PCMD3140-Q1中文资料汽车类、127dB SNR、768kHz、四通道、PDM 输入到 TDM 或 I²S 输出转换器数据手册TI规格书

特性 Features

• 4-channel PDM microphones simultaneous conversion
• 127-dB dynamic range (DR) with high-performance, 5th-order PDM input
• Channel summing mode, DR performance with high-performance, 4th-order PDM input:
• Programmable PDM clock output:
• Programmable output sample rate (fS):
• Programmable channel settings:
• Gain calibration: 0.1-dB resolution
• Microphone bias or supply voltage generation
• Low-latency signal processing filter selection
• I2C control
• Automatic clock divider setting configurations
• Format: TDM, I2S, or left-justified (LJ)
• Master or slave interface
• Single-supply operation: 3.3 V or 1.8 V
• Power consumption for 1.8-V supply:
• 3.6 mW/channel at 48-kHz sample rate