TAS5707A

illustrate

The TAS5707 is a 20-watt, high-efficiency, digital audio-driven stereo bridged speaker power amplifier. One serial data input allows processing of up to two independent audio channels and seamless integration into most digital audio processors and MPEG decoders. The device accepts input data and various data rates. A fully programmable data path routes these internal speaker driver channels.

The TAS5707 is the only device of a slave that receives all clocks from external sources. Operating between the TAS5707 there is a PWM carrier with a switching frequency of 384 kHz and a switching frequency of 352 kHz with a different input sampling rate. Oversampling combined with a fourth-order noise shaper provides a noise floor in units from 20 Hz and excellent dynamic range of 20 kHz.

characteristic

• Audio input/output
  • 8 at 20 W -The load is supplied from an 18 V supply
  • Wide PVDD from 8 V range to 26 V
  • Efficient Class D operation eliminates the need for a heatsink
  • Only 3.3 volts and PVDD are required
  • One serial audio input (two audio channels)
  • Supports sample rates from 8 kHz to 48 kHz (chicks/RJ/i^{2 seconds}）
• Audio/pulse width modulation processing
  • Independent channel volume control, muted with 24 dB
  • Soft silence (50% duty cycle)
  • Programmable dynamic range control
  • Programmable second-order filter for 14-speaker EQ and other audio processing functions
  • Design rules check filter programmable coefficients
  • DC barrier filter
• General characteristics
  • Serial control interface, not MCLK services
  • Factory-calibrated automatic rate detection of internal oscillators
  • Surface mount, 48-pin, 7mm × 7mm HTQFP packages
  • Thermal and short-circuit protection
• merit