Dual voice region NR / EC Microphone
A. Transducer: MEMS
B. Operating Temp Range: -40℃～ +85℃
C. Storage temp range: -40℃-～+90℃
D. Output impedance Max: 1k ohms
E. Sensitivity: -10±3dB @F=1KHZ,94dBSPL
F. Direction: Uni-directional
G. Frequency response: 100(+/-10%)~10,000(+/-1%)HZ
H. Operation voltage: 5V~12.0V±10%
I. Working current Min: 100mA Max:300mA
J. S/N ratio: Min 60dB @ F= 1kHz, 94dBSPL(A)
K. Feedback: MAX IN >1V Vpp
L. THD: ＜1% @F=1KHZ,94dBSPL
M. MAX input s.p.l: ＞110dB
N. MAX feedback1 /feedback2 input: 0.18Vmrs
Share to:
| PIN1 | Feedback 1 |  |
| PIN2 | MIC_OUT1 | |
| PIN3 | GND | |
| PIN4 | IIC_CLK | |
| PIN5 | Feedback 2 | |
| PIN6 | MIC_OUT2 | |
| PIN7 | VCC | |
| PIN8 | IIC_DATA | |
| PIN No. | Items | DRAWING |
Dimension
Block diagram
I2C Speed (100kHz).
Function Description
| 从设备地址 | ACK | 工作模式编号 | 工作模式定义 |
| 0x44x46 | 0X04 | 0X00 | 16K VR |
| 0x44x46 | 0X04 | 0X01 | VR(MUTI-ZONE) |
| 0x44x46 | 0X04 | 0X02 | 8K CM (BT) |
| 0x44x46 | 0X04 | 0X03 | 8K CM (Carplay) |
| 0x44x46 | 0X04 | 0X04 | 8K CM (Carplay) |
| 0x44x46 | 0X04 | 0X05 | 16K CM(Carplay) |
| 0x44x46 | 0X04 | 0X06 | 24K-SIRI(Carplay) |
| 0x44x46 | 0X04 | 0X07 | 24K-FACE TIME(Carplay) |
Feedback circuit.(not include in the Microphone module, suggested to add it in GPS section)
