TAS5709A POWER AMPLIFIER Datasheet

TAS5709A Datasheet, PDF, Equivalent


Part Number

TAS5709A

Description

20-W STEREO DIGITAL AUDIO POWER AMPLIFIER

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download TAS5709A Datasheet


TAS5709A
TAS5709, TAS5709A
www.ti.com ..................................................................................................................................... SLOS599A – NOVEMBER 2008 – REVISED SEPTEMBER 2009
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC
FEATURES
1
Audio Input/Output
– 20-W Into an 8-Load From an 18-V Supply
– Wide PVDD Range, From 8 V to 24 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 2-Band Dynamic Range
Control
– 22 Programmable Biquads for Speaker EQ
and Other Audio-Processing Features
– Programmable Coefficients for DRC Filters
– Programmable Input and Output Mixers
– DC Blocking Filters
– Support for 3D Effects
– Pseudo Bass Support
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
– Two-Band DRC: Sets Two Different
Thresholds for Low- and High-Frequency
Content
– 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
DESCRIPTION
The TAS5709 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 TAS5709 is a slave-only device receiving all
clocks from external sources. The TAS5709 operates
with a PWM carrier between a 384-kHz switching rate
and a 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 TAS5709A is identical in function to the
TAS5709, but has a unique I2C device address. The
address of the TAS5709 is 0x36. The address of the
TAS5709A 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.
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

TAS5709A
TAS5709, TAS5709A
SLOS599A – NOVEMBER 2008 – REVISED SEPTEMBER 2009 ..................................................................................................................................... www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
SIMPLIFIED APPLICATION DIAGRAM
3.3 V
AVDD/DVDD
Digital
Audio
Source
LRCLK
SCLK
MCLK
SDIN
I2C
Control
Control
Inputs
Loop
Filter*
SDA
SCL
RESET
PDN
PLL_FLTP
PLL_FLTM
8 V–24 V
PVDD
OUT_A
BST_A
BST_B
OUT_B
OUT_C
BST_C
BST_D
OUT_D
*Refer to TAS5709 User's Guide for Loop Filter values
LC Left
LC Right
B0264-03
2 Submit Documentation Feedback
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TAS5709 TAS5709A


Features TAS5709, TAS5709A www.ti.com .......... ....................................... ....................................... ....................................... ...... SLOS599A – NOVEMBER 2008 – R EVISED SEPTEMBER 2009 20-W STEREO DIGIT AL AUDIO POWER AMPLIFIER WITH EQ AND DR C FEATURES 1 • Audio Input/Output 20-W Into an 8-Ω Load From an 18-V Supply – Wide PVDD Range, From 8 V to 24 V – Efficient Class-D Operation E liminates Need for Heatsinks – Requir es Only 3.3 V and PVDD – One Serial A udio Input (Two Audio Channels) – Sup ports 8-kHz to 48-kHz Sample Rate (LJ/R J/I2S) • Audio/PWM Processing – Ind ependent Channel Volume Controls With 2 4 dB to Mute – Soft Mute (50% Duty Cy cle) – Programmable 2-Band Dynamic Ra nge Control – 22 Programmable Biquads for Speaker EQ and Other Audio-Process ing Features – Programmable Coefficie nts for DRC Filters – Programmable In put and Output Mixers – DC Blocking F ilters – Support for 3D Effects – Pseudo Bass Support • General Features – Serial Control Interface.
Keywords TAS5709A, datasheet, pdf, etcTI, 20-W, STEREO, DIGITAL, AUDIO, POWER, AMPLIFIER, AS5709A, S5709A, 5709A, TAS5709, TAS570, TAS57, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)