TPA5051_07 Datasheet, PDF (1/21 Pages) Texas Instruments – FOUR CHANNEL DIGITAL AUDIO LIP-SYNC DELAY WITH I2C CONTROL

TPA5051
TPA5051
www.ti.com
SLOS497A – JUNE 2006 – REVISED JULY 2006
FOUR CHANNEL DIGITAL AUDIO LIP-SYNC DELAY WITH I²C CONTROL
FEATURES
• Digital Audio Format: 16-24-bit I²S,
Right-Justified, Left-Justified
• I²C Bus Controlled
• Dual Serial Input Ports
• Delay Time: 85 ms/ch at fs = 48 kHz
• Delay Resolution: One Sample
• Delay Memory Cleared on Power-Up or After
Delay Changes
– Eliminates Erroneous Data on Output
• 3.3 V Operation With 5 V Tolerant I/O and I²C
Control
• Supports Audio Bit Clock Rates of 32 to 64 fs
with fs = 32 kHz–192 kHz
• No External Crystal or Oscillator Required
– All Internal Clocks Generated From the
Audio Clock
• Independent Clocks for Each Audio Input
• Surface Mount 4mm × 4mm, 16-pin QFN
Package
SIMPLIFIED APPLICATION DIAGRAM
Audio Processor
APPLICATIONS
• High Definition Lip-Sync Delay
• Flat Panel TV Lip-Sync Delay
• Home Theater Rear Channel Effects
• Wireless Speaker Front-Channel
Synchronization
DESCRIPTION
The TPA5051 accepts two serial audio inputs,
buffers the data for a selectable period of time, and
outputs the delayed audio data on two serial outputs.
One device allows delay of up to 85 ms/ch (fs = 48
kHz) to synchronize the audio stream to the video
stream in systems with complex video processing
algorithms. If more delay is needed, the devices can
be connected in series. Independent clocks can be
used for each audio input.
SCLK
TAS3108
or
ATSC
Processor
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
TPA5051
3.3 V
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
DATA_OUT1
DATA_OUT2
Digital Amplfiier
TAS5504A
+ TAS5122
SCLK
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
3
I2C Delay
Control
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of 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 © 2006, Texas Instruments Incorporated