PCM1820-Q1数据手册TI中文资料规格书

特性 Features

• Stereo high-performance ADC:
• 2-channel analog microphones or line-in

• ADC line and microphone differential input performance:
• PCM1820-Q1 dynamic range:
• 123-dB, dynamic range enhancer enabled
• 113-dB, dynamic range enhancer disabled

• PCM1821-Q1 dynamic range: 106 dB
• THD+N: –95 dB

• ADC differential 2-VRMS full-scale input
• ADC sample rate (fS) = 8 kHz to 192 kHz
• Hardware pin control configurations
• Linear-phase or low-latency filter selection
• Flexible audio serial data interface:
• Master or slave interface selection
• 32-bits, 2-channel TDM
• 32-bits, 2-channel I2S

• Automatic power-down upon loss of audio clocks
• Integrated high-performance audio PLL
• Single-supply operation: 3.3 V
• I/O-supply operation: 3.3 V or 1.8 V
• Power consumption for 3.3-V AVDD supply:
• 19.6 mW/channel at 16-kHz sample rate
• 21.3 mW/channel at 48-kHz sample rate