W682310S

Overview

The W682310 is a dual-channel voiceband PCM CODEC compliant with ITU G.712 and G.711 standards, operating from a single +3V power supply (2.7V to 3.8V). It features pin-selectable μ-Law or A-Law companding and includes an on-chip PLL for internal clock generation. The device provides two independent channels with fully differential analog circuitry, anti-aliasing filters, and smoothing filters. Typical power dissipation is 35 mW, reducing to 5 μW in power-down mode. It supports serial and parallel PCM interfaces and operates within the industrial temperature range of –40°C to +85°C.

Feature Summary

• Dual-channel architecture with integrated μ-Law and A-Law companders
• Built-in phase-locked loop eliminates external master clock requirements
• Fully differential analog design reduces noise and improves power supply rejection
• Pin-selectable compression format and interface modes

Applications

• Digital Telephone Systems
• Central Office Equipment Gateways, Switches, Routers
• PBX Systems
• VoIP Terminals
• Enterprise Phones

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type availability as options include SSOP and SOP variants. Ensure supply chain stability due to potential lifecycle changes. Request official datasheets and test reports to validate performance specifications against application requirements before integration.

Selection Notes

Select the W682310 for low-voltage applications requiring dual-channel voiceband processing. Compare against the W682510 if a +5V supply is available, noting the voltage reference differences. Verify that the required PCM interface mode (serial or parallel) aligns with system controller capabilities. Ensure thermal management meets the industrial temperature range specifications.

Part Context

The W682310 belongs to the Nuvoton W682xx series of general-purpose voiceband codecs. It shares architectural similarities with the W682510 but is optimized for lower voltage operation. This family addresses legacy telephony and modern VoIP infrastructure needs by providing standardized filtering and companding compliant with international telecommunications recommendations.

Replacement Considerations

The W682510 serves as a functional alternative for systems utilizing a +5V supply instead of +3V. Verify voltage level compatibility and reference voltage adjustments when substituting between these models.