The Agilent/Keysight 83446B is a lightwave clock/data receiver that recovers clock and data signals from optical input at 622.08 Mb/s (OC-12/STM-4) data rates. Built around a high-gain avalanche photodiode, gain-controlled amplifier, and clock/data recovery hybrid, the instrument delivers clean, error-free outputs across a wide dynamic range of optical power levels. It operates at 1310 nm and 1550 nm wavelengths per ITU-T G.957, G.958, and Bellcore GR-253-CORE standards.
Technical Specifications
Data Rate: 622.08 Mb/s (OC-12/STM-4); optional configurations from 425 Mb/s to 3 Gb/s
Wavelength Operation: 1310 nm and 1550 nm across ITU-T and Bellcore standardized ranges
Optical Input:
• Sensitivity: -27 dBm minimum (0°C to 55°C)
• Minimum power for clock/data recovery: -28 dBm
• Minimum power for auxiliary output: >-24 dBm (AGC stabilized)
• Maximum operating input: -9 dBm minimum
• Maximum safe input power: +10 dBm
• Optical return loss: 27 dB
• Fiber core diameter: 50 µm (single-mode or multimode compatible)
• Standard FC/PC connector interface (Option 010 deletes connector)
Signal Recovery:
• Recovers clock and data from optical input
• Recovers clock and data from electrical auxiliary input
• Optimized for integration with BERTs (71604B, 71603B, 86130A)
• Compatible with sampling oscilloscope eye diagram analysis; recovered clock triggers scope
Electrical Outputs:
• Data Out: 0.5 V pk-pk, non-inverting
• Clock Out: 0.5 V pk-pk, non-inverting
• Output return loss: 12 dB @ 1 GHz, 9 dB @ 2 GHz, 6 dB @ 2.5 GHz
• Clock edges aligned with data transitions to ±0.25 unit interval
Jitter: RMS jitter on clock/data outputs: 5 degrees
Auxiliary Output:
• Bandwidth: 0.1 to 1500 MHz
• Output level: 0.5 V pk-pk for >-24 dBm input; 0.25 V pk-pk for >-27 dBm input (AGC stabilized)
• Provides analog monitoring for diagnostic analysis
Electrical Clock Recovery Input: 200 mV pk-pk sensitivity; 2 V pk-pk maximum safe input
Performance: Bit error ratio better than 1E-10 with 2^23-1 PRBS pattern, 50% mark density
– Key Features
• High-sensitivity optical reception with wide dynamic range
• Low jitter clock/data recovery (5 degrees RMS)
• Dual-wavelength operation (1310/1550 nm)
• AGC-stabilized auxiliary output for signal monitoring
• Electrical clock recovery input for flexible triggering
– Typical Applications
• OC-12/STM-4 optical system characterization
• BER testing and measurement
• Optical eye diagram analysis
• System acceptance testing in telecommunications and datacom environments
– Compatibility & Integration
Designed for use with Agilent/Keysight BERT instruments and sampling oscilloscopes. Agilent 81000xI Series optical interface connectors sold separately.
