Product specifications
The CDPB22-002 is an integrated environmental sensor unit. The unit combines digital high accuracy pressure sensor and high SNR digital microphone.
The pressure module highlights a capacitive sensing element, 32-bit results and FIFO output, which bring in high accuracy, ultra high precision during temperature changes and very low power consumption. Its I2C interface allows for easy system integration with microcontroller.
The microphone module features high sensitivity and high SNR with very low power consumption. It’s PDM (pulse density modulated) output allows for two microphones to be time multiplexed on a single data line using a single clock.
Key Features:
- Package dimensions: 10-pin LGA, 4.0 mm x 2.0 mm x 0.95 mm
- Pb-free, halogen-free and RoHS compliant
- MSL 1
Pressure sensor:
- Supply voltage: P-VDD: 1.7 – 3.6 V
- Operation range: Pressure: 300 … 1100 hPa
- Temperature: -40 … +85 °C
- Pressure sensor accuracy: type. ± 0.06 hPa (or ±0.5 m) (relative), ±1 hPa (absolute)
- Temperature accuracy: type.± 0.5°C（@25°C）
- Pressure temperature sensitivity: type.± 0.5Pa/K
- Measurement time: Typical: 27.6 ms. Minimum: 3.6 ms
- Average current consumption: High precision: 40 μA, Low power: 3 μA, Standby: <1 μA
- I2C interface (up to 3.4 MHz), Embedded 24-bit ADC
- FIFO: Stores latest 32 pressure or temperature measurements
Microphone:
- Supply voltage: 1.6...3.6V (M-VDD)
- Low power: 230μA Current @ low power mode
- High sensitivity: -26dBFS
- High SNR : 65dB
- PDM Digital Interface
Typical Applications:
- Enhancement of GPS navigation (dead-reckoning, slope detection, etc.)
- In- and out-door navigation
- Vertical velocity indication (rise/sink speed)
- Digital Audio output
- Goermicro product -
