Description
The TAS5727 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 TAS5727 is a slave-only device receiving all clocks from external sources. The TAS5727 operates with a PWM carrier between a 384-kHz switching rate and a 288-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.
- 25 W Into an 😯 Load From a 20-V Supply
- Wide PVDD Range, From 8 V to 26 V
- Supports BTL Configuration With 4-O 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 44.1-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
- Independent Channel Volume Controls With Gain of 24 dB to
Mute With 0.125-dB Resolution Steps - Programmable Two-Band Dynamic-Range Control
- 18 Programmable Biquads for Speaker EQ and Other
Audio-Processing Features - Programmable Coefficients for DRC Filters
- DC Blocking Filters
- 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 HTQFP Package
- Thermal and Short-Circuit Protection
- 106-dB SNR, A-Weighted
- AD, BD, and Ternary Modulation
- Up to 90% Efficient
- PWM Level Meter to Measure the Digital Power Profile
- EQ: Speaker Equalization Improves Audio Performance
- Two-Band DRC: Dynamic Range Compression. Can Be Used
As Power Limiter. Enables Speaker Protection,
Easy Listening, Night-Mode Listening - Autodetect: Automatically Detects Sample-Rate Changes.
No Need for External Microprocessor Intervention
- LCD TV, LED TV, Soundbar
