CPC5622
LITELINK® III
Phone Line Interface IC (DAA)
INTEGRATED
C
IRCUITS
D
IVISION
Features
Description
• Superior voice solution with low noise and excellent
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.
part-to-part gain accuracy
• 3 kV
line isolation
RMS
• 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
• Data access arrangement (DAA) solution for modem
speeds up to V.92
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.
• 3.3V or 5 V power supply operation
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.
• 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), EN/IEC 60950-1
Supplementary Isolation Compliant, 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
The CPC5622 is a member of, and builds upon, IXYS
Integrated Circuits Division’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.
- Takes up less printed-circuit board space
- Uses less telephone line power
- Is a single-IC solution
Applications
• Computer telephony and gateways, such as VoIP
• PBXs
Ordering Information
Part Number Description
• Satellite and cable set-top boxes
• V.92 (and other standard) modems
• Fax machines
CPC5622A
32-Pin SOIC Phone Line Interface, 50/tube
32-Pin SOIC Phone Line Interface,
tape and reel, 1000/reel
CPC5622ATR
• Voicemail systems
• Embedded modems for POS terminals, automated
banking, remote metering, vending machines,
security, and surveillance
CPC5622 Block Diagram
Isolation Barrier
Tx+
Tx-
Transmit
Diff.
Amplifier
TIP
Transmit
Isolation
Tx.
MODE
OH
Amplifier
Gain
Transconductance
Stage
2-4 Wire Hybrid
AC/DC Termination
Hook Switch
Trim
Rx.
Gain
Trim
Receive
Isolation
Amplifier
RING
Rx+
Rx-
Receive
Diff.
Amplifier
Rx Amp
&
Ringing Det.
Ringing Detect Outputs
Half Wave
CSNOOP
CSNOOP
RSNOOP
RSNOOP
RING
Snoop
Amplifier
Full Wave
RING2
DS-CPC5622-R03.1
www.ixysic.com
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