Date:2024.08.10
Visits:443
Product Description
Semight CR6256 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 24.33-56.25Gbaud. It is widely used in 400G/800G optical transceiver and Interface test and measurement.
Benefiting from its high sensitivity, low intrinsic jitter, and excellent measurement accuracy, the CR6256 is able to recover clocks from closed-eye signals.
Optical
transceiver with built-in DSP/CDR requires the use of a clock recovery unit
（4×56 Gbaud or8×56 Gbaud PAM4）
Flexible Configuration
Single-Mode and Multi-Mode in one unit; Support both optical and electrical signal clock recovery (optional).
Wide Range
Supports NRZ/PAM4 signal clock extraction at 24.33~56.25 Gbaud.High Sensitivity
Very conducive to silicon photonic application with ultra-low input optical power.
Wide Application
Complies with IEEE 802.3 Ethernet, PON, Fiber Channel, and OIF standards for 100G/200G/400G/800G and 25G/50G PON optical transceivers testing.
Easy to Use
With either touch lcd screen or flexible remote-control solution, the CR6256 can work with sampling oscilloscopes easily and quickly.
Figure 2
53.125 Gbaud Eye Diagram（TDECQ=1.51 dB）
Item Description Data Rate
Input Range 24.33024 ~ 28.9
Gbaud 49.7664 ~ 56.25
Gbaud Modulation NRZ/PAM4 Optical Interface FC/UPC Electrical Interface 2.92 mm female，50 Ω Optical Input
Power Range -12 ~ +5 dBm Optical
Sensitivity -10 dBm
@ 53.125 Gbaud PAM4/850 nm -12 dBm
@ 53.125 Gbaud PAM4/1310 nm -12 dBm
@ 26.5625 Gbaud PAM4 Wavelength
Range 800 ~ 1650 nm Factory
Calibrated Wavelength 850/1310 ±10 nm Recovery Clock
Divide Ratio 1/2，1/4，1/8，1/16 Recovered
Clock Amplitude 300 mVpp Recovered
Clock Random Jitter ≤230 fs Clock Output Characteristic
Impedance 50 Ω Loop Bandwidth 4 MHz
(typical)
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