CPC75282 Datasheet, PDF (1/19 Pages) Clare, Inc. – Line Card Access Switch

CPC75282
Line Card Access Switch
Features
• Improved Switch dV/dt Immunity of 1500V/μs
• Smart logic for power-up/hot-plug state control
• Small 44-pin TQFP Package
• Monolithic IC reliability
• Low, matched R_ON
• Eliminates the need for zero-cross switching
• Flexible switch timing to transition from ringing mode
to talk mode.
• Clean, bounce-free switching
• Tertiary protection consisting of integrated current
limiting, voltage clamping, and thermal shutdown for
SLIC protection
• 5V operation with very low power consumption
• Intelligent battery monitor
• Latched logic-level inputs, no external drive circuitry
required
Applications
• VoIP Gateways
• Central Office (CO)
• Digital Loop Carrier (DLC)
• PBX Systems
• Digitally Added Main Line (DAML)
• Hybrid Fiber Coax (HFC)
• Fiber In The Loop (FITL)
• Pair Gain System
• Channel Banks
Figure 1. CPC75282 Block Diagram
T_TEST1 37
T_RINGING1 38
SW3 X
T_LINE1 36
R_LINE1 34
SW4 X
R_RINGING1 30
R_TEST1 33
X SW5
X
SW1
SW2
X
X SW6
1/2 - CPC75282
(Channel 1)
Battery
Monitor
CH1
CH2
Switch
Control
Logic
27
F_GND1
8,26
V_BAT
24
CFG
Description
The CPC75282 Dual Line Card Access Switch
(LCAS), a member of Clare’s next generation Line
Card Access Switch family, is a monolithic solid state
device that provides the switching functionality of four
2-Form-C relays in a single, small, economical
package.
The CPC75282 Dual LCAS device is designed to
provide ringing and test access to the telephone loop
in Central Office, Digitally Added Main Line, Private
Branch Exchange, Digital Loop Carrier, and Hybrid
Fiber Coax/Fiber-In-The-Loop analog line card
applications. Test access switches provide access to
the telephone loop for line (drop) test or message
waiting in the PBX application.
Ordering Information
Part #
Description
CPC75282KATR 44-Pin TQFP, Tape & Reel (1000/Reel)
V_DD
9,25
L
A
T
C
H
11,23
D_GND
21 T_BAT1
22 R_BAT1
14 P1
15 P2
16 P3
17 LATCH₁
18 LATCH₂
28 TSD₁
6 TSD₂
19 OFF₁
20 OFF₂
Pb
RoHS
2002/95/EC
e3
DS-CPC75282 - R00D
www.clare.com
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