TAS5713PHPR中文资料德州仪器数据手册PDF规格书

1FEATURES

• Audio Input/Output

– 25-W Into an 8-Ω Load From a 20-V Supply

– Wide PVDD Range, From 8 V to 26 V

– Supports BTL Configuration With 4-Ω Load

– Efficient Class-D Operation Eliminates

Need for Heatsinks

– One Serial Audio Input (Two Audio

Channels)

– I2C Address Selection Pin (Chip Select)

– Single Output Filter PBTL Support

– Supports 8-kHz to 48-kHz Sample Rate

(LJ/RJ/I2S)

• Audio/PWM Processing

– Independent Channel Volume Controls With

Gain of 24 dB to Mute

– Programmable Two-Band Dynamic-Range

Control

– 22 Programmable Biquads for Speaker EQ

and Other Audio-Processing Features

– Programmable Coefficients for DRC Filters

– DC Blocking Filters

• General Features

– I2C Serial Control Interface Operational

Without MCLK

– Requires Only 3.3 V and PVDD

– No External Oscillator: Internal Oscillator

for Automatic Rate Detection

– Surface-Mount, 48-Pin, 7-mm × 7-mm

HTQFP Package

– Thermal and Short-Circuit Protection

– 106-dB SNR, A-Weighted

. AD and BD PWM-Mode Support

. Up to 90% Efficient

. Benefits

. EQ: Speaker Equalization Improves Audio

Performance

. DRC: Dynamic Range Compression. Can

Be Used As Power Limiter. Enables

Speaker Protection, Easy Listening,

Night-Mode Listening

. Autobank Switching: Preload Coefficients

for Different Sample Rates. No Need to

Write New Coefficients to the Part When

Sample Rate Changes

. Autodetect: Automatically Detects

Sample-Rate Changes. No Need for

External Microprocessor Intervention

DESCRIPTION

The TAS5713 is a 25-W, efficient, digital-audio power

amplifier for driving stereo bridge-tied speakers. One

serial data input allows processing of up to two

discrete audio channels and seamless integration to

most digital audio processors and MPEG decoders.

The device accepts a wide range of input data and

data rates. A fully programmable data path routes

these channels to the internal speaker drivers.

The TAS5713 is a slave-only device receiving all

clocks from external sources. The TAS5713 operates

with a PWM carrier between a 384-kHz switching rate

and a 352-KHz switching rate, depending on the input

sample rate. Oversampling combined with a

fourth-order noise shaper provides a flat noise floor

and excellent dynamic range from 20 Hz to 20 kHz..