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TAS5709PHPR Datasheet(PDF) 1 Page - Texas Instruments |
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TAS5709PHPR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 59 page  1 FEATURES DESCRIPTION TAS5709 www.ti.com........................................................................................................................................................................................... SLOS599 – NOVEMBER 2008 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC • Audio Input/Output Performance – 20-W Into an 8- Ω Load From an 18-V Supply – DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables – Wide PVDD Range, From 8 V to 24 V Speaker Protection, Easy Listening, – Efficient Class-D Operation Eliminates Night-Mode Listening. Need for Heatsinks – 2-Band DRC: Set 2 different thresholds for – Requires Only 3.3 V and PVDD low and high frequency content. – One Serial Audio Input (Two Audio – Autobank Switching: Preload Coefficients Channels) for Different Sample Rates. No Need to – Supports 8-kHz to 48-kHz Sample Rate Write new Coefficients to 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 24-dB to Mute External Microprocessor Intervention – Soft Mute (50% Duty Cycle) – Programmable 2-Band Dynamic Range Control The TAS5709 is a 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 two and Other Audio Processing Features discrete audio channels and seamless integration to – Programmable Coefficients for DRC Filters most digital audio processors and MPEG decoders. – Programmable Input and Output Mixers The device accepts a wide range of input data and data rates. A fully programmable data path routes – DC Blocking Filters these channels to the internal speaker drivers. – Support for 3D Effects The TAS5709 is a slave-only device receiving all – Pseudo Bass Support clocks from external sources. The TAS5709 operates • General Features with a PWM carrier between 384-kHz switching rate – Serial Control Interface Operational Without and 352-KHz switching rate depending on the input MCLK sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor – Factory-Trimmed Internal Oscillator for and excellent dynamic range from 20 Hz to 20 kHz. automatic rate detection – Surface Mount, 48-PIN, 7-mm × 7-mm HTQFP Package – Thermal and Short-Circuit Protection • Benefits – EQ: Speaker Equalization Improves Audio 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. Copyright © 2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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