ZL49200 Datasheet, PDF (1/11 Pages) Zarlink Semiconductor Inc – Dual Channel SLIC

ZL49200
Dual Channel SLIC
Data Sheet
Features
• Transformerless 2 W to 4 W conversion
• Controls battery feed to line
• Off-hook and dial pulse detection
• Ring ground over-current protection
• Programmable constant current feed
• -30 V to -72 V battery operation
• Relay and line driver electronics on board
Applications
• PABX/ONS/OPS
• Key Telephone Systems
• Integrated Access Devices
• SOHO and Home Gateway
December 2005
Ordering Information
ZL49200MDC 38 Pin SIL Trays
-40°C to +85°C
Description
The Zarlink ZL49200 Dual SLIC hybrid provides an
interface between a switching system and a subscriber
loop with 600 Ω impedance. The functions provided by
each SLIC include battery feed, 2 W to 4 W
conversion, off-hook and dial pulse detection. All driver
electronics are included on the hybrid in order to
minimize the number of external components required
by the user.
Loop Length determination table provided on page 9.
VBAT
VDD VEE GND
TIP
RING
Audio Gain & Network
VX
Tip Drive
Balance circuit
Controller
VR
Line Sense
2W to 4W
Conversion & Line
Impedance
Over-Current
Protection circuit
Ring Drive
Controller
Loop Supervision
RF RV
C1
C7
5v External Electro-
mechanical relay,
DPDT/2 Form C
C7 100nF, 20%
C6 1µF, 20%, 16V _{Ringing Signal}
Relay
Driver
RLYD
C6
GND
VLC
SHK
VRLY
RLYC
Figure 1 - Dual Channel SLIC Single Channel Schematic Diagram
1
Zarlink Semiconductor Inc.
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Copyright 2004-2005, Zarlink Semiconductor Inc. All Rights Reserved.