PCM6020-Q1 Series

Automotive 2-channel audio ADC with integrated microphone bias, boost and input diagnostics

Catalog

Automotive 2-channel audio ADC with integrated microphone bias, boost and input diagnostics

Part	Grade	Number of Channels [custom]	Resolution (Bits)	Qualification	Voltage Supply Source	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Type	Mounting Type	Sampling Rate (Per Second)	Voltage - Supply [Min]	Voltage - Supply [Max]
Texas Instruments PCM6020QRTVRQ1	Automotive	2	16 b 20 b 24 b 32 b	AEC-Q100	Analog and Digital	DSP I2C I2S SPI	125 °C	-40 °C	32-WQFN (5x5)	ADC Audio	Surface Mount	768 kHz	1.65 V 3 V	1.95 V 3.6 V

Catalog

Automotive 2-channel audio ADC with integrated microphone bias, boost and input diagnostics

Key Features

• AEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C ≤ TA≤ +125°CADC performance:Line differential input dynamic range: 110 dBMicrophone differential input dynamic range: 110 dBTHD+N: –94 dBChannel summing mode supports high SNRADC input voltage:Differential, 10-VRMSfull-scale inputsSingle-ended, 5-VRMSfull-scale inputsADC sample rate (fS) = 8 kHz to 768 kHzProgrammable channel settings:Channel gain: 0 dB to 42 dB, 1-dB stepsDigital volume control: –100 dB to 27 dBGain calibration with 0.1-dB resolutionPhase calibration with 163-ns resolutionProgrammable microphone bias (5 V to 9 V):With integrated efficient boost converterProgrammable microphone input fault diagnostics:Open inputs or shorted inputsShort to ground, MICBIAS, or VBATMicrophone bias over current protectionLow-latency signal processing filter selectionProgrammable HPF and biquad digital filtersI2C or SPI controlsAudio serial data interface:Format: TDM, I2S, or left-justified (LJ)Word length: 16 bits, 20 bits, 24 bits, or 32 bitsMaster or slave interfaceSingle-supply, 3.3-V operationI/O supply operation: 3.3 V or 1.8 VPower consumption:< 21.5 mW/channel at 48-kHzAEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C ≤ TA≤ +125°CADC performance:Line differential input dynamic range: 110 dBMicrophone differential input dynamic range: 110 dBTHD+N: –94 dBChannel summing mode supports high SNRADC input voltage:Differential, 10-VRMSfull-scale inputsSingle-ended, 5-VRMSfull-scale inputsADC sample rate (fS) = 8 kHz to 768 kHzProgrammable channel settings:Channel gain: 0 dB to 42 dB, 1-dB stepsDigital volume control: –100 dB to 27 dBGain calibration with 0.1-dB resolutionPhase calibration with 163-ns resolutionProgrammable microphone bias (5 V to 9 V):With integrated efficient boost converterProgrammable microphone input fault diagnostics:Open inputs or shorted inputsShort to ground, MICBIAS, or VBATMicrophone bias over current protectionLow-latency signal processing filter selectionProgrammable HPF and biquad digital filtersI2C or SPI controlsAudio serial data interface:Format: TDM, I2S, or left-justified (LJ)Word length: 16 bits, 20 bits, 24 bits, or 32 bitsMaster or slave interfaceSingle-supply, 3.3-V operationI/O supply operation: 3.3 V or 1.8 VPower consumption:< 21.5 mW/channel at 48-kHz

Description

The PCM6020-Q1 is a 2-channel high-performance, audio analog-to-digital converter (ADC) that supports analog input signals up to 10 VRMS. The PCM6020-Q1 supports line and microphone inputs, and allows for both single-ended and differential input configurations. This device offers an integrated high-voltage, programmable microphone bias, and input diagnostic circuitry that allows direct connection to microphone-based automotive systems with full fault diagnostic capability for direct-coupled inputs. The PCM6020-Q1 integrates an efficient boost converter to generate a high voltage microphone bias using an external, low-voltage, 3.3-V supply, which is a readily available supply in the system to generate the high-voltage, programmable microphone bias. The PCM6020-Q1 integrates the programable channel gain, digital volume control, a low-jitter phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz. The PCM6020-Q1 supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. These integrated high-performance features, along with a single, 3.3-V supply operation, make the PCM6020-Q1 device along with PCM6xx0-Q1 device family an excellent choice for scalable, space-constrained automotive systems. The PCM6020-Q1 is part of a largerPCM6xx0-Q1 device family, available for download atti.com. The PCM6020-Q1 is a 2-channel high-performance, audio analog-to-digital converter (ADC) that supports analog input signals up to 10 VRMS. The PCM6020-Q1 supports line and microphone inputs, and allows for both single-ended and differential input configurations. This device offers an integrated high-voltage, programmable microphone bias, and input diagnostic circuitry that allows direct connection to microphone-based automotive systems with full fault diagnostic capability for direct-coupled inputs. The PCM6020-Q1 integrates an efficient boost converter to generate a high voltage microphone bias using an external, low-voltage, 3.3-V supply, which is a readily available supply in the system to generate the high-voltage, programmable microphone bias. The PCM6020-Q1 integrates the programable channel gain, digital volume control, a low-jitter phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz. The PCM6020-Q1 supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. These integrated high-performance features, along with a single, 3.3-V supply operation, make the PCM6020-Q1 device along with PCM6xx0-Q1 device family an excellent choice for scalable, space-constrained automotive systems. The PCM6020-Q1 is part of a largerPCM6xx0-Q1 device family, available for download atti.com.