SHF Communication Technologies AGWilhelm-von-Siemens-Str. 23 • Aufgang D • 12277 Berlin – Marienfelde • Germany
Phone ++49 30 / 772 05 10 • Fax ++49 30 / 753 10 78
E-Mail: sales@shf.biz • Web: http://www.shf.biz

Datasheet
SHF 5005 A
60 Gbps 4:1 Multiplexer

Description
The SHF 5005 A multiplexer generates a data stream of four times the input data rate from four
data signals and one clock signal by using a single 4:1 multiplexer. A single master clock signal ofhalf the output data rate is used to drive the multiplexer. Inside the instrument, all data and clocklines are adjusted to allow broadband operation from 2 Gbps to over 60 Gbps output data rate. A
computer controlled delay line makes it possible to shift the phase of the clock with respect to theinput data.
On the front panel, there is a clock/2 output, supporting the use of a pattern generator. The
60 Gbps complementary output signals can be adjusted from 2.0 V to 3.0 V. For additional
flexibility, the crossing point of the output eyes can be adjusted left and right and up and down,
giving the user additional control over the signal.
Each output driver amplifier is individually tuned for optimum pulse performance at the end of a
0.5 m low loss, high precision 50 GHz cable assembly, of which two pieces are supplied with thisinstrument. The very low rise time of the multiplexer circuit, in connection with the pulse shaping
45 GHz amplifiers, allows the generation of excellent 60 Gbps eye diagrams, facilitating easy
testing of ultra high speed components and their assembly into complex communication systems.
A low jitter option is also available, which offers very low jitter by removing the output amplifiers. A
data splitter can be built into the instrument which splits a single input signal into four data streams
for the multiplexer. Delay lines are fitted so that the data streams are shifted relative to each otherbefore multiplexing.

Features
Wideband operation of over 60 Gbps
Very low risetime
Low overshootHigh amplitude complementary data outputs
Data outputs can be individually disabledComputer controlled mechanical delay line
All functions microprocessor controlled
External GPIB control
Ruggedized 1.85 mm male output connectors
High precision, low loss 50 GHz cable assemblies included
Adjustable vertical crossing point
Adjustable clock bias to change symmetry of eye length
Adjustable output levels

Options
Option LJ: Low jitter – jitter below 500 fs by removal of output amplifiers (see eye diagrams formeasurement conditions)
Option AT: 65 GHz selected attenuator to match output level to input level of SHF 806 E, SHF
810 or the SHF 5003 range of optical transmitters
Option DS: Internal 1:4 data splitter including adjustable delay lines.

SHF reserves the right to change specifications and design without notice - SHF 5005 A – Rev. 2.1 – 31/MAR/2004

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Functional Block Diagram

SHF reserves the right to change specifications and design without notice - SHF 5005 A – Rev. 2.1 – 31/MAR/2004

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Specifications – SHF 5005 AParameter
Clock input (AC coupled)
Frequency range
S11
Input level
Clock delay range
Max. AC input
Max. DC input

Unit

Min.

GHz
dB
Vpp
ps
V pp (dBm)V

1

Data inputs (AC coupled)
Bit rate
S11
Input levelMax. AC input
Max. DC input

Gbps
dB
Vpp
Vpp (dBm)
V

0.5

Clock output (AC coupled)
Output level
S22

Vpp
dB

0.4

Gbps
dBm
Vamp2

Data outputs (AC coupled)
Output bit rate
Electrical data outputs

Output jitter
Maximum DC level
Rise/fall time
S22fsV
psdBGeneral
Power supply

VPower consumption
WeightDimensions (LxWxH)
Operating temperature
Clock input/output
connectors
Data input connectors
Data output connectors

Wkgmm
°C

Typ.

Max.
30
-100.8160
1 (4)160.40half bit rate

in 1ps steps

15-100.8
1 (4)
160.4

0.8-1060
143800168-1090
180

Conditions

110
2306010.5135270

adjustable from
2…3 V in 100mV
steps.
accuracy ±200mV(at 50Gbps)
RMS
20% to 80%

47…73 Hz472x365x1101035
2.9 mm (K)ruggedized male
SMA female
1.85 mm (V)ruggedized male

SHF reserves the right to change specifications and design without notice - SHF 5005 A – Rev. 2.1 – 31/MAR/2004

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Option LJ
Parameter
Output jitter
Output data level

Unit
fsdBm
mVamp

Min.

Typ.
450

300

400

Unit
dBm
VnsMin.

Typ.

psps0Max.
500

Conditions
RMSMax.
41Conditions

Option DS
Parameter
Max input power
Delay of channel B
Delay of channel C
Delay of channel D
Delay adjustment
Positioning error

24
6

relative to channelA160

in 1ps steps

0.4

Output Waveforms
The following eye diagrams were measured using an Agilent 86100 A digitizing oscilloscope(including enhanced trigger option) with a 70 GHz plug-in sampling head.
Note: The 60 Gbps measurements were taken without the precision time base, as it was unable tolock at this frequency.
All results measured at the end of a 0.5 m cable (supplied with instrument)

10 Gbps

40 Gbps

50 Gbps

60 Gbps (without precision timebase)

SHF reserves the right to change specifications and design without notice - SHF 5005 A – Rev. 2.1 – 31/MAR/2004

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Option LJ

40 Gbps

50 Gbps

60 Gbps (without precision timebase)

Clock output

SHF reserves the right to change specifications and design without notice - SHF 5005 A – Rev. 2.1 – 31/MAR/2004

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