The TAS5707 is a 20-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 TAS5707 is a slave-only device receiving all clocks from external sources. The TAS5707 operates with a PWM carrier between a 384-kHz switching rate and 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.
The TAS5707A is identical in function to the HTQFP packaged TAS5707, but has a unique I2C device address. The address of the TAS5707 is 0x36. The address of the TAS5707A is 0x3A.
Audio Input/Output
20-W Into an 8- Load From an 18-V Supply
Wide PVDD Range, From 8 V to 26 V
Efficient Class-D Operation Eliminates Need for Heatsinks
Requires Only 3.3 V and PVDD
One Serial Audio Input (Two Audio Channels)
Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
Audio/PWM Processing
Independent Channel Volume Controls With 24 dB to Mute
Soft Mute (50% Duty Cycle)
Programmable Dynamic Range Control
14 Programmable Biquads for Speaker EQ and Other Audio Processing Features
Programmable Coefficients for DRC Filters
DC Blocking Filters
General Features
Serial Control Interface Operational Without MCLK
Factory-Trimmed Internal Oscillator for Automatic Rate Detection
