CPC1465
SHDSL/ISDN 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 signalling
•
Electronic inductor, breakover, and latch circuits
•
Current limiting and excess power protection circuits
•
ANSI SHDSL and ISDN compatible
•
MLT and SARTS compatible
•
Compatible with portable test sets
•
Excellent linearity
•
Compatible with GlobespanVirata and Conexant
SHDSL transceiver chip set families
•
Small SOIC or DFN Package
•
DFN package 60 percent smaller than SOIC
•
SOIC is pin compatible with Agere LH1465AAE
Description
The CPC1465 is a DC termination IC used in
Single-pair High-speed Digital Subscriber Line
(SHDSL) and Integrated Services Digital Network
subscriber line (ISDN) equipment. It provides a
polarity insensitive DSL loop sealing current DC
termination with a recognizable device signature for
MLT systems. The CPC1465 passes low frequency
ISDN network signalling information via an
inexpensive optocoupler to the NT1’s internal control
logic.
Ordering Information
Part Number Description
DC Termination IC, 16-pin SOIC in tubes,
47/tube
DC Termination IC, 16-pin SOIC tape and reel,
CPC1465DTR
1000/reel
DC Termination IC, 16-pin DFN in tubes,
CPC1465M
52/tube
DC Termination IC, 16-pin DFN tape and reel,
CPC1465MTR
1000/reel
CPC1465D
Applications
•
•
•
•
•
•
Router and bridge customer premises equipment
Leased line equipment
T1/E1 network line cards and repeaters
Network Termination 1 (NT1) equipment
Mechanized Loop Test (MLT) networks
Switched Access Remote Test System (SARTS)
networks
Figure 1. CPC1465 Typical 2-Wire DC Termination Application
CPC1465
1
2
3
PR+
NC
NC
TIP
RING
NC
NC
PR-
Bridge
Rectifier
TC
16
15
14
13
12
11
10
9
1
μ
F
dc
Blocking
Capacitor
Electronic
Inductor,
Breakover,
Latch, and
Opto Driver
NC
NC
RS
PD
NC
NC
TIP
4
5
6
68.1Ω
1%
1/4W
Transceiver
RING
2.2k
Ω
5%
4W
7
8
Current Limit
and Excess
Power Protection
COM
NOTE:
Pinout is for the SOIC package
CPC1303
(5kV
rms
Isolation)
or
CPC1001N
(1500V
rms
Isolation)
V
CC
75kΩ
Pb
RoHS
2002/95/EC
e
3
1
2
4
3
Digital
Control
Circuitr
DS-CPC1465 - R02
www.clare.com
1
CLARE [ CLARE, INC. ]
