W682510R

Overview

The W682510 is a dual-channel PCM CODEC compliant with ITU G.712, operating from a single +4.5V to +5.5V supply. It features pin-selectable μ-Law or A-Law companding (ITU G.711) and includes on-chip precision voltage reference and receive output buffer amplifiers capable of driving 600 Ω loads. The device supports parallel or serial synchronous PCM data transfer protocols and integrates a built-in PLL for internal clock generation. It operates within an industrial temperature range of –40°C to +85°C.

Feature Summary

• Fully-differential analog circuit design reduces noise and improves power supply rejection ratio.
• Built-in PLL eliminates the need for a master clock by automatically determining the division ratio for required internal clocks.
• On-chip precision voltage reference provides stable signal ground for analog processing.

Applications

• Digital Telephone Systems
• Central Office Equipment (Gateways, Switches, Routers)
• PBX Systems (Gateways, Switches)
• VoIP Terminals
• Analog line cards

Procurement Notes

Verify that the specific component variant matches the W682510 designation, as the datasheet also covers the W682310 which utilizes a different supply voltage range (+2.7V to +3.8V). Confirm package availability, noting that the 20-pin PDIP option is exclusive to the W682510, while SSOP and SOP packages are shared. Ensure the ordering suffix corresponds to the desired packaging configuration before finalizing procurement.

Selection Notes

Select the W682510 when a +5V single supply rail is available and a 600 Ω load drive capability is required for line transformers. Choose this part over the W682310 if the system architecture mandates higher output voltage swing (3.46 Vpp) compared to the 3.3V-optimized alternative. Verify that the application requires dual-channel voiceband processing with integrated filtering compliant with ITU-T G.712 specifications.

Part Context

The W682510 belongs to a family of general-purpose dual-channel PCM CODECs designed for voiceband applications. It shares architectural similarities with the W682310 but differs in supply voltage requirements and analog output drive capabilities. Both devices support identical digital interfaces and companding laws, allowing for flexible deployment in various telecommunication infrastructure equipment requiring standardized PCM encoding.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.