CPC5620 Datasheet, PDF (1/18 Pages) Clare, Inc. – LITELINK III Phone Line Interface IC (DAA)

CPC5620/CPC5621
LITELINK™ III Phone Line Interface IC (DAA)
Features
Description
• Superior voice solution with high power option, low
LITELINK III is a single-package silicon phone line
noise, no automatic gain control circuit, and excel-
interface/DAA used in voice and data communication
lent part-to-part gain accuracy
applications to make connections between host equip-
• Data access arrangement (DAA) solution for modems at
ment and telephone networks.
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
• Supplied application circuit complies with the
requirements of TIA/EIA/IS-968 (FCC part 68),
UL1950, UL60950, EN60950, IEC60950,
EN55022B, CISPR22B, EN55024, and TBR-21
• Complies with UL1577
• Line-side circuit powered from telephone line
• Compared to other silicon DAA solutions, LITELINK:
LITELINK provides a high-voltage isolation barrier, AC
and DC phone line termination, switchhook, 2-wire to
4-wire hybrid, ring detection, and on-hook signal
detection. LITELINK can be used in both differential
y _{and single-ended signal applications.}
r _{LITELINK uses on-chip optical components and a few}
inexpensive external components to form a complete
a ^{voice or high-speed data phone line interface.}
LITELINK eliminates the need for the large isolation
transformers or capacitors used in other interface con-
in ^{figurations. It incorporates the required high-voltage}
- Uses fewer passive components
- Takes up less printed-circuit board space
- Uses less telephone line power
- Offers simplified operation
lim ^{- Is a single-chip solution}
Applications
• Computer telephony and gateways, such as VoIP
• PBXs
e _{• Satellite and cable set-top boxes}
• V.92 (and other standard) modems
r _{• Fax machines}
• Voicemail systems
P ^{• Embedded modems for POS terminals, automated}
isolation barrier in the surface-mount SOIC package.
The CPC5620 (half-wave ring detect) and CPC5621
(full-wave ring detect) PLIs build upon Clare’s
LITELINK II line, with improved insertion loss control,
improved noise performance, and lower minimum cur-
rent draw from the phone line.
Ordering Information
Part Number
CPC5620A
CPC5620ATR
Description
32-pin PLI with half-wave ring detect, tubed
32-pin PLI with half-wave ring detect, tape
and reel
banking, remote metering, vending machines, secu-
CPC5621A
32-pin PLI with full-wave ring detect, tubed
rity, and surveillance
CPC5621ATR
32-pin PLI with full-wave ring detect, tape and
reel
Figure 1. CPC5620/CPC5621 Block Diagram
Tx+
Tx-
MODE
OH
RING
CID
Rx+
Rx-
Transmit
Diff.
Amplifier
Isolation Barrier
Transmit
Isolation
Amplifier
Transconductance
Stage
2-4 Wire Hybrid
AC/DC Termination
Hookswitch
Receive
Diff.
Amplifier
Vref
Gain Trim
CID/
RING
MUX
Vref
Gain Trim
Receive
Isolation
Amplifier
Snoop Amplifier
CSNOOP
CSNOOP
RSNOOP
RSNOOP
TIP+
VI Slope Control
AC Impedance Control
Current Limit Control
RING-
DS-CPC5620/5621-R0.E
www.clare.com
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