User's Manual

公司：深圳芯中芯科技有限公司 电话 ：[phone]，FAX: [phone]
地址：深圳市宝安西乡大道德信商务中心 701 公司网址：www.c-chip.com.cn
5
31
P16
Digital
Programming input/output
32
P01
Digital
Programming input/output
33
GND3
Power
GND
34
GND4
Power
GND
Applicationcircuitdiagram
Matters needing attention:
The 1 antenna side not of metal
2 box can not be large shield
3 should be placed near the electrolytic capacitor in the PAD modules.
The 4 common end of noise inhibition, the need to increase the
operational amplifier in front amplifier or master to eliminate
interference
5 main control, power amplifier, the module must be well grounded,
don't allow the island or closed loop, module grounding
And the main control and power amplifier ground potential difference
between shall not be greater than 1mV.