ZL49031DDE1

Overview

The ZL49031DDE1 is a DTMF receiver integrated circuit manufactured by Microchip Technology. It operates on a single supply voltage ranging from 4.75V to 5.25V and draws a typical supply current of 3mA. The component is housed in a 20-SSOP package with a width of 5.30mm. It functions as a single-circuit interface designed for decoding Dual-Tone Multi-Frequency signals. The device supports an operating temperature range from -40°C to 85°C. This part is currently classified as obsolete.

Feature Summary

• Decodes Dual-Tone Multi-Frequency (DTMF) signals for telecommunications applications
• Single-circuit design for efficient signal processing
• Surface-mount construction in a compact 20-SSOP package

Applications

• Telecommunications equipment
• Dual-Tone Multi-Frequency signal decoding systems
• Telephone interface circuits

Procurement Notes

Verify the obsolete status of the ZL49031DDE1 before procurement planning, as availability may be limited to existing stock or third-party distributors. Confirm that the 20-SSOP package dimensions align with your PCB footprint requirements. Ensure that the 4.75V to 5.25V supply voltage range matches your system power architecture. Check for lead-free compliance if required by your manufacturing standards. Consider replacement strategies due to the component's end-of-life classification.

Selection Notes

Select this component only if legacy compatibility with specific DTMF decoding protocols is required. The fixed 5V supply requirement limits use in low-voltage modern designs. The obsolete status necessitates careful lifecycle management. Evaluate whether newer Microchip solutions offer similar functionality with improved availability. Verify thermal performance within the -40°C to 85°C range for your specific environment.

Part Context

The ZL49031DDE1 belongs to Microchip Technology's telecom interface product line. It is specifically categorized as a DTMF receiver IC. The part utilizes a surface-mount SSOP package suitable for automated assembly. It serves as a specialized solution for tone detection in voice communication systems. The manufacturer has discontinued active production of this specific model.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements should be identified through official Microchip lifecycle notices or authorized distributor cross-reference tools. No generic industry substitutes are verified.