DS31404GN2

Overview

The DS31404GN2 is a dual DPLL timing IC manufactured by Microchip Technology, designed for Ethernet, SONET/SDH, Stratum, and telecom applications. It features two independent circuits with a 4:8 input-to-output ratio and supports differential inputs and outputs. The device operates up to 750MHz on a single 1.8V supply. Inputs accept CMOS or TTL signals, while outputs provide CML, CMOS, LVDS, LVPECL, or TTL formats. It is housed in a 256-CSBGA (17x17) package and functions within an operating temperature range of -40°C to 85°C.

Feature Summary

• Dual DPLL architecture supporting 4:8 input-to-output ratios
• Differential input and output signal support
• Multi-format output options including CML, LVDS, LVPECL, CMOS, and TTL
• Operates at frequencies up to 750MHz with 1.8V supply

Applications

• Ethernet synchronization
• SONET/SDH network timing
• Stratum clocking systems
• Telecommunications infrastructure

Procurement Notes

Verify the specific suffix 'GN2' against the official Microchip datasheet to confirm pinout, packaging, and RoHS compliance status. Ensure the 256-CSBGA footprint matches the target PCB design. Confirm moisture sensitivity level (MSL) handling requirements prior to assembly.

Selection Notes

Select this component when dual independent DPLLs are required for complex timing architectures. The 4:8 ratio allows flexible input/output mapping. Verify that the 1.8V supply voltage aligns with system power rails. Ensure the 256-pin CSBGA package size (17x17mm) fits the mechanical constraints.

Part Context

This part belongs to the DS3140x family of clock synthesizers and jitter cleaners. It shares the same core technology as variants like the DS31406GN2 and DS31407GN2 but distinguishes itself through its dual DPLL configuration and specific 4:8 I/O ratio capabilities tailored for high-performance telecom applications.

Replacement Considerations

Check for direct cross-references within the DS3140x series. Variants such as DS31406GN2 or DS31407GN2 may offer similar performance but differ in DPLL count or I/O ratios. Verify electrical compatibility before substitution.