LITELINK
®
III Phone Line Interface IC (DAA)
CPC5620/CPC5621
Features
•
Superior voice solution with low noise, excellent
part-to-part gain accuracy
•
3 kV
rms
line isolation
•
Transmit power of up to +10 dBm into 600
Ω
•
Data access arrangement (DAA) solution for
modems at speeds up to V.92
•
3.3 or 5 V power supply operation
•
Caller ID signal reception function
•
Easy interface with modem ICs and voice CODECs
•
Worldwide dial-up telephone network compatibility
•
CPC5620 and CPC5621 can be used in circuits that
comply with the requirements of TIA/EIA/IS-968
(FCC part 68), UL1950, UL60950, EN/IEC 60950-1
Supplementary Isolation compliant, EN55022B,
CISPR22B, EN55024, and TBR-21
•
Line-side circuit powered from telephone line
•
Compared to other silicon DAA solutions, LITELINK:
-
Uses fewer passive components
-
Takes up less printed-circuit board space
-
Uses less telephone line power
-
Offers simplified operation
-
Is a single-IC solution
Description
LITELINK III is a single-package silicon phone line
interface (PLI) DAA used in voice and data
communication applications to make connections
between low-voltage equipment and high-voltage
telephone networks.
LITELINK provides a high-voltage isolation barrier, AC
and DC phone line terminations, switch hook, 2-wire to
4-wire hybrid, ring detection, and on-hook signal
detection. LITELINK can be used in both differential
and single-ended signal applications.
LITELINK uses on-chip optical components and a few
inexpensive external components to form a complete
voice or high-speed data phone line interface.
LITELINK eliminates the need for large isolation
transformers or capacitors used in other interface
configurations. It includes the required high-voltage
isolation barrier in a surface-mount SOIC package.
The CPC5620 (half-wave ringing detect) and
CPC5621 (full-wave ringing detect) build upon Clare’s
LITELINK product line, with improved insertion loss
control, improved noise performance, and lower
minimum current draw from the phone line. The new
mode pin enables worldwide implementation.
Applications
•
•
•
•
•
•
•
Computer telephony and gateways, such as VoIP
PBXs
Satellite and cable set-top boxes
V.92 (and other standard) modems
Fax machines
Voicemail systems
Embedded modems for POS terminals, automated
banking, remote metering, vending machines,
security, and surveillance
Ordering Information
Part Number
CPC5620A
CPC5620ATR
CPC5621A
CPC5621ATR
Description
32-pin SOIC, half-wave ring detect, 50/Tube
32-pin SOIC, half-wave ring detect, 1000/Reel
32-pin SOIC, full-wave ring detect, 50/Tube
32-pin SOIC, full-wave ring detect, 1000/Reel
Figure 1. CPC5620/CPC5621 Block Diagram
TIP+
Isolation Barrier
Transmit
Isolation
Amplifier
Tx+
Tx-
Transmit
Diff.
Amplifier
Transconductance
Stage
2-4
Wire
Hybrid
AC/DC Termination
Hookswitch
VI
Slope Control
AC Impedance Control
Current Limit Control
MODE
OH
Vref
Gain Trim
Vref
Gain Trim
Receive
Isolation
Amplifier
Rx+
Rx-
Receive
Diff.
Amplifier
CID/
RING
MUX
C
SNOOP
Snoop Amplifier
C
SNOOP
R
SNOOP
R
SNOOP
3kV
rms
Isolation
RING
CID
RING-
Pb
RoHS
2002/95/EC
e
3
DS-CPC5620/CPC5621 - R04
www.clare.com
1
CLARE [ CLARE, INC. ]
