The official website - Shenzhen Mingjiada Electronic Co., LTD
The PCM6140QRGERQ1 is an automotive grade four-channel, 768kHz Burr-Brown™ audio analog-to-digital converter (ADC) from Texas Instruments with 122dB signal-to-noise ratio (SNR). The following are its core parameters:
Type: Audio
Number of channels: 4
Resolution (bits) : 16 b, 20 b, 24 b, 32 b
Sampling rate (per second) : 768k
Data interfaces: I2C, I2S, TDM
Power supply voltage source: Single power supply
Voltage - Power supply: 1.7V - 1.9V, 3V - 3.6V, 1.65V - 1.95V, 3V - 3.6V
Operating temperature: -40°C to 125°C
Installation type: Surface mount type
Grade: Automotive grade
Qualification: AEC-Q100
Package/Housing: 24-VQFN
Overview
The PCM6140QRGERQ1 audio ADC is a multi-channel high-performance ADC that adopts Burr-Brown™ technology. This ADC features a sampling rate ranging from 8kHz to 768kHz and a signal-to-noise ratio (SNR) of 122dB. The PCM6140QRGERQ1 supports both line and microphone inputs, allowing for single-ended and differential input configurations. These ADCs integrate programmable channel gain, digital volume control, microphone bias voltage, phase-locked loop (PLL), programmable high-pass filter, dual four-channel filter and low-latency filter modes. The PCM6140QRGERQ1 device has passed the AEC automotive application certification.
The PCM6140QRGERQ1 audio ADC integrates high-performance functions and can be powered by either 3.3V or 1.8V. This makes the device highly suitable for audio systems in space-constrained far-field microphone recording applications. The operating temperature range of the PCM6140QRGERQ1 audio ADC is -40°C to 125°C, and it is packaged in a 24-pin VQFN. The PCM6140QRGERQ1 audio ADC is used in microphone array systems, voice-controlled digital assistants, teleconferencing systems, and security and monitoring systems.
Its main features include:
Multi-channel high-performance ADC
4-channel analog microphone or line input
8-channel digital PDM microphone or combination of analog and digital microphones
Performance of ADC circuit and microphone differential input:
Dynamic range (DR)
Support 123dB Dynamic Range Enhancer (DRE)
113dBDRE is disabled
-98dB THD+N
ADC channel summation mode, DR Performance:
116 dB, DRE disabled, 2-channel summation
119dB, DRE disabled, 4-channel summation
ADC input voltage
Differential, 2VRMS full-scale input
Single-ended, 1VRMS full-scale input
The ADC sampling rate (fS) ranges from 8kHz to 768kHz
Programmable channel Settings
Channel gain: 0 dB to 42 dB, step 1 dB
Digital volume control: -100dB to 27dB
Gain calibration with a resolution of 0.1 dB
Phase calibration with a resolution of 163ns
Programmable microphone bias or power supply voltage generation
Selection of low-latency signal processing filters
Programmable high-pass filter (HPF) and dual four-element digital filter
Automatic Gain Controller (AGC
I2C or SPI control
Integrated high-performance audio PLL
Automatic clock divider setting configuration
Audio Serial data interface
Format: TDM, I2S or left-aligned (LJ)
Word length: 16 characters, 20 characters, 24 characters or 32 characters
Controller or target interface
Operate on a single power supply of 3.3V or 1.8V
It operates on a 3.3V or 1.8V I/O power supply
Power consumption under 1.8V AVDD power supply:
8.5mW/channel, 16kHz sampling rate
It is 9.2mW per channel at a sampling rate of 48kHz
The target applications of PCM6140QRGERQ1 are as follows:
Microphone array system
Voice activation of the digital assistant
Teleconference system
Security and monitoring systems
Contact immediately: Visit the official website of mingjiada electronics （www.mjdic.com) to check the inventory of PCM6140QRGERQ1 , or call +86 13410018555 (Mr. Chen) for product purchase quotation.
