Packaging information
| Package | Pins VQFN (RGE) | 24 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the PCMD3180-Q1
- 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
- Controller or target interface
- Single-supply operation: 3.3V or 1.8V
- I/O-supply operation: 3.3V or 1.8V
- Power consumption for 1.8V supply:
- 2.9mW/channel at 16kHz sample rate
- 2.5mW/channel at 48kHz sample rate
Description for the PCMD3180-Q1
The PCMD3180-Q1 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 interface. Additionally, the PCMD3180-Q1 supports controller and target 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-Q1 is specified from –40°C to 125°C and is offered in a 24-pin WQFN package.