CPC7583
Line Card Access Switch
INTEGRATED
C
IRCUITS
D
IVISION
Features
Description
• Monolithic IC reliability
• Low, matched, R
The CPC7583 is a monolithic 10-pole line card access
switch in a 28-pin SOIC package. It provides the
necessary functions to replace three 2-Form-C
electromechanical relays on analog line cards and
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/ringing return, and test access. The
CPC7583 requires only a +5 V supply and offers
break-before-make or make-before-break switch
operation.
ON
• Eliminates the need for zero-cross switching
• Flexible switch timing for transition from ringing
mode to talk 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
• Logic-level inputs, no external drive circuitry required
• Compatible with Legerity 7583/8583 family
• Small 28-pin SOIC
Ordering Information
Applications
Part #
Description
28-Pin SOIC, 29/Tube
• Central office (CO)
CPC7583BA
• Digital Loop Carrier (DLC)
• PBX Systems
CPC7583BATR 28-Pin SOIC, 1000/Reel
• Digitally Added Main Line (DAML)
• Hybrid Fiber Coax (HFC)
• Fiber in the Loop (FITL)
• Pair Gain System
Not for New Designs
• Channel Banks
(TCHANTEST
)
TTESTIN
+5 Vdc
12 VDD
(TDROPTEST
)
TTESTOUT
TRING
10
8
5
SXW7
CPC7583
XSW5
SW3
SW9
Tip
X
X
6 TBAT
TLINE
7
X
SW1
Secondary
Protection
SLIC
Ring
SW2
X
SW4
R
23
17
16
15
RLINE
22
BAT
INTESTIN
L
A
T
C
H
SW10
SW6
X
X
X
SCR
and
Trip
Switch
Control
Logic
INRINGING
INTESTOUT
VREF
X
Circuit
18
LATCH
SW8
19
20
300Ω (min.)
28
VBAT
13
14
DGND
24
1
R
TESTOUT (RDROPTEST)
FGND
TSD
RINGING
VBAT
R
TESTIN (RCHANTEST
)
Pb
e3
DS-CPC7583-R07
www.ixysic.com
1