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 ban...

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