参数资料
型号: SI1120-A-GM
厂商: Silicon Laboratories Inc
文件页数: 16/20页
文件大小: 0K
描述: IC PROXIMITY/AMBIENT SEN 8ODFN
标准包装: 1
检测距离: 19.7"(50cm)1.6'
传感器类型: 红外线
物体感测: 非金属
响应频率: 250Hz
主体材料: *
屏蔽: 无屏蔽
电源电压: 2.2 V ~ 3.7 V
输出类型: PWM
端子类型: PC 引脚
封装/外壳: *
Si11 20
3. Pin Descriptions—Si1120 (ODFN)
PRX
TXGD
TXO
STX
1
2
3
4
8
7
6
5
VSS
MD
SC
VDD
Figure 17. Pin Configurations
Table 5. Pin Descriptions
16
Pin
1
2
3
4
5
6
7
8
Name
PRX
TXGD
TXO
STX
V DD
SC
MD
VSS
Description
PWM Output.
Outputs a low-going PWM pulse proportional to signal.
TXGD.
Power ground (LED and PRX driver ground return). Must be connected to VSS.
Transmit Output.
Normally connected to an infrared LED cathode. The output current is a programmable con-
stant current sink. This output can be allowed to saturate, and output current can be limited by
the addition of a resistor in series with the LED.
Strobe.
Initiates PS or ALS measurement. Also used as data input for the M2 internal mode control
flip-flop.
Power Supply.
2.2 to 3.7 V voltage source.
Shutdown/Clock.
When high, shuts down the part. When enabling the part, the low-going edge clocks the states
of STX and MD into mode-control D flip-flops M2 and M3.
Mode Control.
Controls two mode control bits, one directly and the other indirectly, by providing the data input
for the M3 internal mode control flip-flop.
VSS.
Ground (analog ground). Must be connected to TXGD.
Rev. 1.0
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