DS90UA102-Q1 Datasheet, PDF (1/46 Pages) Texas Instruments – DS90UA102-Q1 Multi-Channel Digital Audio Link

DS90UA102-Q1
www.ti.com
SNLS442A – JULY 2013 – REVISED SEPTEMBER 2013
DS90UA102-Q1 Multi-Channel Digital Audio Link
Check for Samples: DS90UA102-Q1
FEATURES
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• Digital Audio Deserializer
• Flexible Digital Audio Outputs, supporting I²S
(Stereo) and TDM (Multi-Channel) Formats
• Coaxial or Single Differential Pair Interconnect
• High Speed Serial Input Interface
• Very Low Latency (<15 µs)
• Bidirectional Control Interface Channel with
I²C Compatible Serial Control Bus
• Supports up to 8 Stereo I²S or TDM Audio
Outputs
• Supports Audio System Clocks from 10 MHz to
50 MHz
• Single 1.8V Supply
• 1.8V or 3.3V I/O Interface
• 4/4 Dedicated General Purpose Inputs/Outputs
• AC-Coupled STP or Coaxial Cable up to 15m
• DC-Balanced & Scrambled Data w/ Embedded
Clock
• Adaptive Cable Equalization
• At-Speed Link BIST Mode and LOCK Status
Pin
• Automotive Grade Product: AEC-Q100 Grade 2
Qualified
• Temperature Range: -40°C to 105°C
• ISO 10605 and IEC 61000-4-2 ESD Compliant
DESCRIPTION
The DS90UA102-Q1 Deserializer, in conjunction with
the DS90UA101-Q1 Serializer, provides a solution for
distribution of digital audio in multi-channel audio
systems. It receives a high-speed serialized interface
with an embedded clock over a single shielded
twisted pair or coaxial cable. The serial bus scheme
supports high speed forward data transmission and
low speed bidirectional control channel over the link.
Consolidation of digital audio, general-purpose IO,
and control signals over a single differential pair
reduces the interconnect size and weight, while also
reducing design challenges related to skew and
system latency.
The DS90UA102-Q1 Deserializer extracts the clock
and level shifts the signals from high-speed low
voltage differential signaling to single-ended
LVCMOS. The device outputs up to eight digital audio
data channels, word/frame sync, bit clock, and
system clock.
Four dedicated general purpose input pins and four
general purpose output pins allow flexible
implementation of control and interrupt signals to and
from remote devices.
Adaptive equalization of the serial input stream
provides compensation for transmission medium
losses of the cable and reduces medium-induced
deterministic jitter.
APPLICATIONS
• Automotive Infotainment Systems
• Active Noise Cancellation Systems
• Distributed Multi-Channel Audio Systems
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated