PCM1870

采用麥克風偏置、ALC、音效和陷波濾波器的 90dB SNR 低功耗立體聲音頻 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? 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-QFN (4 mm × 5 mm)\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 PCM1870 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 24-QFN (4-mm × 5-mm) and 24-DSBGA (2.49-mm × 3.49-mm) packages to save footprint. The PCM1870 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.

PCM1870

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

PCM1870

Microphone Bias and Microphone Amplifier

PCM1870A

采用麥克風偏置、ALC、音效和陷波濾波器的 90dB SNR 低功耗立體聲音頻 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.

PCM1870_16

Microphone Bias and Microphone Amplifier

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

PCM1870RHFR

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

PCM1870RHFR

Microphone Bias and Microphone Amplifier