CPC5622
LITELINK III Phone Line Interface IC (DAA)
®
• Embedded modems for POS terminals, automated
banking, remote metering, vending machines,
security, and surveillance
Features
• Superior voice solution with low noise and excellent
part-to-part gain accuracy
• 3 kV
line isolation
RMS
Description
• 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
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.
• 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
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.
- 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
• Satellite and cable set-top boxes
• V.92 (and other standard) modems
• Fax machines
Ordering Information
Part Number Description
CPC5622A
32-pin Phone Line Interface, 50/tube
• Voicemail systems
32-pin Phone Line Interface, tape and reel,
1000/reel
CPC5622ATR
Figure 1. CPC5622 Block Diagram
Isolation Barrier
Tx+
Tx-
Transmit
Diff.
Amplifier
TIP
Transmit
Isolation
Amplifier
Tx.
Gain
Trim
MODE
OH
Transconductance
Stage
2-4 Wire Hybrid
AC/DC Termination
Hook Switch
Rx.
Gain
Trim
Receive
Isolation
Amplifier
RING
Rx+
Rx-
Receive
Diff.
Amplifier
Rx MUX
&
Ringing Det.
Ringing Detect Outputs
Half Wave
CSNOOP
CSNOOP
RSNOOP
RSNOOP
RING
Snoop
Amplifier
Full Wave
RING2
DS-CPC5622 - Rev. 1.0
www.clare.com
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