PCMD3180
- 8-channel PDM microphones simultaneous conversion
- PDM input to TDM or I2S output converter performance:
- 127dB dynamic range (DR) with high performance 5th order PDM input
- 117dB dynamic range (DR) with high performance 4th order PDM input
- Channel summing mode, DR performance with high performance 4th order PDM input:
- 120dB, 2-channel summing
- 123dB, 4-channel summing
- Programmable PDM clock output :
- 768kHz to 6.144MHz
- Programmable output sample rate (fS) :
- 8kHz to 768kHz
- Programmable channel settings:
- Digital volume control: –100dB to 27dB
- Gain calibration with 0.1dB resolution
- Phase calibration with 163ns 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: 3.3V or 1.8V
- I/O-supply operation: 3.3V or 1.8V
- Power consumption for 1.8V supply:
- 2.9mW/channel at 16kHz sample rate
- 2.5mW/channel at 48kHz sample rate
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 programmable 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 768kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI. 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 3.3V or 1.8V, 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.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | PCMD3180 Octal-Channel, PDM Input to TDM or I2 S Output Converter datasheet (Rev. A) | PDF | HTML | 2026/1/14 | ||
| 技術文章 | 音訊技術的進步有助於人形機器人在真實世界中聽說自如 | PDF | HTML | PDF | HTML | 2026/7/23 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。