Texas Instruments TAS5727 25W Digital Power Amplifiers

Texas Instruments TAS5727 25W Digital Power Amplifiers feature speaker equalization (EQ) that improves audio performance, making them efficient devices for driving stereo bridge-tied speakers. These amplifiers provide two-band dynamic range compression (DRC) that can be used as a power limiter and enable speaker protection, easy listening, and night-mode listening. The TAS5727 also offers autodetect, which automatically detects sample-rate changes without the need for external microprocessor intervention. TI TAS5727 25W Digital Power Amplifiers are ideal for use in LCD TVs, LED TVs, and soundbars.

Features

General
- I²C serial control interface
- Operational without MCLK
- Requires only 3.3V and PVDD
- No external oscillator; internal oscillator for automatic rate detection
- Surface-mount, 48-pin HTQFP package
Audio/PWM Processing
- Independent channel volume controls with a gain of 24dB to mute with 0.125dB 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

Audio Input/Output
- 25W into an 8Ω load from a 20V supply
- Wide PVDD range, from 8V to 26V
- Supports BTL configuration with 4Ω load
- Efficient Class D operation eliminates the need for heat sinks
- One serial audio input (two audio channels)
- I²C address selection pin (chip select)
- Single output filter PBTL support
- Supports 44.1kHz to 48kHz sample rate (LJ/RJ/I²S)