The PCMD3180 is a high-performance, pulse-density-modulation (PDM) input to time-division multiplexing (TDM) or I²S output converter that supports simultaneous sampling of up to eight digital channels for the PDM microphone input. The device integrates programable digital volume control, a microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for output sample rates up to 768 kHz. The device supports time-division multiplexing (TDM), I²S, or left-justified (LJ) audio formats, and can be controlled with either the I²C or SPI interface. Additionally, the PCMD3180 supports master and slave mode selection for the audio bus interface operation. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The PCMD3180 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.

• 8-channel PDM microphones simultaneous conversion
• PDM input to TDM or I2S output converter performance:
  • 127-dB dynamic range (DR) with high performance 5th order PDM input
  • 117-dB dynamic range (DR) with high performance 4th order PDM input
• Channel summing mode, DR performance with high performance 4th order PDM input:
  • 120-dB, 2-channel summing
  • 123-dB, 4-channel summing
• Programmable PDM clock output :
  • 768 kHz to 6.144 MHz
• Programmable output sample rate (fS) :
  • 8 kHz to 768 kHz
• Programmable channel settings:
  • Digital volume control: –100 dB to 27 dB
  • Gain calibration with 0.1-dB resolution
  • Phase calibration with 163-ns resolution
• Microphone bias or supply voltage generation
• Low-latency signal processing filter selection
• Programmable HPF and biquad digital filters
• 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
  • Master or slave interface
• Single-supply operation: 3.3 V or 1.8 V
• I/O-supply operation: 3.3 V or 1.8 V
• Power consumption for 1.8-V supply:
  • 2.9 mW/channel at 16-kHz sample rate
  • 2.5 mW/channel at 48-kHz sample rate

• Number of ADC channels
• 8
• Analog inputs
• 0
• Digital audio interface
• I2S, L, TDM
• Control interface
• I2C, SPI
• Sampling rate (Max) (kHz)
• 768
• ADC SNR (Typ) (dB)
• 127
• Rating
• Catalog

PCMD3180的完整型号有：PCMD3180IRTWR、PCMD3180IRTWT，以下是这些产品的关键参数及官网采购报价：

PCMD3180IRTWR，工作温度：-40 to 125，封装：WQFN (RTW)-24，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCMD3180IRTWR的批量USD价格：1.57（1000+）

PCMD3180IRTWT，工作温度：-40 to 125，封装：WQFN (RTW)-24，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCMD3180IRTWT的批量USD价格：1.884（1000+）

PCMD31XX-DRIVERS — PCMD31xx ADC 系列 Linux 驱动程序支持

这些 Linux 驱动程序支持用于 PCMD31xx 器件系列的低功耗音频模数转换器 (ADC)，并且包括 .c 和 .h 文件。点击下方的“Go to third party”按钮将转到 git.kernal.org，您可从中下载相应的驱动程序。

Linux 主线状态
Linux 主线中提供：是
可通过 git.ti.com 获取：不适用

其他文件：
(...)

PCMD31x0 C Source Headers

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