Fairchild 98-CDD0190-X Synthesizer Card 98CDP0190X01XXXXXXXN Rev 40 Satcom

Fairchild 98-CDD0190-X Synthesizer Card 98CDP0190X01XXXXXXXN Rev 40 Satcom

This is a Fairchild 98-CDD0190-X Synthesizer plug-in PCB card, part number 98CDP0190X01XXXXXXXN, Revision 40. It is a frequency synthesizer module designed for use in satellite communications (satcom) ground equipment. The card is a single-board plug-in module that fits into a chassis or rack system and provides frequency synthesis functions within the larger RF or IF signal chain.

Specifications & What's Included

• Manufacturer: Fairchild
• Product Type: Synthesizer PCB Card / Plug-In Module
• Model / Assembly Number: 98-CDD0190-X
• Full Part Number: 98CDP0190X01XXXXXXXN
• Revision: Rev 40
• Form Factor: Single PCB card / plug-in module with gold edge connector fingers
• Application: Satellite communications (satcom) chassis or rack system
• Visible components: Multiple DIP switch banks for configuration, yellow toroidal and ferrite transformers, RF-shielded can modules, surface-mount and through-hole passives, CR3 LED indicator
• Edge connector: Gold-finger card-edge connector for chassis backplane interface
• Sold as individual card only; no chassis, cables, or accessories included

Applications

Fairchild was a major supplier of RF and satcom electronics for ground-station and communications systems, and cards in the 98CDP series were used as synthesizer modules within satcom baseband and RF chassis equipment. Frequency synthesizer cards like this one generate stable, precise local oscillator frequencies used in upconverters, downconverters, modems, and other satcom signal-processing equipment. The DIP switch banks visible on the board allow frequency or configuration selection, a common design approach in rack-based satcom systems of the 1980s and 1990s. These modules are typically found in ground-station racks, teleport equipment, and broadcast uplink systems. Replacement and spare synthesizer cards for this class of satcom equipment are increasingly scarce, making them sought-after by satcom engineers and technicians maintaining legacy ground-station infrastructure.