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 C961 A
Phase Shifter with Clock-Doubler

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 1/13

Description
The SHF C961 A is a broadband digital controlled delay line plus a broad band clock distribution.
The delay line features a maximum delay of 70 ps with 100 fs resolution. This phase-controlled signal isprovided at five outputs:

One output at the input frequency
Two outputs at double the input frequency
Two amplified outputs at double the input frequency (level-controlled)

Features

Broadband 70ps Delay Line with a 100 fs step size operating from 2 GHz up to 67 GHz
Several outputs with different functionality
Controlled by intuitive graphical user interface SHF Control Center (SCC) via USB
Controlled by intuitive graphical user interface BERT Control Center (BCC) via USB

Applications
Computer controlled phase adjustments of clock signals up to 67 GHz
Clock signal distribution in high-speed telecom setups
Precise delay control for automated measurements

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 2/13

Block Diagram

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 3/13

Accessories+12 V Power Supply Desktop Adapter
Functional Earth Cable
Mini-USB cable

Absolute Maximum Ratings
Parameter

Unit

SymbolInput Amplitude

mVVClk inExternal DC Voltage on
RF Input PortVVDC inExternal DC Voltage on
RF Output PortsV

DC Supply Voltage

VMin.

Typ.

Max.

Comment1000

Peak-to-Peak-6+6AC coupled port

VDC out-6+6AC coupled ports

Vcc

0+14

Input Parameters

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 4/13

Specifications – SHF C961 A
Parameter

Unit

Symbol

Min.

Typ.

Max.

Comment

Delay
Adjustable Delayps

Step Size

fs

070
100

Input Frequency
CLK InGHz

fin

2mVpp

Vin200

CLK OutGHzfout

CLK x2 OutGHz

CLK x2 LV Out35

Input Amplitude
900AC coupled
Single ended

235

fin

fout3060

fin x2GHz

fout3067

fin x2

CLK OutmVpp

Vout

500850AC coupled
Single ended

CLK x2 OutmVpp

Vout

680

1100

AC coupled
Single ended

CLK x2 LV OutmVpp

Vout

250650AC coupled
Single ended

Input Amplitude

450

Output Frequency

Output Amplitude

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 5/13

Specifications – SHF C991 A
Parameter

Unit

Symbol

Min.

Typ.

Max.

Supply Voltage

VVcc+11.5+12.0+12.5

Supply Current

AIccCommentPower Requirement

1.2
1.5

Without heat sink
With heat sink+fan
Without heat sink
With heat sink+fan@ VCC = +12 VWPd

14.4
18

Output Voltage Fan

VVFan+12V+12

Output Current Fan

AIFan+12V

0.26

Output Frequency Fan

HzfFan+12V

30

Input Tacho Fan

VVFan Tacho

3.3

Power Dissipation
Integrated Fan Control

1Mechanical Characteristics
Clock In

Ω50

2.92 mm (K) female

CLK OutΩ50

2.92 mm (K) female

CLK x2 OutΩ

50

1.85 mm (V) female

CLK x2 LV OutΩ

50

1.85 mm (V) female

Dimensions

mmWeightgSee Outline Drawing
pages 12 / 13
162480Without heat sink
With heat sink+fanConditions
Operating Temperature

1°CTambient

1535

Use only with the supplied heat sink and fan!

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 6/13

Typical Output Amplitudes
The measurements below have been performed using an Anritsu signal generator (MG3697C) and anAgilent Digital Communication Analyzer (86100A) with a 70 GHz Sampling Module (86118A) and a Time
Base (86107A). The outputs of the module had been connected directly to the DCA input. Input power ofthe clock signal is 0 dBm (630 mVpp) .

VPP [mV]typ. Vpp @ CLK Out
1500
1400
1300
1200
1100
1000
900
800
700
600500400300200100001020fout [GHz]3040

typ. Vpp @CLK x2 LV Out
1000
900800
VPP [mV]

700
600
500
400300200
100030

4050
fout [GHz]60Anritsu is a registered trademark of Anritsu Corporation,  Agilent is a registered trademark of Keysight Inc.

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022Page 7/13

Typical Output Amplitudes
The measurements below have been performed using an Anritsu  signal generator (MG3697C) and anAgilent Digital Communication Analyzer (86100A) with a 70 GHz Sampling Module (86118A) and a Time
Base (86107A). The outputs of the module had been connected directly to the DCA input. Input power ofthe clock signal is 0 dBm (630 mVpp).

VPP [mV]typ. Vpp @Clk x2 Out
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400300200
1000304050
fout [GHz]60Anritsu is a registered trademark of Anritsu Corporation,  Agilent is a registered trademark of Keysight Inc.

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 8/13

Typical Output Waveforms @ CLK Out
The measurements below have been performed using an Anritsu  signal generator (MG3697C) and anAgilent Digital Communication Analyzer (86100A) with a 70 GHz Sampling Module (86118A) and a Time
Base (86107A). The outputs of the module had been connected directly to the DCA input. Input power ofthe clock signal is 0 dBm (630 mVpp).

fout = fin

fout = fin

2 GHz Output signal

8 GHz output signal

fout = fin

fout = fin

16 GHz output signal

24 GHz output signal

fout = fin

fout = fin

32 GHz output signal

35 GHz output signal

Anritsu is a registered trademark of Anritsu Corporation,  Agilent is a registered trademark of Keysight Inc.

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 9/13

Typical Output Waveforms @ CLK x2 LV Out
The measurements below have been performed using an Anritsu  signal generator (MG3697C) and aAgilent Digital Communication Analyzer (86100A) with a 70 GHz Sampling Module (86118A) and a Time
Base (86107A). The outputs of the module had been connected directly to the DCA input. Input power ofthe clock signal is 0 dBm (630 mVpp).

fout = 2 x fin

fout = 2 x fin

32 GHz Output signal

40 GHz output signal

fout = 2 x fin

fout = 2 x fin

48 GHz output signal

56 GHz output signal

fout = 2 x fin

fout = 2 x fin

64 GHz output signal

66 GHz output signal

Anritsu is a registered trademark of Anritsu Corporation,  Agilent is a registered trademark of Keysight Inc.

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 10/13

Typical Output Waveforms @ CLK x2 Out
The measurements below have been performed using an Anritsu  signal generator (MG3697C) and aAgilent Digital Communication Analyzer (86100A) with a 70 GHz Sampling Module (86118A) and a Time
Base (86107A). The outputs of the module had been connected directly to the DCA input. Input power ofthe clock signal is 0 dBm (630 mVpp).

fout = 2 x fin

fout = 2 x fin

32 GHz Output signal

40 GHz output signal

fout = 2 x fin

fout = 2 x fin

48 GHz output signal

56 GHz output signal

fout = 2 x fin

fout = 2 x fin

64 GHz output signal

66 GHz output signal

Anritsu is a registered trademark of Anritsu Corporation;  Agilent is a registered trademark of Keysight Inc.

SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 11/13

Mechanical Drawing
cbdef7.711.4aØ2.2
6.4

3.5
43.9
49
52.3
66.2
63.5

23.5
13.6

304x1

Ø2.
7
9.5

6.4

13.6

Clk In
Clk Out

2

Clk x2 Out

3

Clk x2 LV Out

46

Clk x2 Out

5

Clk x2 LV Outx2

657471

Delay

5050

SHF C961 Ag3535

Phase Shifter with Clock Doubler

XXXXX

SHF Communication
Technologies AGFan

3USB+12 V DC +12 V

GND

365760Pos

PortConnector

1

Clk In2.92mm (K) female

PortConnector

2

Clk Out

2.92mm (K) femaleaFunctional earth (FE)3

Clk x2 Out

1.85mm (V) femalebMini-USB

4

Clk x2 LV Out 1.85mm (V) female

cPower5

Clk x2 LV Out 1.85mm (V) female

dFan+12V

1.85mm (V) female

eFan TachofGNDgService6

Clk x2 Out

all dimensions in mm
SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 12/13

Mechanical Drawing with Heat Sink

acdef

42.7
46.4

b6.1

3.3
44.2
49.3
52.6
66.4
63.8

58.5
48.6
35

30.3
48.6

1

9.5

6.1

Clk In
Clk Out2

Clk x2 Out3

Clk x2 LV Out4Delay6Clk x2 Out

5

Clk x2 LV Outx2

SHF C961 Ag

Phase Shifter with Clock Doubler

101

XXXXX

86

86

SHF Communication
Technologies AG+12 V DC +12 V

GND

7171

FanUSB

60.5Pos

PortConnector

1

Clk In2.92mm (K) female2

Clk Out

2.92mm (K) female3

Clk x2 Out

1.85mm (V) female

PortConnectoraFunctional earth (FE)bMini-USBc

PowerdFan+12V

4

Clk x2 LV Out 1.85mm (V) femalee

Fan Tacho5

Clk x2 LV Out 1.85mm (V) femalef

GND

1.85mm (V) female

gService

6

Clk x2 Out

all dimensions in mm
SHF reserves the right to change specifications and design without notice – SHF C961 A - V001 Oct 13 2022

Page 13/13