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CPC7508B PDF预览

CPC7508B

更新时间: 2024-11-24 06:48:27
品牌 Logo 应用领域
CLARE 电信集成电路光电二极管
页数 文件大小 规格书
14页 393K
描述
Line Card Access Switch

CPC7508B 数据手册

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CPC7508  
Line Card Access Switch  
Features  
Description  
TTL logic level inputs for 3.3V logic interfaces  
Smart logic for power up / hot plug state control  
Monolithic IC reliability  
The CPC7508 is a member of Clare’s next generation  
Line Card Access Switch family. When used with  
ringing SLICs it provides the necessary functions to  
replace the two 2-Form-C electromechanical test  
relays used in contemporary Fiber To The Home  
(FTTH) and Optical Network Unit (ONU) deployments  
as well as Voice over IP (VoIP) telephony terminals.  
Low matched R  
Clean, bounce-free switching  
Tertiary protection consisting of integrated current  
limiting and thermal shutdown for SLIC protection  
+12.5V operation with power consumption 25mW  
Latched logic level inputs, no external drive circuitry  
required  
ON  
Solid state switches provide the mechanism for tip and  
ring line break, drop test, and channel test while  
requiring only a single +12V supply for operation.  
Interface compatibility with 3.3V or 5V logic for switch  
state control is provided by the TTL logic level inputs.  
Small 16-pin SOIC  
The CPC7508 is designed for fiber access units where  
EMR’s are used for test access and line monitoring  
functions but solid-state switches are desired due to  
reduced operating noise, lower power consumption  
and longer lifetimes.  
Applications  
Fiber to the Home (FTTH)  
Fiber in the Loop (FITL)  
VoIP Gateways  
PBX Systems  
Digitally Added Main Line (DAML)  
Hybrid Fiber Coax (HFC)  
This monolithic 8-pole solid-state switch is available in  
a 16-pin SOIC package.  
Ordering Information  
Part Number Description  
CPC7508B  
8-pole LCAS, 16-pin SOIC in tubes (50/tube)  
CPC7508BTR 8-pole LCAS, 16-pin SOIC in reels (1000/reel)  
Figure 1. CPC7508 Block Diagram  
TTEST_IN (TCHAN_TEST  
)
CPC7508  
+12VDC  
TTEST_OUT (TDROP_TEST  
)
V
1
8
7
DD  
X
SW7  
SW3  
SW5  
X
X
X
X
Tip  
TBAT  
TLINE  
5
6
X
SW1  
Secondary  
Protection  
Ringing  
SLIC  
Ring  
SW2  
X
SW4  
R
RBAT  
12  
LINE 11  
16  
15  
14  
13  
SW6  
INA  
L
A
T
C
H
Switch  
Control  
Logic  
SW8  
X
INB  
INC  
LATCH  
10  
9
2
3
RTEST_OUT (RDROP_TEST  
RTEST_IN (RCHAN_TEST  
)
TSD  
GND  
)
RoHS  
2002/95/EC  
Pb  
e3  
DS-CPC7508 - R04  
www.clare.com  
1

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