CPC7695 Datasheet, PDF (1/25 Pages) Clare, Inc. – Line Card Access Switch

INTEGRATED CIRCUITS DIVISION
CPC7695
Line Card Access Switch
Features
• Improved switch dV/dt immunity of 1500V/s
• Drop-In Replacement for CPC7595
• Replaces CPC7585, and allows removal of
power-up control discrete components
• Enhanced Ringing Test Switch, SW8, breakdown
voltage
• TTL logic level inputs for 3.3V logic interfaces
• Smart logic for power-up / hot-plug state control
• Small 20-pin or 28-pin SOIC Package
• Monolithic IC reliability
• Low, matched, R_ON
• Eliminates the need for zero-cross switching
• Flexible switch timing for transition from Ringing
mode toTalk mode.
• Clean, bounce-free switching
• SLIC tertiary protection via integrated current
limiting, voltage clamping, and thermal shutdown
• 5V operation with power consumption <10.5 mW
• Intelligent battery monitor
Applications
• Standard voice linecards
• Integrated Voice and Data (IVD) linecards
• Central office (CO)
• Digital Loop Carrier (DLC)
• PBX Systems
• Digitally Added Main Line (DAML)
• Fiber in the Loop (FITL)
• Pair Gain System
• Channel Banks
Description
The CPC7695 is a member of IXYS Integrated
Circuits Division’s third-generation Line Card Access
Switch (LCAS) family. This monolithic 10-pole line
card access switch is available in a 20-pin or 28-pin
SOIC package. It provides the necessary functions to
replace three 2-Form-C electromechanical relays on
analog line cards or combined voice and data line
cards found in central office, access, and PBX
equipment. The device contains solid state switches
for tip and ring line break, ringing injection, and test
access. The CPC7695 requires only a +5V supply and
provides stable start-up conditioning during system
power-up and for hot-plug insertion. Once active, the
inputs respond to traditional TTL logic levels, enabling
the CPC7695 to be used with 3.3V-only logic.
Ordering Information
CPC7695 part numbers are specified as shown here:
B - 28-pin SOIC delivered 29/Tube, 1000/Reel
Z - 20-pin SOIC delivered 40/Tube, 1000/Reel
CPC7695 x x xx
TR - Add for Tape & Reel Version
A - With Protection SCR
B - Without Protection SCR
C - With Protection SCR and Additional Test State
T (T ) _TESTin
CHANTEST
Tip
Ring
T (T ) _TESTout
DROPTEST
T 7 _LINE
Secondary
Protection
R_LINE 22
10
8 TRINGING
SW7
X
X ^SW5 X ^SW3
X
SW1
5
X SW9
SW2
X
X SW6 XSW4
X SW10
X
SW8
CPC7695
SCR
Trip
Circuit
+5 V_DC
12 V_DD
6 T_BAT
SLIC
23 R_BAT
17
V_REF
Switch
Control
L
A
T
16
15
Logic
C
H
18
IN_TESTin
IN_RINGING
IN_TESTout
LATCH
R (R ) _TESTout
DROPTEST
R (R ) _TESTin
CHANTEST
19
20 R_RINGING
24
1
28 14 13
300Ω (min.)
F_GND
D_GND
T_SD
V_BAT
V_BAT
RINGING
NOTE 1: Pin assignments are for the 28-pin package.
NOTE 2: Block diagram shown with the optional protection SCR.
DS-CPC7695-R01
www.ixysic.com
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