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M844 - MULTI-RATE CLOCK RECOVERY

General Description

The M844 Multi-Rate Clock Recovery module provides low jitter clock recovery from NRZ or RZ input data formats.

Four data rates are digitally selectable: 9.953, 10.3125, 10.664, or 10.709Gb/s.

Incoming data is first amplified by a limiting amplifier.

Key Features

  • 4 selectable NRZ or RZ rates: 9.953, 10.3125,.
  • 10.664, or 10.709Gb/s Superior VCSO-based PLL jitter performance 0.12 ps peak-to-peak max 0.02ps rms jitter, typical (12kHz-20MHz) Low phase noise -85dBc/Hz @ 1kHz offset 6mV peak-to-peak input sensitivity Up to 700mV peak-to-peak un-retimed NRZ or RZ data output +5V and -5V power supplies Designed for high-speed fiber optic.

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Datasheet Details

Part number M844
Manufacturer Integrated Circuit Systems
File Size 141.54 KB
Description MULTI-RATE CLOCK RECOVERY
Datasheet download datasheet M844 Datasheet

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Integrated Circuit Systems, Inc. Product Brief M844 MULTI-RATE CLOCK RECOVERY GENERAL DESCRIPTION The M844 Multi-Rate Clock Recovery module provides low jitter clock recovery from NRZ or RZ input data formats. Four data rates are digitally selectable: 9.953, 10.3125, 10.664, or 10.709Gb/s. Incoming data is first amplified by a limiting amplifier. The data is then both: a) provided as the module’s unretimed data output, and b) applied to the clock recovery circuitry. A Phase Locked Loop (PLL) incorporates frequency multipliers and a SAW-based Voltage Control SAW Oscillator (VCSO) to minimize clock jitter. The VCSO provides the high Q, low noise, and high stability needed for the narrow bandwidth PLL operation.