TAS5701

illustrate

The TAS5701 is a 20-watt high-efficiency, digitally driven stereo bridge speaker audio power amplifier. Two input serial data supports up to 3 independent audio channels. The SDIN1 input is routed to the internal left and right outputs. The SDIN2 input is dedicated to SUB_PWM ± output.

The TAS5701 is a clock slave whose only device receives from an external clock. The TAS5701 operates at 384 kHz switching speeds of 32-, 48-, 96-, and 192 kHz data and 352.8 kHz switching frequencies of 44.1-, 88.2-, and 176.4 kHz data. 8 × sampling combined with a fourth-order noise shaper provides a noise floor in units from 20 Hz and an 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 range (0 V to 21 V).
  • Efficient Class D operation eliminates the need for a heat sink
  • Two serial (3 audio channels) audio inputs
  • Supports sample rates from 32 kHz to 192 kHz (chicks/RJ/i^{2 seconds}）
  • Line level PWM output for subwoofer
• Audio/pulse width modulation processing
  • BD (filterless) modulation supports bridging loading only
  • 4 levels of volume control (0 dB, 6 dB, 12 dB, 18 dB)
    - All channels share the same controls
  • Soft silence (50% duty cycle)
  • DC barrier filter
  • Fixed at 97.7%, maximum modulation limit
  • ≥ 100 dB signal-to-noise ratio - measured in terms of THD + N = 1%, 1 kHz maximum output,
    A-weighted noise, gain = 0 dB
  • Total harmonic distortion
• General characteristics
  • 5 - V tolerance input (see 5 V fault tolerance entered on the pin list)
  • Shutdown mode for low power consumption
  • Thermal and short-circuit protection
  • Auto-detect: Automatically detects changes in sample rate -
    The need for no external microprocessor intervention