Data Sheet SHF M804 C
SHF Communication Technologies AG

Data SheetSHF M804 CBroadband Amplifier

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V002 - Apr. 18, 2023 - Page 1

Data Sheet SHF M804 C
SHF Communication Technologies AGDescription
The SHF M804 C is a RoHS compliant ultra-broadband RF amplifier with a small footprint and a bandwidthof more than 66 GHz.
A distributed amplifier design is employed using our monolithic microwave integrated circuit (MMIC) insidespecial carriers to achieve the ultra-wide bandwidth.
This extreme bandwidth offers the capability to amplify binary signals of more than 100 GBaud while its
good linearity enables this amplifier to drive modulators and lasers for PAM, optical QAM, OFDM andanalog signals.

Ease of Use
Only a single 6 V supply is needed for operation.

Options
MP:

Phase matching of two amplifiers

WFWM:

1.0 mm female input and 1.0 mm male output connectors

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V002 - Apr. 18, 2023 - Page 2

Data Sheet SHF M804 C
SHF Communication Technologies AGSpecifications
Absolute Maximum Ratings
Parameter
Maximum RF Input

UnitdBmVSymbolMinTypMax

Comment4Pin max

1peak to peak voltage

DC Voltage at RF Input

V±9AC coupled input

DC Voltage at RF Output

V±8AC coupled output

Positive Supply Voltage

V5.767Gain Control Voltage

V-6-5…0+6will not exceed 0.02 A

Crossing Control Voltage

V-6-5…+5+6

will not exceed 0.02 A

Case Temperature°C

104050Tcase

max. 0.3 A
reverse voltage protected

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 3Data Sheet SHF M804 C
SHF Communication Technologies AG

Electrical Characteristics (At 40°C case temperature, unless otherwise specified)Parameter

UnitSymbolMin

High Frequency 3 dB Point

GHzfHigh66

Low Frequency 3 dB Point

kHzfLow

Gain

dB

S21

Max. Gain ReductiondB

Input Reflection

dB

S11

Output Reflection

dB

S22

Output Power at 1 dB
Compression

dBm

Output Power at 2 dB
Compression

dBm

Output Power at 3 dB
Compression

dBm

Rise Time / Fall Time

psVVV

P01dB
P02dB
P03dB

TypMaxCommentmeasured at Pin=-20 dBm

90
2122

2.5

3

measured at Pin=-20 dBm
measured at Pin=-20 dBm @ 500 MHz

4< 2.5 Vpp-9< 30 GHz-6< 65 GHz-10< 50 GHz-6< 65 GHz

12

10 MHz … 30 GHz

2.5

peak to peak voltage

14

10 MHz … 30 GHz

3.2

peak to peak voltage

16

10 MHz … 28 GHz

4peak to peak voltage
20%...80%, 2 V ≤ Vout ≤ 3 V @ 56 Gbps

tr/tf

6

Deconvoluted 1,2

10

Full Setup 12 V ≤ Vout ≤ 3 V @ 56 Gbps

Jitterfs

Crossing Control Range%

Power Consumption

WJRMS-4
1.5500Deconvoluted 1,2600

Full setup 14> 2.3 Vpp
typ. 6 V / 0.25 A

1Measured with the following setup: SHF 613 A DAC -> DUT (SHF M804 C) -> Agilent 86100C with 70 GHz sampling head and precision time base.

2Calculation based on typical results of setup without DUT :𝑡𝑟 /𝑡𝑓 𝑑𝑒𝑐𝑜𝑛𝑣𝑜𝑙𝑢𝑡𝑒𝑑 = √(𝑡𝑟 /𝑡𝑓 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (𝑡𝑟 /𝑡𝑓 𝑠𝑒𝑡𝑢𝑝 𝑤/𝑜 𝐷𝑈𝑇 )2 = √(𝑡𝑟 /𝑡𝑓 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − 7 𝑝𝑠 2

2𝐽𝑅𝑀𝑆 𝑑𝑒𝑐𝑜𝑛𝑣𝑜𝑙𝑢𝑡𝑒𝑑 = √(𝐽𝑅𝑀𝑆 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (𝐽𝑅𝑀𝑆 𝑠𝑒𝑡𝑢𝑝 𝑤/𝑜 𝐷𝑈𝑇 ) =√(𝐽𝑅𝑀𝑆 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − 370 𝑓𝑠 2

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V002 - Apr. 18, 2023 - Page 4

Data Sheet SHF M804 C
SHF Communication Technologies AG

Mechanical Characteristics
Parameter

Unit

SymbolMin

TypInput ConnectorΩ50

Output ConnectorΩ50

Dimensions

mmWeightg3

MaxConditions
1.85 mm female 3
Option WFWM: 1.0 mm female
1.85 mm male 3
Option WFWM: 1.0 mm malesee page 12 to 1420

without heatsink

55

with heatsink

Other gender configurations are available on request.

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V002 - Apr. 18, 2023 - Page 5

Data Sheet SHF M804 C
SHF Communication Technologies AG

Typical S-Parameters

Aperture of group delay measurement: 160 MHz
Printed S-Parameters are part of the inspection report for each individual amplifier. However, unless option
WFWM is ordered, the maximum frequency in the inspection report is 70 GHz.

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V002 - Apr. 18, 2023 - Page 6

Data Sheet SHF M804 C
SHF Communication Technologies AG

Typical Noise Figure
The measurement had been performed using a FSW85 Spectrum Analyzer by Rhode & Schwarz. The noise
figure defines the degradation of the signal-to-noise ratio when the signal passes the amplifier. An ideal
amplifier would amplify the noise at its input along with the signal. However, a real amplifier adds someextra noise from its own components and degrades the signal-to-noise ratio. Please note that this applies
to small signals only. When the amplifier is used close to or in its saturation region additional non-linear
effects will impact the signal-to-noise ratio and the signal waveform.
1098

Noise Figure [dB]7654321005101520253035404550Frequency [GHz]SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 7

Data Sheet SHF M804 C
SHF Communication Technologies AG

Typical Waveforms
The measurements below had been performed using a SHF 12105 A Bit Pattern Generator, a PAM-MUX ora DAC and one of the scopes mentioned below. The outputs of the SHF module had been connected
directly to the amplifier input. The output of the amplifier had been connected with a 20 dB attenuator(SHF ATT110 A) to the scope's input.
Please note that only the measurements taken with the Agilent DCA 86100 will be part of the inspection
report.

Measurements with:• SHF 616 C PAM-MUX generating PAM4 signals (PRBS 213-1)• Keysight DCA N1000A, Precision Timebase & 122 GHz Sampling Module (N1046A)• Linear FFE (7-Tap with 2 pre cursors) applied

80 Gbaud (160 Gbps) 200 mV Input Signal

80 Gbaud (160 Gbps) 2.5 V Output Signal

100 Gbaud (200 Gbps) 200 mV Input Signal

100 Gbaud (200 Gbps) 2.5 V Output Signal

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V002 - Apr. 18, 2023 - Page 8

Data Sheet SHF M804 C
SHF Communication Technologies AGMeasurements with:• SHF 616 C PAM-MUX generating binary signals (PRBS 213-1)• Keysight DCA N1000A, Precision Timebase & 122 GHz Sampling Module (N1046A)• Linear FFE (7-Tap with 2 pre cursors) applied

80 Gbps 200 mV Input Signal

80 Gbps 2.6 V Output Signal

100 Gbps 200 mV Input Signal

100 Gbps 2.3 V Output Signal

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 9

Data Sheet SHF M804 C
SHF Communication Technologies AGMeasurements with:• SHF 613 A DAC generating binary signals (PRBS 231-1)• Agilent DCA 86100D with Time Base Module 86107A and Sampling Head 86118A• No Filter applied

56 Gbps 170 mV Input Signal

56 Gbps 2.4 V Output Signal

56 Gbaud 160 mV Input Signal

56 Gbaud 2.3 V Output Signal

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 10

Data Sheet SHF M804 C
SHF Communication Technologies AGHandling Instructions
To operate the amplifier a positive supply voltage of approximately +6 V must be applied.
The gain can be adjusted by applying a voltage of 0 to -5 V. If this pin is left open, the amplifier will havemaximum gain. By reducing the gain the crossing will shift. Typical characteristics are shown in thefollowing diagram for an input voltage of 0.2 V with 50% crossing.

642

Gain [dB]0-2

Crossing shift[%]-4-60-1-2-3-4-5

Gain Control Voltage [V]The crossing can be adjusted by applying a voltage of -5 to +5 V. If this pin is left open a crossing ofapproximately 50 % is achieved. The range depends on the input voltage. Typical characteristics are shownin the following diagram for input voltages of 0.2, and 0.4 V with 50% crossing.

7065

Crossing [%]60

55
500.2 V

450.4 V40
3530-505Crossing Control Voltage [V]SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 11

Data Sheet SHF M804 CSHF Communication Technologies AG

Mechanical Drawing with Heat Sink
M4x4mm122x34

27
14.3
10.6
9.5

46243nc

Crossing-5 V ... +5 V

12.3+6 V
0.3 A

Gain
0 ... -5 V

22dB

VFVM

SHF M804 C58897

90 kHz - 66 GHz
P03dB: 16 dBm

76

2

2.63 451

2.7

12.3

1120.9
25.8

10.6
9.5

6.5

55
24.8
19.9
10Pos.
1
23
45
67Connector
Input
OutputGain control+6 V / 0.3 A
GND
Crossing controlnc

All dimensions in mm

Pin assignment might change if a bias tee option is chosen.
For permanent mounting remove the heat sink from the amplifier. In that case, please ensure thatadequate cooling of the amplifier is guaranteed. It is recommended to use thermal paste or a thermal gap
pad for the mounting. In order to separate the heat sink from the amplifier, remove the four screws on theheat sink. Please note, thermal gap pad is used between the heat sink and the amplifier housing.

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V002 - Apr. 18, 2023 - Page 12

Data Sheet SHF M804 CSHF Communication Technologies AG

Mechanical Drawing without Heat Sink

13.64xM2x3.

2mm

7

9.8
6.1
522.4

3 4512.3nc

76

14Crossing-5 V ... +5 V

SHF M804 C+6 V
0.3 A

Gain
0 ... -5 V22dB

VFVM

58897

90 kHz - 66 GHz
P03dB: 16 dBm

220

1

4.7

2

4.7

12.3
510
19.9
24.8
272x24.8
19.9
10

6.1
52

Pos.
1
23
4567

M
2x4mmConnector
Input
OutputGain control+6 V / 0.3 AGND
Crossing controlnc

All dimensions in mm

Please ensure that adequate cooling of the amplifier is guaranteed.

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 13

Data Sheet SHF M804 C
SHF Communication Technologies AGMechanical Drawing without Heat Sink and Option WFWM
4xm

13.62m
3.
2x
M

79.8
6.1
5

22.4

3 4
5nc

14Crossing-5 V ... +5 V

12+6 V
0.3 A

Gain
0 ... -5 V

22dB

WFWM

SHF M804 C59152

90 kHz - 66 GHz
P03dB: 16 dBm

76

2201

4.7

24.7

12.1
510
19.9
24.8
272xm
4m2xM

24.8
19.9106.152Pos.
1234567Connector
Input
OutputGain control+6 V / 0.3 A
GND
Crossing control
ncAll dimensions in mm

Please ensure that adequate cooling of the amplifier is guaranteed.

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 14

Data Sheet SHF M804 C
SHF Communication Technologies AG

User Instructions
Electrostatic sensitive device
1.

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

2.

First make the connections between amplifier, signal source and a 50 Ohm output load before
supplying DC power to the amplifier!

3.

The supply voltage can be taken from any regular 5.7…7 V, 0.5 A DC power supply and can beconnected to the supply feed-through filter via an ON / OFF switch. Do not increase the supply voltage
slowly from 0!

4.

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 ofgreater 65 GHz!

5.

While using a reflective load the output voltage has to be reduced to a safe operating level according
to the magnitudes of the reflections.

6.

ATTENTION: At radio frequencies a capacitive load can be transformed to an inductive one throughtransmission lines! With an output stage driven into saturation this may lead to the immediate
destruction of the amplifier (within a few ps)!

7.

The input voltage should never be greater than 1 Vpp equivalent to 4 dBm input power.

8.

In case a bias tee is connected to the amplifier, please note that abrupt connection or disconnection of
the RF port of such bias tees may cause harmful transients. Therefore, it is always recommended notto connect or disconnect bias tees under bias voltage. For example, ramp down the bias to 0 V before
lifting a waver prober.

9.

For the DC-connections flexible cable 0.2 … 0.5 mm2 / AWG 24 … 20 are recommended. A maximum
soldering temperature of 260 °C for 3 seconds is recommended for the feed-through. The ground pin
requires significantly more heat as it is connected to the solid housing.

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 15

Data Sheet SHF M804 C
SHF Communication Technologies AG

SHF Communication Technologies AG
Wilhelm-von-Siemens-Str. 23 D | 12277 Berlin | Germany+49 30 772 051 0
sales@shf-communication.com
www.shf-communication.com

SHF reserves the right to change specifications and design without notice
V002 - Apr. 18, 2023 - Page 16