illustrate

The PCM3793A/94A is a low-power stereo codec designed for portable digital audio applications. The device integrates a digital stereo speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a compact, 5mm × 5mm QFN package. The PCM3793A/94A supports right-aligned, left-aligned, I2S and DSP formats, making it convenient to connect to audio DSP and decoder/encoder chips. Support for sampling rates up to 50 kHz. User programmable functions can all be controlled via one or two or three wire serial control ports.

characteristic

• Simulating the frontend:
  • Stereo single-ended input and multiplexer
  • Mono differential input
  • Programmable gain amplifier, stereo
  • Microphone amplifier (20 dB) and bias
• Simulate the backend:
  • Stereo/mono line output
  • volume in stereo/mono mode and capacitive-free headphone amplifier
  • Volumes are available for stereo/mono digital speaker amplifiers (BTLs).
• Simulation Performance:
  • Dynamic range: 93 dB (DAC)
  • Dynamic range: 90 dB (ADC).
  • 40 MW + headphone output in R L 40 MW = 16
• Supply voltage
  • Digital I/O section from 1.71 V to 3.6 V
  • 1.71 V to 3.6 V digital core group
  • Analog section from 2.4 V to 3.6 V
  • 2.4 V to 3.6 V power amplifier section
• Low Power Consumption:
  • 7 megawatts in playback, 1.8 V/2.4 V, 48 kHz