PCM6260-Q1 Series
Automotive 6-ch audio ADC with integrated programmable mic bias, boost and input diagnostics
Manufacturer: Texas Instruments
Catalog
Automotive 6-ch audio ADC with integrated programmable mic 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: –95 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 converter, orWith external high voltage HVDD supplyProgrammable 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:< 20 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: –95 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 converter, orWith external high voltage HVDD supplyProgrammable 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:< 20 mW/channel at 48-kHz
Description
AI
The 4-channel PCM6x40-Q1 (PCM6240-Q1, PCM6340-Q1) and 6-channel PCM6x60-Q1 (PCM6260-Q1, PCM6360-Q1) are high-performance, audio analog-to-digital converters (ADCs) that support analog input signals up to 10 VRMS. The PCM6x40-Q1 and PCM6x60-Q1 (PCM6xx0-Q1) support line and microphone inputs, and allows for both single-ended and differential input configurations. These devices offer an integrated high-voltage, programmable microphone bias, and input diagnostic circuitry that allow direct connection to microphone-based automotive systems with full fault diagnostic capability for direct-coupled inputs. The PCM62x0-Q1 integrate an efficient boost converter to generate a high voltage microphone bias using an external, low-voltage, 3.3-V supply, whereas the PCM63x0-Q1 directly uses an external high-voltage supply (HVDD), which is a readily available supply in the system to generate the high-voltage, programmable microphone bias. The PCM6xx0-Q1 integrate 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 PCM6xx0-Q1 support 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 PCM6xx0-Q1 family an excellent choice for space-constrained automotive systems.
The 4-channel PCM6x40-Q1 (PCM6240-Q1, PCM6340-Q1) and 6-channel PCM6x60-Q1 (PCM6260-Q1, PCM6360-Q1) are high-performance, audio analog-to-digital converters (ADCs) that support analog input signals up to 10 VRMS. The PCM6x40-Q1 and PCM6x60-Q1 (PCM6xx0-Q1) support line and microphone inputs, and allows for both single-ended and differential input configurations. These devices offer an integrated high-voltage, programmable microphone bias, and input diagnostic circuitry that allow direct connection to microphone-based automotive systems with full fault diagnostic capability for direct-coupled inputs. The PCM62x0-Q1 integrate an efficient boost converter to generate a high voltage microphone bias using an external, low-voltage, 3.3-V supply, whereas the PCM63x0-Q1 directly uses an external high-voltage supply (HVDD), which is a readily available supply in the system to generate the high-voltage, programmable microphone bias. The PCM6xx0-Q1 integrate 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 PCM6xx0-Q1 support 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 PCM6xx0-Q1 family an excellent choice for space-constrained automotive systems.
