Anritsu MH677A

The Anritsu MH677A is a demultiplexer module for high-speed digital signal characterization and component testing. It receives clock and data signals at 700 Mb/s to 1.4 Gb/s, halving the signal rate to 350 Mb/s to 700 Mb/s for downstream measurement and analysis. Mounted within the ME522A receiver, the MH677A integrates with the MH676A multiplexer to form a complete signal conditioning subsystem for error rate measurement and GaAs device validation.

## Technical Specifications

• Input signal rate: 700 Mb/s to 1.4 Gb/s
• Output signal rate: 350 Mb/s to 700 Mb/s
• Operating temperature: 0°C to 50°C
• Power supply: External via ME522A transmitter/receiver

## Key Features

• Integrated receiver module — mounted directly within ME522A housing
• Precise clock and data demultiplexing across a 700 MHz to 1.4 GHz input bandwidth
• ESD-sensitive FET input and output stages require proper grounding and static precautions
• Condensation-resistant operation after thermal cycling when properly dried before power-up

## Typical Applications

• Development and characterization of high-speed digital systems operating at 700 Mb/s to 1.4 Gb/s
• GaAs FET and GaAs IC functional and parametric testing
• LD optical device measurement and validation
• Error rate analysis and data integrity verification in bit-error-rate test systems

## Compatibility & Integration

The MH677A operates as a paired module with the Anritsu MH676A multiplexer and is housed within the ME522A Error Rate Measuring Equipment. It requires proper system grounding of the ME522A, device under test, and any external observation instruments to prevent measurement faults. Avoid installation in environments with severe vibration, high humidity, dust, direct sunlight, or corrosive gas exposure.