SI5023-D-GM

Overview

The Si5023-D-GM is a fully integrated, high-performance limiting amplifier and clock and data recovery (CDR) IC designed for high-speed serial communication systems. It derives timing information and data from serial inputs at OC-48/12/3, STM-16/4/1, Gigabit Ethernet rates, and supports 2.7 Gbps streams for FEC applications. The device utilizes Silicon Laboratories DSPLL technology to eliminate external loop filter components, ensuring optimal jitter performance. It operates from a 3.3 V supply over the industrial temperature range of –40 to 85 °C.

Feature Summary

• Supports multi-rate operation including OC-48/12/3, STM-16/4/1, Gigabit Ethernet, and 2.7 Gbps FEC
• Integrates DSPLL technology for superior jitter performance without external loop filters
• Typical jitter generation of 3.0 mUIrms
• Small footprint package measuring 5 x 5 mm

Applications

• SONET/SDH routers
• Add/drop multiplexers
• Digital cross connects
• Gigabit Ethernet interfaces
• Optical transceiver modules

Procurement Notes

Verify the specific suffix '-D-GM' against official manufacturer documentation to confirm exact temperature grade or packaging specifications. Ensure compatibility with 3.3 V supply requirements and check for RoHS compliance status in the latest datasheet revision.

Selection Notes

Select this component for designs requiring low jitter CDR functionality up to 2.7 Gbps. Consider the optional external reference clock input to minimize acquisition time and maintain stable output clocks. Evaluate board-level interaction risks, as DSPLL technology reduces sensitivity to such factors compared to traditional analog PLLs.

Part Context

The Si5023 represents a class of high-speed LA/CDR devices optimized for SONET/SDH and Ethernet applications. It combines a limiting amplifier with a digital signal processing-based PLL to recover clock and data from serial inputs, providing synchronous outputs via CML drivers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

FAQ

Does the Si5023 require an external reference clock?

No, the use of an external reference clock is optional. The device can perform clock and data recovery without one by monitoring the timing quality of the incoming data.

What is the typical jitter generation of the Si5023?

The typical jitter generation is 3.0 mUIrms when presented with jitter-free input data.

How is the data slicing level controlled?

The data slicing level is externally adjustable by applying a voltage between 0.75 V and 2.25 V to the SLICE_LVL input pin.