PCM1870A

采用麦克风偏置、ALC、音效和陷波滤波器的 90dB SNR 低功耗立体声音频 ADC; • Analog Front End: \n• Stereo Single End Input With MUX\n• Mono Differential Input\n• Stereo Programmable Gain Amplifier\n• Microphone Boost Amplifier and Bias\n \n• Analog Performances Dynamic Range: 90 dB\n• Power-Supply Voltage \n• 1.71 V to 3.6 V for Digital I/O Section\n• 1.71 V to 3.6 V for Digital Core Section\n• 2.4 V to 3.6 V for Analog Section\n \n• Low Power Dissipation: \n• 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo\n• 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono\n• 3.3 µW in All Power Down\n \n• Sampling Frequency: 5 kHz to 50 kHz\n• Auto Level Control for Recording\n• Operation by Single Clock Input Without PLL\n• 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\n• 2 (I2C) or 3 (SPI) Wire Serial Control\n• Programmable Function by Register Control: \n• Digital Soft Mute\n• Hi-Z for LRCK, BCK and DOUT\n• Power Up/Down Control for Each Module\n• 30-dB to -12-dB Gain for Analog Inputs\n• 0/12/20-dB Boost for Microphone Input\n• Parameter Settings for ALC\n• Three-Band Tone Control and 3D Sound\n• High-Pass Filter and Two-Stage Notch Filter\n \n• Pop Noise Reduction Circuit\n• Package: \n• 24-DSBGA (2.49 mm × 3.49 mm)\n \n• Operation Temperature Range: -40°C to 85°C\n• APPLICATIONS \n• Portable Audio Player, Cellular Phone\n• Video Camcorder, Movie Digital Still Camera\n• PMP/DMB, Voice Recorder;

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-DSBGA (2.49-mm × 3.49-mm) package to save footprint. The PCM1870A accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a 2- or 3-wire serial control port.

PCM1870A

16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier

PCM1870AYZFR

16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier

PCM1870AYZFT

16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier

PCM1870AYZFR

Package：24-UFBGA，DSBGA；包装：卷带（TR） 类别：集成电路（IC） ADC/DAC - 特殊用途 描述：IC ADC/AUD 16BIT 5K-50K 24DSBGA

PCM1870AYZFT

Package：24-UFBGA，DSBGA；包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 类别：集成电路（IC） ADC/DAC - 特殊用途 描述：IC ADC/AUD 16BIT 5K-50K 24DSBGA