TAS5707A

illustrate

The TAS5707 is a 20-watt, high-efficiency, digitally audio-driven stereo bridged speaker power amplifier. A serial data input allows for processing 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 was the only device for a slave to receive all clocks from external sources. There is a 384 kHz switching frequency and a 352 kHz switching frequency between the operating TAS5707 and the input sampling rate, PWM carrier. Oversampling combined with a fourth-order noise shaper provides a unit noise substrate from 20 Hz and an excellent dynamic range of 20 kHz.

characteristic

• Audio input/output
  • 8 - 20 WThe load is from an 18 V power supply
  • Wide PVDD from 8 V to 26 V
  • Efficient Class D operation eliminates the need for heat sinks
  • Only 3.3 volts and PVDD are required
  • One serial audio input (two audio channels)
  • Supports sample rates from 8 kHz to 48 kHz (2 seconds per RJ/me)
• Audio/pulse width modulation processing
  • Independent channel volume control, mute with 24 dB
  • Soft Silent (50% Duty Cycle)
  • Programmable dynamic range control
  • 14 Speaker EQ and other programmable second-order filters for audio processing functions
  • Design rules check filter programmability coefficients
  • DC Barrier Filter
• General characteristics
  • Serial control interface, non-MCLK services
  • Factory-calibrated automatic rate detection of internal oscillators
  • Surface-mount, 48-pin, 7 mm × 7 mm HTQFP packages
  • Thermal and short-circuit protection
• merit