DS-CPC1466 - R00B

www.clare.com

1

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

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

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.

Ordering Information

PR+

NC

NC

TIP

RING

NC

NC

PR-

TC

NC

NC

RS

PD

NC

NC

COM

Current Limit

and Excess

Power Protection

Electronic

Inductor,

Breakover,

Latch, and

Opto Driver

Bridge

Rectifier

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

Part Number Description

CPC1466D

DC Termination IC, 16-pin SOIC in tubes,

47/tube

CPC1466DTR

DC Termination IC, 16-pin SOIC tape and reel,

1000/reel

CPC1466M

DC Termination IC, 16-pin MLP in tubes,

52/tube

CPC1466MTR

DC Termination IC, 16-pin MLP tape and reel,

1000/reel