Texas Instruments TAS5717 Digital Audio Power Amplifiers
Texas Instruments TAS5717 10W digital audio power amplifiers are designed 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. TI TAS5717 digital audio power amplifiers accept a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers. The TI TAS5717 is a slave-only device receiving all clocks from external sources. The TAS5717 operates with a PWM carrier between a 384kHz switching rate and a 352KHz 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 20Hz to 20kHz.
Features
- Supports 2×10W
- Wide PVDD range, from 4.5V to 26V
- Efficient Class-D operation eliminates need for heatsinks
- Requires only 3.3V and PVDD
- One serial audio input (two audio channels)
- I2C address selection via PIN (chip select)
- Supports 8kHz to 48kHz sample rate (LJ/RJ/I2S)
- External headphone-amplifier shutdown signal
- Integrated CAP-free headphone amplifier
- Stereo headphone (stereo 2VRMS line driver) outputs
- Audio/PWM processing
- Independent channel volume controls With 24dB to mute
- Programmable two-band dynamic range control
- 14 programmable biquads for speaker EQ
- Programmable coefficients for DRC filters
- DC blocking filters
- 0.125dB fine volume support
- Designed for bridge-tied speaker applications
Functional View
