PCM1870A
Description
The PCM1870A is a low-power stereo ADC designed for portable digital audio applications, with line-input amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto level control (ALC). It is available in a 24-Pin YZF (2.49-mm × 3.49-mm) package to save footprint.
Key Features
- Analog Front End: - Stereo Single End Input With MUX - Mono Differential Input - Stereo Programmable Gain Amplifier - Microphone Boost Amplifier and Bias
- Analog Performances Dynamic Range: 90 dB
- Power-Supply Voltage - 1.71 V to 3.6 V for Digital I/O Section - 1.71 V to 3.6 V for Digital Core Section - 2.4 V to 3.6 V for Analog Section
- Low Power Dissipation: - 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo - 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono - 3.3 µW in All Power Down
- Sampling Frequency: 5 kHz to 50 kHz
- Auto Level Control for Recording
- Operation by Single Clock Input Without PLL
- System Clock: Common Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
- 2 (I2C) or 3 (SPI) Wire Serial Control
- Programmable Function by Register Control: - Digital Soft Mute - Hi-Z for LRCK, BCK and DOUT - Power Up/Down Control for Each Module - 30-dB to -12-dB Gain for Analog Inputs - 0/12/20-dB Boost for Microphone Input - Parameter Settings for ALC - Three-Band Tone Control and 3D Sound - High-Pass Filter and Two-Stage Notch Filter
