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TAS5727 Datasheet(PDF) 1 Page - Texas Instruments |
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TAS5727 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 61 page  TAS5727 www.ti.com SLOS670 – NOVEMBER 2010 25-W DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC Check for Samples: TAS5727 1 FEATURES • Audio Input/Output – Up to 90% Efficient – 25 W Into an 8- Ω Load From a 20-V Supply – PWM Level Meter to Measure the Digital Power Profile – Wide PVDD Range, From 8 V to 26 V A – Supports BTL Configuration With 4- Ω Load • Benefits – Efficient Class-D Operation Eliminates – EQ: Speaker Equalization Improves Audio Need for Heatsinks Performance – One Serial Audio Input (Two Audio – Two-Band DRC: Dynamic Range Channels) Compression. Can Be Used As Power – I2C Address Selection Pin (Chip Select) Limiter. Enables Speaker Protection, Easy – Single Output Filter PBTL Support Listening, Night-Mode Listening – Supports 44.1-kHz to 48-kHz Sample Rate – Autodetect: Automatically Detects (LJ/RJ/I2S) Sample-Rate Changes. No Need for • Audio/PWM Processing External Microprocessor Intervention – Independent Channel Volume Controls With Gain of 24 dB to Mute With 0.125-dB APPLICATIONS Resolution Steps • LCD TV, LED TV, Soundbar – Programmable Two-Band Dynamic-Range DESCRIPTION Control – 18 Programmable Biquads for Speaker EQ The TAS5727 is a 25-W, efficient, digital-audio power and Other Audio-Processing Features amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two – Programmable Coefficients for DRC Filters discrete audio channels and seamless integration to – DC Blocking Filters most digital audio processors and MPEG decoders. • General Features The device accepts a wide range of input data and data rates. A fully programmable data path routes – I2C Serial Control Interface Operational these channels to the internal speaker drivers. Without MCLK The TAS5727 is a slave-only device receiving all – Requires Only 3.3 V and PVDD clocks from external sources. The TAS5727 operates – No External Oscillator: Internal Oscillator with a PWM carrier between a 384-kHz switching rate for Automatic Rate Detection and a 288-KHz switching rate, depending on the input – Surface-Mount, 48-Pin HTQFP Package sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor – Thermal and Short-Circuit Protection and excellent dynamic range from 20 Hz to 20 kHz. – 106-dB SNR, A-Weighted – AD, BD, and Ternary Modulation 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 © 2010, 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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