CPC1465
SHDSL/ISDN DC Termination IC
Features
Description
• Meets wetting (sealing) current requirements per
ITU-T G.991.2
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.
• 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
Ordering Information
Part Number Description
DC Termination IC, 16-pin SOIC in tubes,
CPC1465D
47/tube
Applications
DC Termination IC, 16-pin SOIC tape and reel,
CPC1465DTR
1000/reel
• Router and bridge customer premises equipment
• Leased line equipment
DC Termination IC, 16-pin DFN in tubes,
CPC1465M
52/tube
• T1/E1 network line cards and repeaters
• Network Termination 1 (NT1) equipment
• Mechanized Loop Test (MLT) networks
• Switched Access Remote Test System (SARTS)
networks
DC Termination IC, 16-pin DFN tape and reel,
CPC1465MTR
1000/reel
Figure 1. CPC1465 Typical 2-Wire DC Termination Application
dc
CPC1465
Blocking
Capacitor
1μF
1
2
3
4
5
6
7
8
PR+
NC
16
15
14
13
12
11
10
9
TC
NC
Electronic
Inductor,
Breakover,
Latch, and
Opto Driver
NC
NC
68.1Ω
1%
1/4W
TIP
TIP
RING
NC
RS
Bridge
Rectifier
Transceiver
PD
NC
RING
NC
NC
2.2kΩ
5%
4W
Current Limit
and Excess
Power Protection
PR-
COM
NOTE: Pinout is for the SOIC package
CPC1303
(5kV Isolation)
rms or
VCC
CPC1001N
(1500Vrms Isolation)
75kΩ
Digital
Control
Circuitr
1
4
RoHS
2002/95/EC
Pb
3
2
e3
DS-CPC1465 - R02
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