PCMD3140-Q1
- 4-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
- 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: 0.1-dB resolution
- Phase calibration: 163-ns resolution
- Microphone bias or supply voltage generation
- Voice activity detection (VAD)
- Low-latency signal processing filter selection
- Programmable HPF and biquad digital filters
- I2C control
- 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:
- 2.8mW/channel at 16-kHz sample rate
- 3.6 mW/channel at 48-kHz sample rate
The PCMD3140-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 four 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 the I2C interface. Additionally, the PCMD3140-Q1 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 PCMD3140-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.
PurePath™ 콘솔 3, PCMD3140Q1EVM-PDK GUI 및 기타 설계 리소스를 사용할 수 있습니다. 지금 요청
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | PCMD3140-Q1 Quad-Channel, PDM Input to TDM or I2S Output Converter datasheet (Rev. A) | PDF | HTML | 2022. 7. 12 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
PCMD3140Q1EVM-PDK — TDM 또는 I²S 출력 컨버터에 대한 4채널 PDM 입력용 PCMD3140-Q1 평가 모듈
PCMD3140Q1EVM-PDK 평가 모듈(EVM)은 PCMD3140-Q1 장치의 기능을 테스트하는 데 사용됩니다. PCMD3140-Q1은 PDM 마이크 입력에 대해 최대 4개의 디지털 채널을 동시에 샘플링할 수 있는 고성능, PDM(펄스 밀도 변조) 입력-TDM(시분할 멀티플렉싱) 또는 I²S 출력 컨버터입니다. EVM과 AC-MB의 페어링은 전원, 제어 및 디지털 오디오 데이터를 EVM에 제공하는 유연한 마더보드입니다.
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTE) | 20 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.