W681310RG TR

Overview

The W681310RG TR is a single-channel voiceband PCM CODEC manufactured by Nuvoton Technology Corporation. It operates from a single +3V power supply (2.7V to 5.25V) and supports pin-selectable μ-Law or A-Law companding compliant with ITU G.711. The device integrates an on-chip precision voltage reference and push-pull power amplifiers capable of driving 300Ω loads differentially up to 3.544V peak-to-peak. It accepts master clock rates between 256 kHz and 4.800 MHz via an internal pre-scaler. The component is housed in a 20-pin SSOP package and functions within an industrial temperature range of –40°C to +85°C.

Feature Summary

• Fully-differential analog circuit design with integrated push-pull power amplifiers for high driving capability.
• Supports long-frame, short-frame synchronous PCM communications as well as ISDN GCI and IDL protocols.
• Includes an on-chip precision voltage reference and automatic pre-scaler for flexible system timing.

Applications

• VoIP and Voice over Networks systems
• Digital telephone and communication equipment
• Wireless voice devices and PABX/SOHO systems
• ISDN equipment and modems/PC cards

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing this part number. Confirm that the 'RG' designation corresponds to the RoHS-compliant SSOP-20 package variant. Ensure compatibility with the required 2.7V to 5.25V supply rails and check for end-of-life status prior to final procurement decisions.

Selection Notes

Select the W681310RG TR for applications requiring a single-supply voiceband codec with differential output capabilities. This model is suitable for designs needing support for both standard PCM frame formats and ISDN interfaces like GCI and IDL. Consider the industrial temperature range and low power-down consumption when evaluating thermal and energy constraints.

Part Context

This component belongs to the W681310 series of single-channel voiceband CODECs. The RG suffix typically denotes the SSOP-20 package option, while other variants may offer SOG or TSSOP packages. The series is designed for general-purpose digital telephony and communication systems requiring ITU-T G.712 compliance.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout and electrical parameter compatibility if considering alternative single-channel voiceband codecs from other manufacturers.