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MT8880CSR1 参数 Datasheet PDF下载

MT8880CSR1图片预览
型号: MT8880CSR1
PDF下载: 下载PDF文件 查看货源
内容描述: [DTMF Signaling Circuit, CMOS, PDSO20, 0.300 INCH, LEAD FREE, MS-013AC, SOIC-20]
分类和应用: 电信光电二极管电信集成电路
文件页数/大小: 28 页 / 611 K
品牌: ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
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MT8880C  
Data Sheet  
VDD  
MT8880C  
C3  
R4  
VDD  
IN+  
C1  
R1  
C2  
St/GT  
ESt  
DTMF/CP  
INPUT  
IN-  
GS  
R3  
R2  
D3  
VRef  
VSS  
OSC1  
OSC2  
TONE  
R/W  
CS  
D2  
D1  
R5  
D0  
X-tal  
RL  
To µP  
or µC  
IRQ/CP  
Φ2  
DTMF  
OUTPUT  
C4  
RS0  
Notes:  
R1, R2 = 100 k1%  
R3 = 374 k1%  
R4 = 3.3 k10%  
R5 = 4.7 M10%  
RL = 10 k (min.)  
* Microprocessor based systems can inject undesirable noise into  
the supply rails. The performance of the MT8880 can be optimized  
by keeping noise on the supply rails to a minimum. The decoupling  
capacitor (C3) should be connected close to the device and ground  
loops should be avoided.  
C1 = 100 nF 5%  
C2 = 100 nF 5%  
C3 = 100 nF 10%*  
C4 = 10 nF 10%  
X-tal = 3.579545 MHz  
Figure 13 - Application Circuit (Single-Ended Input)  
15  
Zarlink Semiconductor Inc.