PCM3052A Overview
The PCM3052A is a low-cost, single-chip, 24-bit stereo audio codec (ADC and DAC) with single-ended analog voltage input and output. It also has an analog front end consisting of a 34-dB microphone amplifier, microphone bias generator, 2 stereo multiplexers, and a wide-range PGA. Analogto-digital converters (ADCs) employ delta-sigma modulation with 64-times oversampling.
PCM3052A Key Features
- Microphone Amplifier and Bias
- Monaural Microphone Amplifier: 34-dB Gain at Differential Input
- Microphone Bias: 1 mA at 3.75 V
- Multiplexer and PGA
- Multiplex of Stereo Single-Ended Line Inputs and Monaural Microphone Amplifier
- 0.1 Vrms to 1.5 Vrms Full-Scale Input Range
- 22-kΩ Input Resistance at 0.1-Vrms Input
- 20 dB to -4 dB/range, 1 dB/step PGA
- Reference Output: ±10 mA at 2.5 V
- 24-Bit Delta-Sigma ADC and DAC