RF & Microwave
Modules and Instruments
Synthesizers
Clock Distributions
Switches
Phase Shifters
Clock Signal Amplifier
Frequency Dividers & Multipliers
Signal Shaping / Filter
Support
Synthesized Signal Generators (Synthesizers)
| P/N | Type | Operational Range |
|---|---|---|
| SHF 78124 A | 32 | Synthesized Signal Generator (Synthesizer) | 1… 32.8 GHz |
| SHF 78124 A | 64 | Synthesized Signal Generator (Synthesizer) | 1… 64.0 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 C643 A | f -> f/2 Static Frequency Divider | 40… 80 GHz | 20… 40 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 | Further Media |
|---|---|---|---|
| SHF C683 A | Analog FIR Filter (Equalizer) | 55 GHz | Video |
| 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
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.
Videos
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Screen Cast: Equalizing a 112 Gbps PAM4 Signal
In this screen cast we show how a 56 GBaud (112 Gbps) PAM4 signal can be optimized by the use of our SHF C683 A FIR Filter and our SHF-Optimizer software package.
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)
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 |
