TAS5708中文資料具有片上 DRC 和揚(yáng)聲器均衡的 20W 立體聲閉環(huán) 12S 輸入音頻功率放大器數(shù)據(jù)手冊TI規(guī)格書

描述 Description

The TAS5708 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers.A 32-bit datapath eliminates the need for pre-scaling before processing and preserves signal integrity without sacrificing dynamic range.A digital audio processor with fully programmable digital filters allows designers to custom tune speakers for optimum sound in small enclosures.A programmable DRC can adjust power levels for a scaleable design while also enabling night-mode listening modes.The closed-loop architecture allows the device to operate from poorly regulated supplies.Figure 1 below shows the benefit of the feedback architecture when a noisy supply (1kHz, 500mVpp ripple) modulates a 10kHz audio input.The figure shows a 40dB improvement in sideband suppression when compared to an open-loop design.This correlates directly to a 24dB improvement in distortion as seen in Figure 2.

特性 Features

·Audio Input/Output·20-WInto an 8-Ω Load From an 18-V Supply
·Wide PVCC Range (10 V to 26 V); 3.3 V Digital Supply
·Supports One Serial Audio Input (8 kHz - 48 kHz Sample Rates) (LJ/RJ/I2S)
·Power-Stage Feedback Allows Operation From Poorly Regulated Power Supplies

·Audio/PWM Processing·Factory-Trimmed Internal Oscillatorfor Automatic Rate Detection
·High-End 32-Bit Data Path Audio Processor
·14 Biquads for Speaker EQ
·Dynamic Range Control (DRC)

·Benefits·EQ: Speaker Equalization Improves Audio Performance
·DRC: Enables Speaker Protection and Night-Mode Listening.
·Autobank Switching: PreloadedCoefficients for Three Different Sample Rates Eliminates the Need to Update Coefficients When Sample Rate Changes
·Autodetect: Automatically Detects Sample-Rate Changes Eliminating the Need for External Microprocessor Intervention
·Closed-Loop Power Stage: Enables Wide PVCC Operating Range and Reduced Power Supply Ripple Distortion

簡介

TAS5708屬于開發(fā)板套件編程器的評估板-音頻放大器。由TI制造生產(chǎn)的TAS5708評估板 - 音頻放大器音頻放大器評估板是帶有元器件的電路，用于提供特定集成電路或器件的工作實(shí)例。該產(chǎn)品族中的電路板提供了模擬放大器實(shí)例。放大器類型包括 AB 類、D 類、G 類、H 類和 K 類，輸出為耳機(jī)、1 聲道（單聲道）、2 聲道（立體聲）、3 聲道、4 聲道、6 聲道和 8 聲道。