TAS5705PAPR ,20-W Stereo I2S Audio Power Amplifier with Speaker EQ and DRC 64-HTQFP 0 to 85FEATURES Sample Rates23• Audio Input/Output – Thermal and Short-Circuit Protection– 20-W Into an 8- ..
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TAS5706PAPR ,20-W Stereo Closed-loop I2S Audio Power Amplifier with Speaker EQ and DRC 64-HTQFP 0 to 85FEATURES – Adaptive Biquad Coefficients for EQ andDRC Filters23• Audio Input/Output– Programmable I ..
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TAS5705PAPR
20-W Stereo I2S Audio Power Amplifier with Speaker EQ and DRC
TAS5705
www.ti.com................................................................................................................................................ SLOS549A–JUNE 2008–REVISED SEPTEMBER 2009
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC
Checkfor Samples: TAS5705
1FEATURES Sample Rates
23• Audio Input/Output – Thermal and Short-Circuit Protection 20-W Intoan 8-Ω Load Froman 18-V Supply • Benefits Wide Power-Supply Range From(8Vto – EQ: Speaker Equalization Improves AudioV) Performance Efficient Class-D Operation Eliminates – DRC: Dynamic Range Compression.
Need for Heat Sinks Enables Power Limiting, Speaker
Protection, Easy Listening, Night-Mode– Requires Only Two Power-Supply Rails Listening– Two Serial Audio Inputs (Four Audio Autobank Switching: Preload CoefficientsChannels)
for Different Sample Rates. No Needto– Supports 32-kHz–192-kHz Sample Rates Write Any Coefficientsto the Part When(LJ/RJ/I2S) Sample Rate Changes.– Headphone PWM Outputs – Autodetect: Automatically Detects– Subwoofer PWM Outputs Sample-Rate Changes. No Need for Audio/PWM Processing External Microprocessor Intervention Independent Channel Volume Controls With
24-dBto –100-dB Range DESCRIPTION Soft Mute (50% Duty Cycle) The TAS5705isa 20-W, efficient, digital audio power
amplifier for driving stereo bridge-tied speakers. Two
– Programmable Dynamic Range Controlserial data inputs allow processing of up to four
– 16 Adaptable Biquads for Speaker EQ discrete audio channels and seamless integrationto
– Seven Biquads for Left and Right most digital audio processors and MPEG decoders.
Channels The device acceptsa wide rangeof input data and
clock rates.A fully programmable data path allows
– Two Biquads for Subwoofer Channelthese channelsto be routedto the internal speaker
– Adaptive Coefficients for DRC Filters drivers or output via the line-level subwoofer or
– Programmable Input and Output Mixers headphone PWM outputs.
DC Blocking Filters The TAS5705isa slave-only device receiving clocks
for Subwoofer from external sources. The TAS5705 operatesata
384-kHz switching rate for 32-, 48-, 96-,and 192-kHz
anddata and 352.8-kHz switching rate for 44.1-, 88.2-
and EQ and 176.4-kHz data. The 8× oversampling combined noise shaper providesa flat
Operational dynamic range from 20 Hz to20 kHz.
of Incoming
