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N1055A 35/50 GHz, 2/4 Port, TDR/TDT Remote Sampling Head Module
A fully-integrated TDR/TDT/S-parameter measurement system
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Highlights
Fast and Accurate Impedance
New digital designs make signal integrity more challenging. That's why the Keysight N1055A remote head module is designed to provide fast and accurate impedance and S-parameter measurements on high-speed designs with up to 16 ports. Configure your DCA-X oscilloscope mainframe with one to four N1055A time-domain reflectometry (TDR) / time-domain transmission (TDT) modules for an economical solution.
- bandwidth options: 35 or 50 GHz (upgradeable)
- edge speed (10-90%, typical): 18 ps (35 GHz) or 7 ps (50 GHz)
- channel options: 2 or 4 per module (upgradeable) with independent skew control and up to 16 channels per N1000A DCA-X mainframe
- ultra-thin remote head: 1.27 m phase-stable cable, 2.92 mm (35 GHz), or 1.85 mm (50 GHz) connectors and integrated 67 GHz diode limiters for ESD/EOS protection
- TDR fixture de-embedding removes effects of fixtures, cables, or probes connected between remote heads and DUT
Calibrated Results in Real-Time
A fully-integrated N1000A with N1055A measurement system provides:
- single-ended, differential, and common mode measurement capability
- full S-parameter analysis with data exportable in Touchstone file format
- eCal DC - 67 GHz module support
- built-in calibration wizard that supports mechanical standards (SOLT) and ECal modules
- 7 ps fast edge speed for higher TDR resolution

Key Specifications
Bandwidth
50 GHz
Maximum memory depth
n/a
Maximum sample rate
250 kHz
Type
Equivalent-Time
Bandwidth
Maximum memory depth
Maximum sample rate
Type
50 GHz
n/a
250 kHz
Equivalent-Time
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Applications:
DCA-X Electrical TDR/TDT Module
Bandwidth:
50 GHz
Bandwidth options:
Up to 50 GHz
Electrical channels:
4
Form factor:
Module
Input type:
1.85 mm
2.92 mm
Instrument Type:
Equivalent-Time
Intrinsic jitter:
≤ 90 fs rms
Max. Bandwidth:
50 GHz
Maximum memory depth:
n/a
Maximum sample rate:
250 kHz
Maximum bandwidth:
50 GHz
Maximum electrical bandwidth:
50 GHz
Maximum optical bandwidth:
n/a
Module type:
Remote Sampling Head
Number of channels:
2 electrical
4 electrical
Operating System:
Windows 10
Optical channels:
0
Supported Filter Range:
n/a
Type:
Equivalent-Time
Wavelength range:
n/a

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