



DCA4201
10GHz Sampling Oscilloscope DCA4201
DCA4201 is a sampling oscilloscope, which is designed based on equivalent-time sampling and eye diagram reconstruction technology, it offers a low-cost solution for high-precision measurement of high-speed optoelectronic digital signals.
- Fast Sampling – Fast sampling rate 100K
- Extinction ratio correction – Support extinction ratio correction
- Eye Mask Test – Automatic eye margin testing(Mask Margin)
- Standard Filter – Covers 1-12.5 Gbps data rates
Features and Benefits
Multi-port integrated design
Small size( about ¼ of traditional sampling oscilloscope), greatly reduces required space.
Default configuration is 1 optical + 1 electrical(20G BW), support testing optical signal and electrical signal simultaneously.
Differential electrical port is available by option, and support 10G and below rate electrical eye diagram measurements.


Calibrated reference receiver
Meets industry frequency response tolerances
Semight DCA4201 sampling oscilloscope(1.25G/2.5G)
Calibrated reference receiver
Semight DCA4201 sampling oscilloscope(10G)

With extinction ratio correction factor/dark current self-calibration and other algorithms,
test results are highly consistent with industry standards,
Module under test | RMS Jitter (ps) | Intersection Crossing (%) |
Rise Time 20%~80% (ps) |
Extinction Ratio (dB) | Template margin Mask Margin (%) |
|
---|---|---|---|---|---|---|
Semight DCA4201 | 11.69 | 52.04% | 153.86 | 10.44 | 28.91% | |
DUT1 | Consistency (absolute deviation) | 0.26 | 0.06% | 2.34 | 0.12 | 1.20% |
Consistency (relative deviation %) | 2.27% | -0.12% | -1.50% | -1.14% | 4.37% | |
Semight DCA4201 | 7.73 | 50.30% | 149.56 | 11.31 | 40.63% | |
DUT2 | Consistency (absolute deviation) | -0.1 | 0.06% | 2.34 | 0.12 | 1.20% |
Consistency (relative deviation %) | -1.28% | -0.20% | -3.76% | -2.25% | 3.65% |
Optical Channel Specifications | |
---|---|
Wavelength Range | 850~1650 nm |
Calibrated Wavelengths (OE conversion gains) | 850/1310/1550 nm |
Filters | |
DCA4201-140 | GPON, 1.244 Gbps 1Gb Ethernet, 1.250 Gbps CPRI 1.229 Gbps |
DCA4201-160 | OC-48/STM-16, 2.488 Gbps 2 Gb Ethernet, 2.500 Gbps CPRI 2.458 Gbps |
DCA4201-180 | 10Gb Ethernet LX-4, 3.125 Gbps CPRI 3.072 Gbps |
DCA4201-200 | CPRI 6.144 Gbps, 6.25 Gbps |
DCA4201-100 | OC-192/STM-64, 9.953 Gbps 10Gb Ethernet, 10.3125 Gbps 10×Fibre Channel, 10.51875 Gbps OC-192/STM-64 FEC, 10.664 Gbps OC-192/STM-64 FEC, 10.709 Gbps 10Gb Ethernet with FEC, 11.0957 Gbps 10×Fibre Channel with FEC, 11.317 Gbps |
Electrical channel bandwidth | 20 GHz (typ.) |
Rise Time (10%~90%) | 20 ps |
Max Input Amplitude | < 1 V |
RMS noise | < 2 mV (typ.) |
Electrical Sensitivity | 24 mV |
Reflection | 10% |