Microwave Modules for Fiber-Optical

Our company, collaborating with ETRI (Electronics and Telecommunications Research Institute), has developed modules for 40 Gb/s clock and data recovery (CDR) in a fiber optical communication receiver. Our 40 Gb/s CDR module uses a phase-locked loop with a stable DRO source to reduce jitter of the recovered clock. The module integrates a DRO, multipliers, phase shifters, amplifiers, etc. to recover stable clock from 40 Gb/s binary signal, and to retime the input data with the recovered clock. We also offer low-cost phase shifters at 40/43 GHz with phase-locked loop technique.

Description:

The CDR-40G/CDR-43G module is a Clock and Data Recovery Module. This module extracts a clock component from 39~43 Gb/s NRZ signals, and stabilizes the signal using a phase-locked loop (PLL) with a dielectric resonator oscillator (DRO). In addition, this module contains phase shifters, and optionally retimes the input data with a decision circuit.

Features:

— Low cost.

— Low jitter in the recovered clock.

— High-Q oscillator (DRO) is used.

— Phase shifters at 40/43 GHz.

— Minimum 130 mV single ended input signal is required.

Product Options

— 01   40 Gb/s Clock and Data Recovery

— 02   40 Gb/s Clock Recovery Only

CDR (Clock and Data Recovery) Module

(Standard Product)

(Customized Product)

Description:

The PS-40G/PS-43G module is a reflection-type analog phase shifter with a phase-locked loop (PLL) at 40/43 GHz. The input signal is phase-locked with a dielectric resonator oscillator (DRO), and continuously phase-shifted electrically. These PS series modules can be used to phase-shift 40/43 GHz clock signal for data retiming.

Features:

— Uses phase-locked loop.

— Produces constant output power.

— Low return loss.

— Low jitter.

— Continuous phase shifting.

— 30 MHz bandwidth (with a mechanically tunable DRO).

(Standard Product)

(Customized Product)