PCM1870A Series

90dB SNR Low-Power Stereo Audio ADC With Microphone Bias, ALC, Sound Effect, Notch Filter

Catalog

90dB SNR Low-Power Stereo Audio ADC With Microphone Bias, ALC, Sound Effect, Notch Filter

Part	Supplier Device Package	Package / Case	Resolution (Bits)	Sampling Rate (Per Second) [Max]	Sampling Rate (Per Second) [Min]	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Data Interface	Number of Channels	Voltage Supply Source	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type
Texas Instruments PCM1870RHFT	24-VQFN (5x4)	24-VFQFN Exposed Pad	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount
Texas Instruments PCM1870RHFTG4	24-VQFN (5x4)	24-VFQFN Exposed Pad	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount
Texas Instruments PCM1870AYZFT	24-DSBGA	24-UFBGA DSBGA	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount
Texas Instruments PCM1870RHFR	24-VQFN (5x4)	24-VFQFN Exposed Pad	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount
Texas Instruments PCM1870YZFT	24-DSBGA	24-UFBGA DSBGA	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount
Texas Instruments PCM1870AYZFR	24-DSBGA	24-UFBGA DSBGA	16 b	50k	5k	ADC Audio	1.71 V 2.4 V	3.6 V	I2C Serial SPI™	4	Analog and Digital	85 °C	-40 °C	Surface Mount

Catalog

90dB SNR Low-Power Stereo Audio ADC With Microphone Bias, ALC, Sound Effect, Notch Filter

Key Features

• Analog Front End:Stereo Single End Input With MUXMono Differential InputStereo Programmable Gain AmplifierMicrophone Boost Amplifier and BiasAnalog Performances Dynamic Range: 90 dBPower-Supply Voltage1.71 V to 3.6 V for Digital I/O Section1.71 V to 3.6 V for Digital Core Section2.4 V to 3.6 V for Analog SectionLow Power Dissipation:13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono3.3 µW in All Power DownSampling Frequency: 5 kHz to 50 kHzAuto Level Control for RecordingOperation by Single Clock Input Without PLLSystem Clock: Common Audio Clock(256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz2 (I2C) or 3 (SPI) Wire Serial ControlProgrammable Function by Register Control:Digital Soft MuteHi-Z for LRCK, BCK and DOUTPower Up/Down Control for Each Module30-dB to -12-dB Gain for Analog Inputs0/12/20-dB Boost for Microphone InputParameter Settings for ALCThree-Band Tone Control and 3D SoundHigh-Pass Filter and Two-Stage Notch FilterPop Noise Reduction CircuitPackage:24-DSBGA (2.49 mm × 3.49 mm)Operation Temperature Range: -40°C to 85°CAPPLICATIONSPortable Audio Player, Cellular PhoneVideo Camcorder, Movie Digital Still CameraPMP/DMB, Voice RecorderAnalog Front End:Stereo Single End Input With MUXMono Differential InputStereo Programmable Gain AmplifierMicrophone Boost Amplifier and BiasAnalog Performances Dynamic Range: 90 dBPower-Supply Voltage1.71 V to 3.6 V for Digital I/O Section1.71 V to 3.6 V for Digital Core Section2.4 V to 3.6 V for Analog SectionLow Power Dissipation:13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono3.3 µW in All Power DownSampling Frequency: 5 kHz to 50 kHzAuto Level Control for RecordingOperation by Single Clock Input Without PLLSystem Clock: Common Audio Clock(256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz2 (I2C) or 3 (SPI) Wire Serial ControlProgrammable Function by Register Control:Digital Soft MuteHi-Z for LRCK, BCK and DOUTPower Up/Down Control for Each Module30-dB to -12-dB Gain for Analog Inputs0/12/20-dB Boost for Microphone InputParameter Settings for ALCThree-Band Tone Control and 3D SoundHigh-Pass Filter and Two-Stage Notch FilterPop Noise Reduction CircuitPackage:24-DSBGA (2.49 mm × 3.49 mm)Operation Temperature Range: -40°C to 85°CAPPLICATIONSPortable Audio Player, Cellular PhoneVideo Camcorder, Movie Digital Still CameraPMP/DMB, Voice Recorder

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-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. 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.