TI DIX4192IPFBR

The DIX4192 is a highly integrated CMOS device designed for 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 functional block data and clock interconnection.

The DIR and DIT are compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 interface standards. The audio serial ports and DIT can operate at sample rates up to 216kHz. The DIR lock range covers sample rates between 20kHz and 216kHz.

The DIX4192 is configured via on-chip control registers and data buffers accessible through a 4-wire SPI port or a 2-wire I²C bus interface. Status registers provide access to various flag and error bits from different functional blocks. The device features an open-drain interrupt output pin supported by flexible interrupt reporting and masking options configurable through the control registers. A master reset input pin is also provided for initialization by a host processor or supervisory function.

The DIX4192 requires a 3.3V supply for portions of the DIR, DIT, and line driver and receiver functions, as well as a 1.8V core logic supply. A separate logic I/O supply supports operation from 1.65V to 3.6V, compatible with the low-voltage logic interfaces commonly found on DSPs and programmable logic devices.

The DIX4192 is available in a lead-free TQFP-48 package.

• Digital Audio Interface Transmitter (DIT) supporting up to 216kHz sample rates, with differential line driver and CMOS buffer outputs
• Digital Audio Interface Receiver (DIR) PLL lock range covering sample rates from 20kHz to 216kHz
• Four differential input line receivers with input multiplexer
• Bypass multiplexer routing line driver output to line driver and buffer outputs
• Auto-detection of non-PCM audio streams (DTS CD/LD and IEC 61937 formats)
• Audio CD Q-channel subcode decoding and data buffering
• Low-jitter recovered clock output
• User-selectable serial host interface: 16-bit dim control via SPI or I²C
• On-chip register and data buffer access, status registers and interrupt generation for flagged and error conditions, block-size data buffers for channel status and user data
• Two audio serial ports (Port A and B) for synchronous serial interface with external signal processors, data converters, and logic
• Master/slave mode operation up to 216kHz sample rate
• Left-justified, right-justified, and Philips I2S data format support
• Audio data word lengths up to 24 bits
• Four general-purpose digital outputs with multi-function programmability via control registers
• Extended power-down support with individual disable of unused functional blocks
• Powered by 1.8V core and 3.3V I/O supplies
• Compact TQFP-48 package, compatible with SRC4382 and SRC4392

• Digital audio recorders and mixing consoles
• 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
• Automotive audio systems