The Stanford Research CG641 is a CMOS clock generator delivering precision timing signals up to 500 MHz, powered by a single +3.3Vcc supply. The device outputs CMOS-level signals with 50 Ω output impedance designed for driving high-impedance loads across any length of 50 Ω coaxial cable. Transition times remain below 1 ns, enabling clean, fast clock edges for demanding synchronization requirements.
Technical Specifications
• Maximum Frequency: 500 MHz
• Output Type: CMOS
• Power Supply: +3.3Vcc
• Output Impedance: 50 Ω
• Transition Times: Less than 1 ns
• Chassis Ground: Available
– Key Features
• Single +3.3 V supply simplifies integration into modern digital systems
• 50 Ω output impedance for controlled signal distribution via coaxial interconnects
• Sub-nanosecond transition times ensure minimal timing jitter
• Front-panel CMOS output connector for direct instrument access
– Typical Applications
The CG641 serves precision clock distribution in test benches, digital design validation, and laboratory measurement setups requiring stable, low-jitter reference signals at frequencies to 500 MHz.
– Compatibility & Integration
Optional line receiver modules (CG640 to CG649 series) expand the CG641’s functionality by providing complementary logic outputs on SMA connectors. These receivers accept independent ±5 VDC power delivered via rear-panel RJ-45 connector, allowing flexible multi-output configurations without additional external supplies.
