M2004-02-622.0800

Clock Generators, PLLs, Frequency Synthesizers Overview

The M2004-02-622.0800 is a VCSO-based clock generator PLL designed for frequency translation and jitter attenuation in high-speed data communications systems. It features an integrated SAW delay line with a center frequency of 622.08 MHz, delivering typical phase jitter below 0.5 ps rms (12 kHz to 20 MHz). The device operates on a single 3.3V supply within a 9x9 mm ceramic leadless chip carrier package. Input reference clocks up to 175 MHz are supported via differential LVDS/LVPECL or single-ended LVCMOS/LVTTL interfaces. Pin-selectable M and N dividers allow flexible output frequency generation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated SAW delay line providing low phase jitter (< 0.5 ps rms typical)
• Pin-selectable M and N dividers for configurable feedback and output ratios
• Supports differential LVDS/LVPECL and single-ended LVCMOS/LVTTL reference inputs
• Single 3.3V power supply operation

Clock Generators, PLLs, Frequency Synthesizers Applications

• OC-48/192 data clock generation
• Gigabit Ethernet clock translation
• 2.5 Gb or 10 Gb optical network line card applications

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix configuration when ordering, as the part number indicates the commercial temperature range (-0 to +70 °C). Industrial variants require an 'I' suffix. Confirm the VCSO center frequency matches the application requirements, as this parameter must be specified at the time of order. Ensure external loop filter components are selected according to the datasheet tables to achieve stable PLL bandwidth and damping factors.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the M2004-02 variant for standard frequency translation without hitless switching capabilities. If SONET/SDH MTIE and TDEV compliance during reference clock reselection is required, consider the M2004-12 variant which includes Hitless Switching with Phase Build-out (HS/PBO). Ensure the input reference frequency allows the product of M and Fref_clk to fall within the VCSO lock range. External loop filter values must be calculated based on the chosen M divider value and VCSO frequency.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the M2004-x2 family of frequency translation PLLs from Integrated Circuit Systems, Inc. (ICS), now part of Renesas Electronics. The family includes variants -02, -12, -22, -32, -42, and -52, which differ primarily in the inclusion and type of Hitless Switching features. The M2004-02 serves as the base model for applications requiring robust clock multiplication and jitter attenuation without complex switching logic.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult ICS/Renesas for direct replacements or updated series information.