TAS5707 POWER AMPLIFIER Datasheet

TAS5707 Datasheet, PDF, Equivalent


Part Number

TAS5707

Description

20-W STEREO DIGITAL AUDIO POWER AMPLIFIER

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download TAS5707 Datasheet


TAS5707
TAS5707, TAS5707A
www.ti.com
SLOS556B – NOVEMBER 2008 – REVISED NOVEMBER 2009
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC
Check for Samples: TAS5707 TAS5707A
FEATURES
1
23 Audio Input/Output
– 20-W Into an 8-Load From an 18-V Supply
– Wide PVDD Range, From 8 V to 26 V
– Efficient Class-D Operation Eliminates
Need for Heatsinks
– Requires Only 3.3 V and PVDD
– One Serial Audio Input (Two Audio
Channels)
– Supports 8-kHz to 48-kHz Sample Rate
(LJ/RJ/I2S)
• Audio/PWM Processing
– Independent Channel Volume Controls With
24 dB to Mute
– Soft Mute (50% Duty Cycle)
– Programmable Dynamic Range Control
– 14 Programmable Biquads for Speaker EQ
and Other Audio Processing Features
– Programmable Coefficients for DRC Filters
– DC Blocking Filters
• General Features
– Serial Control Interface Operational Without
MCLK
– Factory-Trimmed Internal Oscillator for
Automatic Rate Detection
– Surface Mount, 48-PIN, 7-mm × 7-mm
HTQFP Package
– Thermal and Short-Circuit Protection
• Benefits
– EQ: Speaker Equalization Improves Audio
Performance
– DRC: Dynamic Range Compression. Can
Be Used As Power Limiter. Enables
Speaker Protection, Easy Listening,
Night-Mode Listening
– Autobank Switching: Preload Coefficients
for Different Sample Rates. No Need to
Write New Coefficients to the Part When
Sample Rate Changes.
– Autodetect: Automatically Detects
Sample-Rate Changes. No Need for
External Microprocessor Intervention
APPLICATIONS
• Television
• iPod™ Dock
• Sound Bar
DESCRIPTION
The TAS5707 is a 20-W, efficient, digital-audio power
amplifier for driving stereo bridge-tied speakers. One
serial data input allows processing of up to two
discrete audio channels and seamless integration to
most digital audio processors and MPEG decoders.
The device accepts a wide range of input data and
data rates. A fully programmable data path routes
these channels to the internal speaker drivers.
The TAS5707 is a slave-only device receiving all
clocks from external sources. The TAS5707 operates
with a PWM carrier between a 384-kHz switching rate
and 352-KHz switching rate, depending on the input
sample rate. Oversampling combined with a
fourth-order noise shaper provides a flat noise floor
and excellent dynamic range from 20 Hz to 20 kHz..
The TAS5707A is identical in function to the HTQFP
packaged TAS5707, but has a unique I2C device
address. The address of the TAS5707 is 0x36. The
address of the TAS5707A is 0x3A.
1
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.
iPod is a trademark of Apple Inc.
2
All other trademarks are the property of their respective owners.
3
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 © 2008–2009, Texas Instruments Incorporated

TAS5707
TAS5707, TAS5707A
SLOS556B – NOVEMBER 2008 – REVISED NOVEMBER 2009
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
SIMPLIFIED APPLICATION DIAGRAM
3.3 V
AVDD/DVDD
Digital
Audio
Source
LRCLK
SCLK
MCLK
SDIN
I2C
Control
Control
Inputs
Loop
Filter(1)
SDA
SCL
RESET
PDN
PLL_FLTP
PLL_FLTM
(1)See user's guide for loop-filter details.
8 V–26 V
PVDD
OUT_A
BST_A
BST_B
OUT_B
OUT_C
BST_C
BST_D
OUT_D
LC Left
LC Right
B0264-11
2 Submit Documentation Feedback
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TAS5707 TAS5707A


Features TAS5707, TAS5707A www.ti.com SLOS556B – NOVEMBER 2008 – REVISED NOVEMBER 2009 20-W STEREO DIGITAL AUDIO POWER A MPLIFIER WITH EQ AND DRC Check for Sam ples: TAS5707 TAS5707A FEATURES 1 •2 3 Audio Input/Output – 20-W Into an 8 -Ω Load From an 18-V Supply – Wide PVDD Range, From 8 V to 26 V – Effici ent Class-D Operation Eliminates Need f or Heatsinks – Requires Only 3.3 V an d PVDD – One Serial Audio Input (Two Audio Channels) – Supports 8-kHz to 4 8-kHz Sample Rate (LJ/RJ/I2S) • Audio /PWM Processing – Independent Channel Volume Controls With 24 dB to Mute – Soft Mute (50% Duty Cycle) – Program mable Dynamic Range Control – 14 Prog rammable Biquads for Speaker EQ and Oth er Audio Processing Features – Progra mmable Coefficients for DRC Filters – DC Blocking Filters • General Featur es – Serial Control Interface Operati onal Without MCLK – Factory-Trimmed I nternal Oscillator for Automatic Rate D etection – Surface Mount, 48-PIN, 7-mm × 7-mm HTQFP Package – Thermal and Short-Circuit Protection • Be.
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