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LITELINK Silicon Data Access Arrangement (DAA)
Phone Line Interfaces, Telephone Network Interfaces

Connecting to telephone networks for both voice and data applications requires a suitable interface that offers all of the required functionality and that is compatible with the network. IXYS Integrated Circuits Division offers two types of data access arrangements solutions, LITELINK and Cybergate.

LITELINK is a single-IC high-speed, low-cost phone line interface (DAA) solution.

Cybergate offers faster integration for lower-speed applications.

Features: Applications:  
• Voice and data applications
• Modem DAA for speeds up to V.92
• Half-wave or full-wave ring detection
• Worldwide telephone network    compatibility
• Caller-ID reception
• Line side powered from telephone line
• 3.3 or 5V power supply
• Easy interface with modem ICs and voice CODECs
• High power transmit option
• Computer telephony
• VoIP gateways
• PBXs
• Satelite set-top box
• V.92 modems
• Fax machines
• Voice mail systems
• Embedded modems
• Vending Machines
• Automated banking
• Remote metering
• Surveillance
• Security systems
LITELINK Family     (top)

LITELINK single-chip Silicon phone line interfaces (DAA) use optical technology to include the required isolation barrier in the package, eliminating high cost capacitors or transformers.

This solution saves cost relative to competitive solutions through reduced passive component count and smaller printed-circuit board space.

LITELINK supports differential and single-end receive and transmit ports providing an easy interface to popular modem ICs codecs and voice SLAC devices.


CPC5620* Half-Wave Ringing Detect / CID Select Control
CPC5621* Full-Wave Ringing Detect / CID Select Control
CPC5622* Half-Wave & Full-Wave Ringing Detect with simultaneous CID
* Recommended for new designs: 3.3V or 5V Power Supply

LITELINK III Evaluation Board

The CPC5622-EVAL-600R evaluation board ships with the CPC5622 LITELINK III and CPC5712 voltage monitor to demonstrate the functionality of a PSTN two-wire terminating interface that provides both the analog voice transmission and signaling functions. The analog interface is configured to provide a 600 Ohm resistive AC impedance with 0dB gain in both the transmit and receive directions. While the CPC5622 provides the hook switch and ringing detect signaling functions, the CPC5712 is utilized to monitor and detect changes in the DC line voltage to determine loop status and signaling information sent by the network. Status of the loop is given by the logic level outputs of the three CPC5712 on-board detectors indicating Loop Presence, Line In Use, and Loop Polarity.
LIGHTLINK III Evaluation Board
LITELINK III Evaluation Board Documentation (top)
CPC5622-EVAL Evaluation Board Users Guide
CPC5622-EVAL Evaluation Board Design Files

Order the LITELINK III Evaluation Board from:

One of our authorized distributors...
LITELINK Support Components (top)
CPC5710N Phone Line Monitor
CPC5712 Voltage Monitor with Detectors

Reference Designs

FXO Interface IXYSICD/Microsemi FXO Eval Platform

Application Notes for LITELINK III

(AN-102) Loop Current Detection for LITELINK
(AN-112) Ground-Start Supervision Circuit Using IXYS Integrated Circuits Division's IAA110
(AN-117) Customize CID Gain for CPC562x LITELINK Products)
(AN-146) Guidelines For Effective LITELINK Designs
(AN-155) Understanding LITELINK ™ Display Feature Signal Routing and Applications
(AN-158) Application Circuit Calculations
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