SHF Communication Technologies AG
Wilhelm-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 803 P
Broadband Amplifier

Specifications – SHF 803 P
Symbol

Unit

Min

Typ

High frequency 3 dB point
High frequency 6 dB point

fHIGH

GHz40504553

Low frequency 3 dB point

fLOWkHz

Parameter

Gain

dB

16

17Output voltage adjust
Voltage
Current

VmA0Gain ripple

dB±1MaxConditions

35non-inverting

18-5

reduces gain by up to3 dB

10±1.5Temperature coefficient

TcdB/°C-0.05

Noise figure

NFdB

6

Output power at 1 dBcompression

P01dB

dBm
(V)

20 (6.3)
17 (4.5)<10 GHz<40 GHz

Output power at 2 dBcompression

P02dB

dBm
(V)

21 (7.0)
18 (5.1)<10 GHz<40 GHz

Output power at 3 dBcompression

P03dB

dBm
(V)

22 (7.8)
19 (5.6)<10 GHz<40 GHzfsat 5 GHz-15-10-10

on scope display
deconvoluted
output voltage ~4V>40 MHz <10 GHz>10 GHz <40 GHz>40 MHz <40 GHz

9109in operation
without power supply
20%...80%

12Input connector

0.55 A, reverse
voltage protectedusing 9 V supply
voltageV (1.85 mm) female

Output connector

V (1.85mm) male

Jitter550
Input return loss

S11dB

Output return loss

S22dB
dBm

Maximum input power
Rise time/fall time

-20tr/tfps

Supply voltage

V9Power consumption

W5Dimensions

mm

700
600

51x35x13.5
excluding connectors

The SHF 803 P is a modulator driver suitable for OC-768 applications. Together with highperformance, the amplifier is extremely easy to use: a single power supply is all that is neededfor operation.
A two stage amplifier design is employed using special monolithic microwave integrated circuits(MMICs) inside special carriers to achieve ultra wide bandwidth and low noise performance. The
custom made MMIC carrier is optimized for good input return loss between its interior and the 50
Ohm outside hybrid technology. The computer optimized broadband circuit is individually tuned
for minimum pass band ripple. A voltage regulator IC makes the amplifier insensitive to reversevoltage and line ripple.
SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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Input return loss
0-5-10S11 (dB)-15-20-25-30-35-40-45
-50
0

510

15

2025

30

35

40

45

5055

60

65

40

4550

55

60

65

Frequency (GHz)

Gain
30
25

S21 (dB)

20
15
10
5
0
0

5

10

15

2025

30

35

Frequency (GHz)20
10S21 (dB)0-10-20-30
-40
0.001

0.010

0.100

1.000

10.000Frequency (MHz)SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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Output return loss
0-5-10S22 (dB)

-15-20-25-30-35-40-45-50
051015202530354045505560

65404550556065

4045505560

65Frequency (GHz)Group delay
G roup delay variation (ps)200150100
500-50-100-150-200
05101520253035

Frequency (GHz)

Aperture of group delay measurement: 100MHz

Phase deviation (°)

Phase response120
1008060
40200-20-40-60-80-100-120
05101520253035

Frequency (GHz)SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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Eye diagrams at 44 Gbps
Measured with 50 GHz sampling module and precision timebase.

Input signal amplitude: 1.005 V

Output signal amplitude: 6.45 V

Input signal amplitude: 642 mV

Output signal amplitude: 4.53 V

Input signal amplitude: 317 mV

Output signal amplitude: 2.27V

SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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Eye diagrams at 2.5 Gbps

Input signal amplitude: 1.304 V

Output signal amplitude: 7.55 V

Input signal amplitude: 664 mV

Output signal amplitude: 5.00 V

Input signal amplitude: 332 mV

Output signal amplitude: 2.55 V

SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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Jitter and rise time measurements at 44 Gbps
Measured with 63 GHz sampling module and precision timebase.
Input signal
4.3 V output from SHF 803 P

Jitter: 303 fs; Rise time: 11.11 ps
To deconvolute the jitter, we use the following fomula:amplifier jitter = [(total jitter)2 - (input signal jitter)2]½This yields a jitter value of <600 fs.

Jitter: 553 fs; Rise time: 12.22 psSaturation power
Output Power (dBm )

24
23
22
21
20
19
18
1705

1015

20

25

30

3540

Frequency (GHz)Top (blue): 3 dB compression; Middle (red): 2 dB compression; Bottom (black): 1 dB compression

Gain reduction function
Gain Control (dB)

10-1-2-3-4012345Voltage (V)All SHF amplifiers have a feature which allows the output gain to be reduced by up to approximately
3 dB by applying a negative voltage to the gain reduction pin.
SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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4,8
7,15

4,9

16,542
Left view Available Options
01: DC return on input (max. ±1.75 V, max.
35 mA)

Power
supply11,3

Output adjust
0 ... -5 V

4,97

Input

Crossing
Control-5 V ... + 5 V

MT: Special tuning available to optimize
performance with E/O modulators
Positive gain slope of up to +3 dB possible

16,535Top view

04: Built-in bias tee on output (max. ±12 V,max. 220 mA)

Bias-T(Optional)

03: DC return on output (max. ±1.75 V, max.
35 mA)

Output7912,2

02: Built-in bias tee on input (max. ±12 V, max.
220 mA)42

For other configurations please contact us.

4,8
7,15
10,6
13,5

The following options cannot be combined:
01 and 02
03 and 04
02 and 04

Right view

MP: Matches the phase of two amplifiers

3151
48

332

Bottom view

M2,5x5 (4x)

SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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User Instructions
ATTENTION !
Electrostatic sensitive GaAs FET amplifier1.

To prevent damage through static charge build up, cables should be always discharged before
connecting them to the amplifier!

2.

Attach a 50 Ohm output load before supplying DC power to the amplifier!

3.

The supply voltage can be taken from any regular 9…12 V, 1 A DC power supply and can beconnected to the supply feed-through filter via an ON / OFF switch.

4.

The minimum supply voltage is 9 V. A higher one increases the power dissipation of the internal
voltage stabilizer.

5.

Using a 3 dB or 6 dB input attenuator will result in a 6 dB or 12 dB increase of the input return loss.
For minimal degradation of amplifier rise time, these attenuators should have a bandwidth
specification of greater than 50 GHz (V/ 1.85mm attenuators)!

6.

An input signal of about 1.6 Vpp equivalent to 8 dBm will produce saturated output swing of 7.8Vpp.

7.

Higher input voltages will drive the amplifier’s output stage into saturation, leading to waveform peakclipping.

8.

Saturated output voltages can only be used between 10 MHz and 40 GHz without damage while theamplifier is connected to a 50 Ohm precision load with a VSWR of less than 1.2 or better than 20 dB
return loss up to 26 GHz.

9.

While using a reflective load the output voltage has to be reduced to a safe operating level below
8Vpp according to the magnitudes of the reflections.
ATTENTION: At frequencies up to 20 GHz a capacitive load can be trans-formed to an inductive one
through transmission lines! With an output stage driven into saturation this may lead to theimmediate destruction of the amplifier (within a few ps)!

10. The input voltage should never be greater than 1.8 Vpp equivalent to 9 dBm input power.
The input voltage without DC power supplied to the amplifier should never be greater than 2 Vppequivalent to 10 dBm input power.
11. Hint: Pulse shape tuning of the amplifier has been performed after warm up at about 35°C casetemperature. Slightly more over and undershoot will be present at low temperature!

SHF reserves the right to change specifications and design without notice – SHF 803 P – Rev. 3.0 – 7/DEC/2004

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