TAS5727

illustrate

The TAS5727 is a 25-watt, high-efficiency, digital 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 TAS5727 was the only device for a slave to receive all clocks from external sources. There is a 384 kHz switching frequency and a 288 kHz switching frequency between the operating TAS5727, and the input sampling rate depends on the 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
  • 8Ω load from 20 V supply at 25 W
  • Wide PVDD from 8 V to 26 V
  • Supports BTL configuration with 4Ω load
  • Efficient Class D operation eliminates the need for heat sinks
  • One serial audio input (two audio channels)
  • Address Selection Pin for I 2 C (Chip Selection)
  • Single-output filter PBTL support
  • Supports sample rates from 44.1 -kHz to 48 kHz (2 seconds per RJ/me)
• Audio/pulse width modulation processing
  • Independent channel volume control with gain of 24 dB
    Silent 0.125 dB resolution steps
  • Programmable two-band dynamic range control
  • 18-speaker EQ and other programmable second-order filters
    Audio processing capabilities
  • Design rules check filter programmability coefficients
  • DC Barrier Filter
• General characteristics
  • I 2C serial control interface
    MCLK's business is not
  • Only 3.3 volts and PVDD are required
  • No external oscillator required: internal oscillator automatic
    rate detection
  • Surface-mount, 48-pin HTQFP package