RF & Microwave
Modules and Instruments

SHF 78124 A Synthesizer
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Synthesizer

Clock Distribution

Switches

Phase Shifters

Clock Signal Amplifier

Frequency Dividers & Multipliers

Signal Shaping

Support

Synthesized Signal Generators (Synthesizers)

 

P/N Type Operational Range
SHF 78124 A in config. 32 Synthesized Signal Generator (Synthesizer) 1… 32.8 GHz

Clock Distribution

 

P/N Type Output
SHF C991 A 64 GHz Arbitrary Clock Distribution 7 copies of the incoming clock at different divider ratios
SHF C992 A 64 GHz Clock Distribution 6 copies of the incoming clock at the same frequency
SHF 78123 A 64 GHz Clock Distribution 13 copies of the incoming clock at different divider ratios
SHF C651 B 67 GHz Clock Buffer 2 copies of the input clock (one output 180° shifted)
SHF C652 A 67 GHz 1:2 Clock Buffer 2 inphase differential copies of the input clock signal.

Switches

 

P/N Type No. of Switching Ports
SHF C701 A 50 GHz 2:2 Cross Switch (DPDT) 2 ↔ 2
SHF C702 A 50 GHz Dual 2:1 Switch (SPDT) 2x (1 ↔ 2)
SHF C704 A 50 GHz 4:1 Switch (SP4T) 1 ↔ 4
SHF C980 A 60 GHz Switchable Filter Bank 1 ↔ 4

Phase Shifters

 

P/N Type Max. Delay Operational Range
SHF C661 B Adjustable Phase Shifter 70 ps 2… 35 GHz
SHF C961 A Phase Shifter with Clock-Doubler 70 ps 30… 60/67 GHz (at the doubled outputs)

Clock Signal Amplifiers

 

P/N Type Passband Typ. Gain Min. P3dB
SHF 818 Clock Amplifier 36 – 41 GHz 30 dB 29 dBm

Frequency Dividers & Multipliers

 

P/N Type Input Operating Range Output Operating Range
SHF C642 B f -> f/2 Static Frequency Divider 2… 60 GHz 1… 30 GHz
SHF 1632 A Frequency Doubler 13.5… 18 GHz 27… 36 GHz
SHF 2856 B Frequency Doubler 25… 32 GHz 50… 64 GHz

 

Signal Shaping (Filters, Equalizers and Attenuators)

 

P/N Type Bandwidth
SHF C711 A Dual Analog RF Attenuator 50 GHz
SHF C712 A Dual Digital RF Attenuator 40 GHz
SHF C980 A Switchable Filter Bank 30 GHz*

*Bandwidth depends on the set filter characteristic.

Support – RF Modules & Instruments

Literature

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General Info

Synthesized Signal Generators (Synthesizers) for Clock Generation
In digital high speed test and measurement, a perfect clock signal is crucial for the generation of low jitter reference test signals. A SHF Synthesized Signal Generator (Synthesizer) used as a clock source can operate over several decades of frequency and is an essential part of any high speed test and measurement environment.
The ability to vary, in a controlled manner, the level and nature of the clock jitter and transfer it to the signal is a key exercise in many R&D as well as production testing. For such stressed test environment, SHF offers a very broad band low jitter clock source, with jitter injection feature, operating over three decades of frequencies from 625 MHz to 67 GHz.

Clock Distribution
In setups with digital high speed modules and instruments, the clock distribution is always challenging as some parts require a full-clock, others a half-clock, and some even a lower fraction clock signal. Our clock distribution, frequency dividers and frequency doublers are designed to facilitate such a complex test set ups requiring a range of clock signals.

Signal Shaping
Our filter offer the crucial benefit of improving the quality of a heavily degraded signal after transmission, e.g. for BER measurements. Equalizing operation has been verified for signals up to 60 GBaud PAM4 and 80 Gbps NRZ. Attenuation can be adjusted within a range of 6 to 28 dB with our adjustable attenuator.

Signal Shaping
With our analog switches, routing between different high-speed clock, NRZ or PAM signal lines can be accommodated easily and fully automated.

Application and Tutorial Notes

  • Jitter Injection using the Multi- Channel BPG
    This note presents the setup to allow injection of jitter using a SHF Bit Pattern Generator. It demonstrates that SHF BPG’s are jitter transparent, i.e. it correctly transfer jitter from the clock to the data output signal. This enables jitter tolerance tests as required by many telecommunication standards such as 100G Ethernet and 40 GBit/s OTN.
  • Jitter Analysis using SHF 10000 Series BERT Equipment
    A short description of jitter and a tour of the SHF software used for the measurements. Includes an outline of the theory involved.

Software

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SHF Control Center (SCC)

All parts in our current product range of RF & Microwave Modules and Instruments which are controlled by a software running on an external PC require the SCC to operate (e.g. the SHF 78124 A synthesizer). Some obsolete parts of older vintage, however, may require the BCC.

This SHF software is free of charge for the lifetime of your device. The most current version can be downloaded here.

BERT Control Center (BCC)

The BCC may be required to operate some older vintage obsolete parts of the RF & Microwave Modules and Instruments section.

The most current version can be downloaded here.

Discontinued Products

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Discontinued Synthesized Signal Generators

P/N Type Form Factor
SHF 4020 CL Multioctave Signal Source Bench-Top
SHF 78120 A Synthesized Signal Generator Bench-Top
SHF 78120 B Synthesized Signal Generator Bench-Top
SHF 78120 C Synthesized Signal Generator Bench-Top
SHF 78120 D Synthesized Signal Generator Bench-Top
SHF 78122 B Synthesized Signal Generator Bench-Top
SHF 78210 A Synthesized Signal Generator Plug-In
SHF 78210 B Synthesized Signal Generator Plug-In
SHF 78210 C Synthesized Signal Generator Plug-In
SHF 78210 D Synthesized Signal Generator Plug-In
SHF 78210 E Synthesized Signal Generator Plug-In
SHF 78212 A Synthesized Signal Generator Plug-In

Discontinued Clock Distribution

P/N Type Form Factor
SHF 78121 A 56/64 GHz Clock Distribution Bench-Top

Discontinued Clock Recoveries

P/N Type Form Factor
SHF 11120 A Clock Recovery for SONET OC-768, FEC modes, etc. Bench-Top
SHF 11120 B Clock Recovery with built in optical receiver Bench-Top
SHF 11120 C Electrical Clock Recovery Bench-Top
SHF 11121 A Clock Recovery with Optical Front End Bench-Top
SHF 11123 A Electrical Clock Recovery Bench-Top
SHF 11124 A Clock Recovery with Optical Front End Bench-Top
SHF 11126 A Electrical Clock Recovery Bench-Top
SHF 41210 A Clock Recovery (CR) & Optical Receiver (OE) Plug-In
SHF 41210 B Electrical Clock Recovery (CR)
Optical Receiver w. single ended output (OE)
Plug-In
SHF 41211 A Electrical Clock Recovery (CR25 / CR28)
Optical Receiver w. single ended output (OE)
Plug-In
SHF 41211 C Electrical Clock Recovery (CR25 / CR28)
Optical Receiver w. differential output (OE)
Plug-In

Discontinued Frequency Dividers & Multipliers

P/N Type
SHF 1020 B 10 -> 20 GHz Frequency Doubler
SHF 1020 C 10 -> 20 GHz Frequency Doubler
SHF 1428 A 14 -> 28 GHz Frequency Doubler
SHF 2040 A 20 -> 40 GHz Frequency Doubler
SHF 2856 A 28 -> 56 GHz Frequency Doubler
SHF 441 DIV 5…50 GHz frequency divider
SHF 442 A 25 GHz -> f/2 Static Frequency Divider
SHF 443 C 60 GHz -> f/2 Frequency Divider
SHF 641 A 56 GHz, f -> f/2 Static Frequency Divider
SHF C642 A 60 GHz, f -> f/2 Static Frequency Divider

Discontinued Clock Signal Amplifiers

P/N Type
SHF 816 17 – 27 GHz Clock Amplifier