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TAS5706BPAP-TAS5706BPAPR
20W Closed-loop I2S Audio Power Amplifier with Speaker EQ, DRC and SE output support 64-HTQFP 0 to 85
1FEATURES
DESCRIPTION
TAS5706A
TAS5706B
www.ti.com............................................................................................................................................. SLOS606D–MARCH 2009–REVISED SEPTEMBER 2009
20-W Stereo Digital Audio Power Amplifier with EQ and DRC
Processing
23• Audio Input/Output – Adaptive Biquad Coefficients for EQ and
DRC Filters– 20-W intoan 8-Ω Load Froman 18-V Supply Programmable Input and Output Mixers– Two Serial Audio Inputs (Four Audio
Channels) – Automatic Sample-Rate Detection and
Coefficient Banking•
TAS5706A Supports: General Features– 2-Ch Bridged Outputs (20W×2) Serial Control Interface Operational Without•
TAS5706B Supports:
MCLK– 2-Ch Bridged Outputs (20W×2) – Factory-Trimmed Internal Oscillator Avoids– 4-Ch Single-Ended Outputs (10W×4) the Need for External Crystal– 2-Ch Single-Ended+ 1-Ch Bridged (2.1 – Surface Mount, 64-Terminal, 10-mm×Mode) (10W×2+20 W) 10-mm HTQFP Package•
Supports 32-kHz–192-kHz Sample Rates – Thermal and Short-Circuit Protection(LJ/RJ/I2S) Closed Loop Power Stage Architecture Improved PSRR Reduces Power Supply The TAS5706A/Bisa 20-W, efficient, digital audio
Performance Requirements power amplifier for driving stereo bridged-tied
– Higher Damping Factor Provides for speakers. Two serial data inputs allow processingof
Tighter, More Accurate Sound With upto four discrete audio channels and seamless
Improved Bass Response integration to most digital audio processors and
MPEG decoders, acceptinga wide range of input
– Constant Output Power Over Variationin data and clock rates.A fully programmable data path
Supply allows these channelsto be routedto the internal•
Wide PVCC Range From (10Vto26V) speaker drivers or output via the subwoofer or
No Separate Supply Required for Gate headphone PWM outputs.
Drive The TAS5706A/Bisa slave-only device receivingall•
Headphone PWM Outputs clocks from external sources. The TAS5706A/B
operatesata 384-kHz switching rate for 32-, 48-, 96-,•
Subwoofer PWM Outputsand 192-kHz data, andata 352.8 kHz switching rate•
AM Interference Avoidance Support for 44.1-, 88.2-, and 176.4-kHz data. The 8ו
Audio/PWM Processing oversampling combined with the fourth-order noise
shaper providesa flat noise floor and excellent
– Independent Channel Volume Controls Withdynamic range from20 Hzto20 kHz.
48-dBto –79-dB Range—Soft Mute (50%
Duty Cycle) Programmable Dynamic Range Control 7 Programmable Biquads for Speaker
Equalization for Left and Right Channels 4 Programmable Biquads for Bassbe aware that notice availability, standard warranty, and usein critical applicationsof Texas semiconductor products thereto appearsatthe endof this data sheet.
TAS5706A is Not Recommended for New Designs
