CPC1466
Broadband ADSL/VDSL DC Termination IC
Features
•
Meets wetting (sealing) current requirements per
ITU-T G.991.2
•
Integrated bridge rectifier for polarity correction
•
Uses inexpensive opto-coupler for DC sealing
current monitoring
•
Electronic inductor, breakover, and latch circuits
•
Current limiting and excess power protection circuits
•
ADSL/VDSL compatible with low-pass filter network
•
MLT and SARTS compatible
•
Compatible with portable test sets
•
Small SOIC or Micro-Leadframe Package (MLP)
•
MLP package 60 percent smaller than SOIC
Description
The CPC1466 is a DC Termination IC for broadband
ADSL/VDSL applications. The high-voltage,
monolithic device provides a path for DC wetting
(sealing) current in customer premises equipment
(CPE) to eliminate phone line corrosion on DSL
twisted-pair copper lines without telephone voice
services (i.e. only broadband services).
Internally, a bridge rectifier provides a
polarity-insensitive DC termination for DSL loop
sealing current. The IC includes an electronic inductor,
break-over and latch circuits, current limit and excess
power protection. A sealing current detect output
provides the means to monitor the loop for the
presence of sealing current in the loop.
The CPC1466 is manufactured in Clare’s high voltage
BCDMOS process that is used extensively in
telephony applications worldwide.
Applications
•
•
•
•
•
ADSL/VDSL broadband modems
Router and bridge customer premises equipment
Leased line equipment
Mechanized Loop Test (MLT) networks
Switched Access Remote Test System (SARTS)
networks
Figure 1. CPC1466 Block Diagram
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DS-CPC1466 - R00B
PR
EL
IM
IN
AR
Y
Ordering Information
Part Number Description
CPC1466D
PR+
NC
TC
16
15
14
13
12
11
10
9
TIP
NC
Electronic
Inductor,
Breakover,
Latch, and
Opto Driver
NC
NC
RS
DC Termination IC, 16-pin SOIC in tubes,
47/tube
DC Termination IC, 16-pin SOIC tape and reel,
CPC1466DTR
1000/reel
DC Termination IC, 16-pin MLP in tubes,
CPC1466M
52/tube
DC Termination IC, 16-pin MLP tape and reel,
CPC1466MTR
1000/reel
NC
Bridge
Rectifier
NC
PD
RING
NC
PR-
NC
Current Limit
and Excess
Power Protection
COM
www.clare.com
1
CLARE [ CLARE, INC. ]
