The DIX4192 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 216kHz. The DIR lock range includes sampling rates from 20kHz to 216kHz.

The DIX4192 is configured using on-chip control registers and data buffers, which are accessed through either a 4-wire serial peripheral interface (SPI) port, or a 2-wire Philips I2C bus interface. Status registers provide access to a variety of flag and error bits, which are derived from the various function blocks. An open-drain interrupt output pin is provided, and is supported by flexible interrupt reporting and mask options via control register settings. A master reset input pin is provided for initialization by a host processor or supervisory functions.

The DIX4192 requires a +1.8V core logic supply, in addition to a +3.3V supply for powering portions of the DIR, DIT, and line driver and receiver functions. A separate logic I/O supply supports operation from +1.65V to +3.6V, providing compatibility with low voltage logic interfaces typically found on digital signal processors and programmable logic devices. The DIX4192 is available in a lead-free, TQFP-48 package, and is pin- and register-compatible with the Texas Instruments SRC4382 and SRC4392 products.

• Digital Audio Interface Transmitter (DIT)
  • Supports Sampling Rates Up to 216kHz
  • Includes Differential Line Driver and CMOS Buffered Outputs
  • Block-Sized Data Buffers for Both Channel Status and User Data
  • Status Registers and Interrupt Generation for Flag and Error Conditions
• Digital Audio Interface Receiver (DIR)
  • PLL Lock Range Includes Sampling Rates from 20kHz to 216kHz
  • Includes Four Differential Input Line Receivers and an Input Multiplexer
  • Bypass Multiplexer Routes Line Receiver Outputs to Line Driver and Buffer Outputs
  • Block-Sized Data Buffers for Both Channel Status and User Data
  • Automatic Detection of Non-PCM Audio Streams (DTS CD/LD and IEC 61937 formats)
  • Audio CD Q-Channel Sub-Code Decoding and Data Buffer
  • Status Registers and Interrupt Generation for Flag and Error Conditions
  • Low Jitter Recovered Clock Output
• User-Selectable Serial Host Interface: SPI™ or I2C™
  • Provides Access to On-Chip Registers and Data Buffers
• 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 216kHz
  • 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 Via Control Registers
• Extensive Power-Down Support
  • Functional Blocks May Be Disabled Individually When Not In Use
• Operates From +1.8V Core and +3.3V I/O Power Supplies
• Small TQFP-48 Package, Compatible with the SRC4382 and SRC4392
• APPLICATIONS
  • DIGITAL AUDIO RECORDERS ANDMIXING DESKS
  • DIGITAL AUDIO INTERFACES FOR COMPUTERS
  • DIGITAL AUDIO ROUTERS AND DISTRIBUTION SYSTEMS
  • BROADCAST STUDIO EQUIPMENT
  • DVD/CD RECORDERS
  • SURROUND SOUND DECODERS ANDA/V RECEIVERS
  • CAR AUDIO SYSTEMS

Dolby is a registered trademark of Dolby Laboratories, Inc. I2C, I2S are trademarks of Koninklijke Philips Electronics N.V. SPI is a trademark of Motorola. All other trademarks are the property of their respective owners.