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MT88E45BN1 参数 Datasheet PDF下载

MT88E45BN1图片预览
型号: MT88E45BN1
PDF下载: 下载PDF文件 查看货源
内容描述: 4线主叫号码识别电路2 ( 4线CNIC2 ) [4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2)]
分类和应用: 电信集成电路电信电路电话电路光电二极管
文件页数/大小: 30 页 / 525 K
品牌: ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
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MT88E45  
Data Sheet  
Example:  
For a gain of -3.5 dB, Av=10-3.5/20 = 0.668  
R7-3.5dB= 464 K x 0.668 = 309K9, the closest standard resistor value is 309 K.  
Av is now 309 K/464 K = 0.666  
R5-3.5dB= 53K6 x 0.666 = 35K7, the closest standard resistor value is 35K7.  
Therefore R6-3.5dB is calculated to be 40K4, the closest standard resistor value is 40K2.  
Vdd  
Vdd  
Microcontroller  
Interrupt Source 1  
Resistor (R2)  
Resistor (R1)  
INT1  
D1  
(Open Drain)  
R1 can be opened and  
D1 shorted if the  
microcontroller does not  
read the INT1 pin.  
Interrupt Source 2  
INT2  
(CMOS)  
INT(input)  
MT88E45B  
DR/STD  
(CMOS)  
Input Port Bit  
Figure 9 - Application Circuit: Multiple Interrupt Source  
17  
Zarlink Semiconductor Inc.  
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