CPC5622
3kV
RMS
Isolation
LITELINK
®
III Phone Line Interface IC (DAA)
Features
•
Superior voice solution with low noise and excellent
part-to-part gain accuracy
•
3 kV
RMS
line isolation
•
Simultaneous ringing detection and CID monitoring
for worldwide applications
•
Provides both full-wave ringing detect and half-wave
ringing detect for maximum versatility
•
Transmit power of up to +10 dBm into 600
Ω
•
Data access arrangement (DAA) solution for modem
speeds up to V.92
•
3.3V or 5 V power supply operation
•
Easy interface with modem ICs and voice CODECs
•
Worldwide dial-up telephone network compatibility
•
CPC5622 can be used in circuits that comply with
the requirements of TIA/EIA/IS-968 (FCC part 68),
UL60950 (UL1950), EN60950, IEC60950,
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
-
Is a single-IC solution
•
Embedded modems for POS terminals, automated
banking, remote metering, vending machines,
security, and surveillance
Description
LITELINK III is a single-package silicon phone line
interface (PLI) DAA used in voice and data
communication applications to make connections
between host equipment and telephone networks.
LITELINK uses on-chip optical components and a few
inexpensive external components to form the required
high voltage isolation barrier. LITELINK eliminates the
need for large isolation transformers or capacitors
used in other phone line interface configurations.
LITELINK also provides AC and DC phone line
terminations, switchhook, 2-wire to 4-wire hybrid,
ringing detection, and full time receive on-hook
transmission capability.
The CPC5622 is a member of and builds upon Clare’s
third generation of LITELINK products with improved
insertion loss performance and lower minimum current
draw from the phone line. The CPC5622 version of
LITELINK III provides concurrent ringing detection and
CID monitoring for world wide applications. Both
half-wave and full-wave ringing detection are provided
for maximum versatility.
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
Ordering Information
Part Number
CPC5622A
CPC5622ATR
Description
32-pin Phone Line Interface, 50/tube
32-pin Phone Line Interface, tape and reel,
1000/reel
Figure 1. CPC5622 Block Diagram
Isolation Barrier
Tx+
Tx-
Transmit
Diff.
Amplifier
Transmit
Isolation
Amplifier
TIP
MODE
Tx.
Gain
Trim
OH
Rx.
Gain
Trim
Transconductance
Stage
2-4 Wire Hybrid
AC/DC Termination
Hook Switch
Receive
Isolation
Amplifier
RING
Rx+
Rx-
Receive
Diff.
Amplifier
Ringing Detect Outputs
Rx MUX
&
Ringing Det.
Snoop
Amplifier
C
SNOOP
C
SNOOP
RING
RING2
Half Wave
Full Wave
R
SNOOP
R
SNOOP
DS-CPC5622 - Rev. 1.0
www.clare.com
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