PCM6140-Q1
- Multichannel high-performance ADC:
- 4-channel analog microphones or line-in,
- 8-channel digital PDM microphones, or
- Combination of analog and digital microphones
- ADC line and microphone differential input performance:
- Dynamic range (DR):
- 123dB, dynamic range enhancer (DRE) enabled
- 113dB, DRE disabled
- THD+N: –98dB
- Dynamic range (DR):
- ADC channel summing mode, DR performance:
- 116dB, DRE disabled, 2-channel summing
- 119dB, DRE disabled, 4-channel summing
- ADC input voltage:
- Differential, 2VRMS full-scale inputs
- Single-ended, 1VRMS full-scale inputs
- ADC sample rate (fS) = 8kHz to 768kHz
- Programmable channel settings:
- Channel gain: 0dB to 42dB, 1dB steps
- Digital volume control: –100dB to 27dB
- Gain calibration with 0.1dB resolution
- Phase calibration with 163ns resolution
- Programmable microphone bias or supply voltage generation
- Low-latency signal processing filter selection
- Programmable HPF and biquad digital filters
- Automatic gain controller (AGC)
- I2C or SPI controls
- Integrated high-performance audio PLL
- Automatic clock divider setting configurations
- Audio serial data interface:
- Format: TDM, I2S, or left-justified (LJ)
- Word length: 16 bits, 20 bits, 24 bits, or 32 bits
- Controller or target interface
- Single-supply operation: 3.3V or 1.8V
- I/O-supply operation: 3.3V or 1.8V
- Power consumption for 1.8-V AVDD supply:
- 8.5mW/channel at 16kHz sample rate
- 9.2mW/channel at 48kHz sample rate
The PCM6140-Q1 is a Burr-Brown™ high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channelsor eight digital channels for the pulse density modulation (PDM) microphone input. The device supports line and microphone inputs, and allows for both single-ended and differential input configurations. The device integrates programable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768kHz, and allows for sample rates up to 192kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3V or 1.8V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.
The PCM6140-Q1 is specified from –40°C to +125°C, and is offered in a 24-pin VQFN package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PCM6140-Q1 Quad-Channel, 768kHz, Burr-BrownTM Audio ADC datasheet | PDF | HTML | 2024年 3月 25日 |
| Application note | TLV320ADCx140/PCMx140-Q1 Programmable Biquad Filter Configuration and Applications (Rev. B) | PDF | HTML | 2023年 12月 12日 | |
| Application note | Using the Dynamic Range Enhancer in TLV320ADC5140/6140 and PCM5140-Q1/PCM6140-Q1 (Rev. A) | PDF | HTML | 2023年 12月 11日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| VQFN (RGE) | 24 | 檢視選項 |
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