CR3302
CR3302
120 GBaud Clock Recovery Unit
Semight CR3302 is a compact, cost-effective and efficient desktop high-speed signal clock recovery unit, which supports either Non-Return-to-Zero (NRZ) or Pulse Amplitude Modulation 4-level (PAM4) signals clock recovery at 25 – 120 GBaud. It is widely used in 1.6T optical transceiver and Interface test and measurement. Benefiting from its high sensitivity, low intrinsic jitter, and excellent measurement accuracy, the CR3302 is able to recover clocks from closed-eye signals.
Features
Wide Range
Supports NRZ / PAM4 signal clock extraction at 25 – 120 GBaud
Excellent Performance
Fast locking speed
Under auto/semi-auto mode
Wavelength Range
1250 – 1600 nm
Multiple Frequency Output
25.5625 GBaud: 1/2, 1/4, 1/8
53.125 GBaud: 1/4, 1/8, 1/16
106.25 GBaud: 1/8, 1/16, 1/32
Recovered Clock Random Jitter
≤200 fs (typical)
Flexible Configuration
Supports both optical and electrical signal clock recovery (optional)
High Sensitivity
-12 dBm@106.25 GBaud PAM4/1310 nm
Very conducive to silicon photonic application with ultra-low input optical power
Easy to Use
With either touch lcd screen or flexible remote-control solution
the CR3302 can work with sampling oscilloscopes easily and quickly
| Item | Description |
| Data Rate Input Range | 25 – 120 GBaud |
| Modulation | NRZ/PAM4 |
| Optical Interface | 9/125 μm FC/UPC |
| Electrical Interface | 2.92 mm female, 50 Ω |
| Optical Input Power Range | -12 to +5 dBm |
| Optical Sensitivity | -12 dBm @ 106.25 GBaud PAM4/1310 nm |
| Wavelength Range | 1250 – 1600 nm |
| Factory Calibrated Wavelength[1] | 1310 ±10 nm |
| Recovery Clock Divide Ratio | 25.5625 GBaud: 1/2, 1/4, 1/8 53.125 GBaud: 1/4, 1/8, 1/16 106.25 GBaud: 1/8, 1/16, 1/32 |
| Recovered Clock Amplitude | ＞300 mVpp |
| Recovered Clock Random Jitter | ≤200 fs (typical) |
| Clock Output Characteristic Impedance | 50 Ω |
| Loop Bandwidth | 100k – 4 MHz (typical) |
[1] ±10 nm refers to the Calibration Light Source wavelength error