CPC1466
Broadband ADSL/VDSL DC Termination IC
Features
Description
• Meets wetting (sealing) current requirements per
ITU-T G.991.2
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).
• 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
Internally, a bridge rectifier provides a
• Compatible with portable test sets
• Small SOIC or Micro-Leadframe Package (MLP)
• MLP package 60 percent smaller than SOIC
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.
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
The CPC1466 is manufactured in Clare’s high voltage
BCDMOS process that is used extensively in
telephony applications worldwide.
Ordering Information
Figure 1. CPC1466 Block Diagram
Part Number Description
DC Termination IC, 16-pin SOIC in tubes,
CPC1466D
47/tube
1
2
3
4
5
6
7
8
PR+
16
15
14
13
12
11
10
9
TC
NC
DC Termination IC, 16-pin SOIC tape and reel,
CPC1466DTR
1000/reel
Electronic
Inductor,
NC
TIP
NC
DC Termination IC, 16-pin MLP in tubes,
Breakover,
Latch, and
Opto Driver
CPC1466M
52/tube
NC
RS
DC Termination IC, 16-pin MLP tape and reel,
CPC1466MTR
1000/reel
Bridge
Rectifier
NC
PD
NC
RING
NC
NC
Current Limit
and Excess
Power Protection
PR-
COM
DS-CPC1466 - R00B
www.clare.com
1