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TAS5709APHPTIN/a35avai20-W Stereo I2S Audio Amplifier with Speaker EQ and 2-Band DRC 48-HTQFP 0 to 85


TAS5709APHP ,20-W Stereo I2S Audio Amplifier with Speaker EQ and 2-Band DRC 48-HTQFP 0 to 85Featureswith a PWM carrier between a 384-kHz switching rate– Serial Control Interface Operational W ..
TAS5709PHP ,20-W Stereo I2S Audio Amplifier with Speaker EQ and 2-Band DRC 48-HTQFP 0 to 85FEATURES• Audio Input/Output – DRC: Dynamic Range Compression. CanBe Used As Power Limiter. Enables ..
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TAS5709APHP
20-W Stereo I2S Audio Amplifier with Speaker EQ and 2-Band DRC 48-HTQFP 0 to 85
1FEATURES
DESCRIPTION
TAS5709, TAS5709A
www.ti.com.....................................................................................................................................
SLOS599A–NOVEMBER 2008–REVISED SEPTEMBER 2009
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC
Audio Input/Output – DRC: Dynamic Range Compression. Can Used As Power Limiter. Enables– 20-W Intoan 8-Ω Load Froman 18-V Supply
Speaker Protection, Easy Listening,– Wide PVDD Range, From8Vto24V Night-Mode Listening– Efficient Class-D Operation Eliminates – Two-Band DRC: Sets Two DifferentNeed for Heatsinks Thresholds for Low- and High-Frequency– Requires Only 3.3V and PVDD Content One Serial Audio Input (Two Audio – Autobank Switching: Preload CoefficientsChannels) for Different Sample Rates. No Needto Supports 8-kHzto 48-kHz Sample Rate Write New Coefficientsto the Part When
(LJ/RJ/I2S) Sample Rate Changes
Audio/PWM Processing – Autodetect: Automatically Detects Independent Channel Volume Controls With Sample-Rate Changes. No Need for dBto Mute External Microprocessor Intervention Soft Mute (50% Duty Cycle) Programmable 2-Band Dynamic Range
Control
The TAS5709isa 20-W, efficient, digital audio-power
amplifier for driving stereo bridge-tied speakers. One– 22 Programmable Biquads for Speaker EQ serial data input allows processing of up to twoand Other Audio-Processing Features discrete audio channels and seamless integrationto– Programmable Coefficients for DRC Filters most digital-audio processors and MPEG decoders. Programmable Input and Output Mixers The device acceptsa wide rangeof input data and
data rates.A fully programmable data path routes– DC Blocking Filters these channelsto the internal speaker drivers.– Support for 3D Effects
The TAS5709isa slave-only device receiving all– Pseudo Bass Support clocks from external sources. The TAS5709 operates• General Features witha PWM carrier betweena 384-kHz switching rate Serial Control Interface Operational Without anda 352-KHz switching rate, depending on the input
sample rate. Oversampling combined with aMCLK
fourth-order noise shaper providesa flat noise floor– Factory-Trimmed Internal Oscillator for and excellent dynamic range from 20 Hzto20 kHz.Automatic Rate Detection
The TAS5709A is identical in function to the– Surface Mount, 48-Pin, 7-mm× 7-mm TAS5709, but hasa uniqueI2C device address. TheHTQFP Package addressof the TAS5709is 0x36. The addressof the– Thermal and Short-Circuit Protection TAS5709Ais 0x3A.• Benefits EQ: Speaker Equalization Improves Audio
Performance
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