital Outputs
– Multifunction Programmable Through Control
Registers
• Extensive Power-Down Support
– Functional Blocks May Be Disabled
Individually When Not In Use
• Operates From 1.8-V Core and 3.3-V I/O Power
Supplies
• Small TQFP-48 Package, Compatible With the
SRC4382 and SRC4392

2 Applications
• Digital Audio Recorders and Mixing Desks
• Digital Audio Interfaces for Computers
• Digital Audio Routers and Distribution Systems
• Broadcast Studio Equipment
• DVD and CD Recorders
• Surround Sound Decoders and A/V Receivers
• Car Audio Systems

3 Description
The DIX4192 device is a highly-integrated CMOS
device designed for use in professional and
broadcast digital audio systems. The DIX4192
combines a digital audio interface receiver (DIR) and
transmitter (DIT), two audio serial ports, and flexible
distribution logic for interconnection of the function
block data and clocks.
The DIR and DIT are compatible with the AES3,
S/PDIF, IEC 60958, and EIAJ CP-1201 interface
standards. The audio serial ports and DIT may be
operated at sampling rates up to 216 kHz. The DIR
lock range includes sampling rates from 20 kHz to
216 kHz.