U9740B 56 Gbaud PAM4 CDR
U9740B 56 Gbaud PAM4 CDR
U9740B CDR（ Clock recovery instrument) is mainly used to provide clock recovery signals in test environments without triggering clocks, thereby using sampling Oscilloscope test device optical eye diagram.Typical applications are testing of optical network devices, or forPONIn-applicableBOBProduct, due to the meteringThe backup itself has no frequency-dividing clock output, and the clock signal needs to be restored when testing the optical eye diagram to trigger the sampling oscilloscope.
U9740B CDRWith oneFCOptical interface adapter，Applicable toconventionalSFP28/56、SR、LRandBIDIWait for modulesThe optical signalAccess，supportNRZandPAM4Signal,FCOptical interface receptionThe optical signal is converted into an electrical signal.CDRThe clock of the electrical signal is then extracted and output, and the clock signal is mainly used for the trigger signal of the oscilloscope.
Technical Indicators
No. | Technique Technique refer to Standard | mostbigvalue | Min | unit |
1 | Data rate range | 64 | 25 | Gbps/Gbaud |
2 | Wavelength range (single mode) | 1650 | 1250 | nm |
3 | Optical input range | +5 | -15 | dBm |
4 | Clock recovery output frequency division ratio | 2 / 4 / 8 / 16 / 32 / 64 | ||
5 | Output electric clock amplitude | 500（ Typical value) | mVpp | |
6 | CMLClock differential output amplitude | 800 | 200 | mVpp |
7 | Clock output random jitter | 500 | 300 | fs |
8 | Clock frequency (by28.1GbpsAs an example） | 14.05 | 0.44 | GHz |
9 | Internal signal loss detection(LOS) | 128 （ Overload) | 5（ Sensitivity) | mV |
10 | Power supply voltage(External power supply input voltage) | 5.5 | 4 | V |
11 | Operating temperature | 70 | 10 | ℃ |
12 | Adapt module type (supportedNRZandPAM4Signal) | SFP28/56，SR，LR，BIDI | ||