SHF Communication Technologies AG
Wilhelm-von-Siemens-Str. 23D • 12277 Berlin • Germany
Phone +49 30 772051-0 • Fax +49 30 7531078
E-Mail: sales@shf-communication.com • Web: www.shf-communication.com

Datasheet
SHF C701 A50 GHz / 64 Gbps
2:2 RF Cross Switch

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 1/14

Description
The SHF C701 A is a dual 2:2 broadband RF cross switch, operating form 100 kHz up to 50 GHz for clock
signal, and up to 64 Gbps for NRZ Data signal. It offers high quality output signals together with a compact
size and ease of operation.
With the 2:2 cross switch, it is possible to connect any of the 2 ports at the left-hand side of the device(switch A) with one of the ports on the right-hand side of the device (switch B). Ports on the same side(switch) cannot be connected to each other. It operates in both directions, i.e. the signal can be applied toor taken from a port on each side.
An option with low frequency compensation (LFC) is also available.

FeaturesBroadband operation up to 50 GHz
Up to 64 Gbps NRZ Data signal
Bi-directional
Low power consumption
Single-ended operation
USB interface
Simple, easy to use GUI
1
Automated measurements by using different software environments easily possible

Applications
Broadband test and measurement equipment

Block Diagram

1To operate the switch, intuitive and well documented plain text commands are sent and received via USB. Thus the device can beoperated either by the complementary software or automated by any programming language which can communicate with serial devices.
SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 2/14

Accessories
 Functional earth cable Mini-USB cable

Options
Option – Low Frequency Compensation (LFC)
The Low Frequency Compensation option is offered in order to reduce the frequency response roll-off.
Due to a lower loss at the lower frequencies there is a typical role-off of 12 dB between 1 MHz and 50
GHz. The compensation reduces the roll-off to approximately 9 dB over the frequency range, but at thesame time increases the insertion loss by roughly 3 dB at the lower frequency range.

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 3/14

Absolute Maximum Ratings
Parameter

Unit

SymbolInput Power

dBm

Pin

External DC Voltage on RF
PortsV

VDCext

Min.

Typ.

Max.

Comment

Input Parameters23-6+6AC coupled ports

Max.

Comment

100

Clock Signal

Specifications – SHF C701 A
Parameter

Unit

SymbolMinimum Input Frequency

kHzfminMaximum Input Frequency

GHzfmax

BandwidthGHz

f3dB
f6dB

Data Rate

Gbps

Min.

Typ.

Performance50

Clock Signal2438Clock Signal

64

Data Signal
36912591115< 24 GHz
24 - 38 GHz
38 - 42 GHz
42 - 50 GHz

Insertion LossdBIsolation

dB3040< 50 GHz

Return LossdB

510< 50 GHz

Settling Timems

Switching Transient
Overshoot2mV

1±300

Output Parameters
3

Jitter RMS

fs

JRMS

See note

Duty Cycle%

DCSee note32

Switching Transient Overshoot refers to a voltage overshoot measured on the module’s ports while toggling the switch

3No degradation in jitter or duty cycle performance were observed for sine wave signals

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 4/14

Parameter

UnitSymbol

Min.

Typ.

Max.

Comment

Supply Voltage

VVcc+4.40+5.00+5.25

Mini USB

Supply CurrentmAIcc

65

Power Dissipation

mW

Pd325

@ VCC = +5 V

Power Requirement

Mechanical Characteristics
RF A1

Ω

50

1.85 mm (V) female

RF A2

Ω

50

1.85 mm (V) female

RF B1

Ω

50

1.85 mm (V) female

RF B2

Ω

50

1.85 mm (V) female

DimensionsmmWeightg

See Outline Drawing
90Conditions
Operating Temperature°C

Tambient1535Specifications – SHF C701 A Option LFC
Parameter

Unit

SymbolBandwidthGHz

f3dB
f6dB

Insertion LossdB

Return LossdB

Min.

Typ.

Max.

CommentPerformance
3240
61012510Clock Signal
81216< 32 GHz32 - 40 GHz
40 - 50 GHz< 50 GHzSHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 5/14

Typical RF Performance @ +25°C
C701 A (no option)
The measurements below had been performed using a VNA.

RF A2 – RF B2
RF A2 – RF B1
RF A1 – RF B2
RF A1 – RF B1Insertion Loss

RF B2 Isolation
RF B1 Isolation
RF A2 Isolation
RF A1 Isolation

Isolation

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 6/14

RF A2 – RF B2
RF A2 – RF B1
RF A1 – RF B2
RF A1 – RF B1

Return Loss (Switch A)

RF A2 – RF B2
RF A2 – RF B1
RF A1 – RF B2
RF A1 – RF B1

Return Loss (Switch B)

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 7/14

C701 A (option LFC)
The measurements below had been performed using a VNA.

RF A2 – RF B2 (LFC)
RF A2 – RF B1 (LFC)
RF A1 – RF B2 (LFC)
RF A1 – RF B1 (LFC)
RF A2 – RF B2
RF A2 – RF B1
RF A1 – RF B2
RF A1 – RF B1

Insertion Loss – LFC compared to “no Option”

RF A2 – RF B2 (LFC)
RF A2 – RF B1 (LFC)
RF A1 – RF B2 (LFC)
RF A1 – RF B1 (LFC)

Insertion LossSHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 8/14

RF A2 – RF B2 (LFC)
RF A2 – RF B1 (LFC)
RF A1 – RF B2 (LFC)
RF A1 – RF B1 (LFC)

Return Loss (Switch A)

RF A2 – RF B2 (LFC)
RF A2 – RF B1 (LFC)
RF A1 – RF B2 (LFC)
RF A1 – RF B1 (LFC)

Return Loss (Switch B)

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 9/14

RF B2 Isolation (LFC)RF B1 Isolation (LFC)
RF A2 Isolation (LFC)
RF A1 Isolation (LFC)

Isolation

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 10/14

Typical Output Waveforms
Clock Output Signals
The measurements below had been performed using an Anritsu signal generator (3697C) and an Agilent
Digital Communication Analyzer (DCA) with a Precision Timebase Module (86107A) and a 70 GHz
Sampling Module (86118A). The outputs of the Switch module had been connected directly to the DCA
input. Input power of the clock signal is 0 dBm (630 mVpp).

5 GHz input signal

5 GHz output signal

50 GHz input signal

50 GHz output signal

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 11/14

Data Output Signals
The measurements below had been performed using a SHF 12105 A Bit Pattern Generator and an Agilent
Digital Communication Analyzer (DCA) with a Precision Timebase Module (86107A) and a 70 GHz
Sampling Module (86118A). The outputs of the Switch module had been connected directly to the DCA
31
input. Input Data amplitude is ~630 mVpp, and it is a PRBS 2 -1 signal.

50 Gbps input signal

50 Gbps output signal

50 Gbps output signal – Option LFC

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 12/14

64 Gbps input signal

64 Gbps output signal

64 Gbps output signal – Option LFC

SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 13/14

Outline Drawing – Moduleb ca

Ø2.2

4x
Ø2.7

4028

RF A2

RF B1

RF A1

RF B2324

SHF C701 A35455451
453512:2 RF Cross Switch

XXXXX

SHFCommunication
Technologies AGUSB

23.534PortConnector

1RF A1

1.85mm (V) female

2RF A2

1.85mm (V) female

3RF B1

1.85mm (V) female

4

RF B2

1.85mm (V) female

6.4

13.6

Pos

13.6

6.4

All dimensions are in mm

PortConnector

aMini-USB

bncc

Functional earth (FE)SHF reserves the right to change specifications and design without notice – SHF C701 A - V002 – December 02, 2020 Page 14/14