MICROWAVE SYSTEMS MS010620 User manual

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
MS010620
Operation Manual

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Specification T = 25°C
Operating Frequency
1…6 GHz
RF Saturated Output Power
33…41 W
RF Output Power @ at Pin= 3 dBm
30…40 W
Small Signal Gain
55 –65 dB
Small Signal Gain Flatness
3 dB Typ.
Input VSWR
2.0:1 Max
Operating Voltage
+27 V
Maximum Operating Current
7 A 1)
RF input overdrive
15 dBm Max
Signal Source VSWR
2.0:1 Max
Output Load VSWR
2.0:1 Max
Power Detector Load
1 kOhm
RF connector, Input / Output / Impedance
SMA Female / 50 Ohm
Cooling
External Heatsink
Dimensions
168.1 x 78.2 x 23.8 mm
Weight
0.45 kg
Operating Temperature (baseplate)
-55…75 °C
Storage Temperature
-65…85 °C
Relative Humidity
98 %
1) Maximum Operating Current can grow by 10% at case temperature below
T = -20°C

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Amplifier Use:
The amplifier operational baseplate temperature must be within the operational
temperature range stated in the amplifier operation manual. Depending on the design and
thermal requirements, using a heatsink with cooling fan is always recommended for safe
reliable operation. A heat sink without a cooling fan may also be used. Damage caused from
overheating will void the warranty.
Confirm the system is designed and calibrated for 50 Ohms. Any impedance mismatch may
cause performance issues.
Confirm the amplifier output load is matched for a 50 Ohm impedance and will not exceed
the maximum output load VSWR limit for the amplifier. Exceeding the maximum output
load VSWR limit will result in reflected signal that could damage the amplifier and void the
warranty.
Confirm adequate system grounding is established. The DC power supply and amplifier
must have a common ground in order to operate properly.
Power supply must be able to provide adequate current for the amplifier. Power supply
should be able to provide 1,5 times the typical current or 1,2 times the maximum current
(whichever is greater).
As long as the input and output ports of the amplifier are connected to a 50 Ohm load and
RF-signal is applied, the amplifier can be powered up with DC voltage.
Ensure that the power and DC voltage is off then connecting or disconnecting the input or
output of the amplifier.
Exceeding absolute maximum ratings shown will damage the amplifier.
The amplifier is static sensitive. Always follow ESD rules when working with amplifier.

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Connection Procedure:
1) RF connectors. Connect «RF IN»and «RF OUT»to 50 Ohm source / load.
2) X2 Connector. Connect Pin#B to DC Ground. Connect Pin#A on X2 to DC +27V biasing. Pin#1
and Pin#2 leave unconnected.
3) X1 Connector. Connect DC +5V/0V (TTL Logic High/Low) to Pin#9 and DC Ground to Pin#7.
Connect DC +5V/0V (TTL Logic High/Low) to Pin#1 –Pin#5 to enable control of built-in
attenuator.
4) Turning on the amplifier. Enable +27V DC (X2) and then enable DC +5V Pin #9 (X1) to turn on
the RF signal.
The device will have maximum available gain at these conditions. To turn on the attenuator bit
enable DC +5V to the necessary pin (Pin#1 –Pin#5 X1). It is possible to combine and use multiple
bits at the same time.
Connectors
RF IN
RF input. Connect to 50 Ohm source. Do not exceed the maximum input power of +15 dBm, higher
input power may damage the amplifier.
RF OUT
RF output. Connect to 50 Ohm load.
Pin#A (X2) / +26…+30 V DC power supply input
Use an appropriate power supply with an output voltage of +26…+30 V DC and an output current
of 15 A.
Pin#B (X2)
Must be connected to the ground (return) connector of the power supply unit.
Pin#1, Pin#2 (X2)
No connection.

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Pin#1 –Pin#5 (X1)
Enable control of built-in attenuator. To turn on the attenuator bit enable DC +5V (TTL Logic
High) to the necessary pin.
Pin#1 –Bit 16 control
Pin#2 –Bit 8 control
Pin#3 –Bit 4 control
Pin#4 –Bit 2 control
Pin#5 –Bit 1 control
Typical small signal gain (turn on the attenuator bits)
Pin#6 (X1) Output voltage of built-in output power detector
The output provides a DC voltage proportional to the forward output power of the amplifier.
Load Pin#6 on X1 connector at 1 kOhm and measure output power level using DC-tester or
multimeter.
Typical power detector level vs. frequency @ Pout = 43 dBm
0
5
10
15
20
25
30
35
40
45
50
55
60
65
1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6
Gain, dB
Frequency, GHz
Open Bit 1 dB Bit 2 dB
Bit 4 dB Bit 8 dB Bit 16 dB
31 dB
0,5
0,6
0,7
0,8
0,9
1
1,1
1,2
1,3
1,4
1,5
1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6
Ud, V
Frequency, GHz

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Pin#8 (X1) Output voltage of built-in output temperature sensor
This output provides a voltage proportional to the internal temperature of the amplifier. The
voltage range of this output is 0…3 V DC (the type of temperature sensor is LM20BIM7 National
Semiconductor).
Measure voltage level using DC-tester or multimeter.
R = 2 kOhm C = 0,1 mkF
Pin#9 (X1) Enable / disable of the amplifier
The input voltage range is +2.4…5 V DC (TTL High Level). The voltage on this Pin enabling the
amplifier. After applying a voltage on this Pin the amplifier goes activate and with RF input
power the oscilloscope shot of the detected output signal is showed below.
Pin#7, Pin#10
DC ground.
Enable Voltage
RF out

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Gain-temperature compensation
The amplifier contains a built-in gain-temperature compensation.

MS010620
1 –6 GHz 20 Watt Wideband Amplifier
MICROWAVE SYSTEMS JSC | 5, str.1, Shcholkovskoye shosse, 105122, Moscow, Russia |
| Phone [phone] | [e-mail] | www.mwsystems.ru |
Mechanical Outline
Connector
Pin#
Description
Specification
X1
1
16
Bit 16 dB control
2
8
Bit 8 dB control
3
4
Bit 4 dB control
4
2
Bit 2 dB control
5
1
Bit 1 dB control
6
DOUT
Power Detector Output
7,10
G
Ground
8
T
Analog Voltage Relative Temperature@10mV/°C
9
Mod
RF Enable (0V or GND=RF Off, +5V or NC=RF On)
X2
A
+27
DC Power (+26… +30VDC)
B
G(–27)
Ground
1,2
N/C
No Connection
Connector
Socket Type
Plug Type*
X1
Harwin : M80-5101022
Harwin : M80-4611042
X2
Harwin : M80-5T10222M2-01-331-01-331
Harwin : M80-4C102422F1-01-325-01-325
*Each amplifier includes M80-4611042 and M80-4C102422F1-01-325-01-325 interface
connectors