STA-0005033505-2F2F-P7

Advanced Rev 1.1

Description:
Model STA-0005033505-2F2F-P7 is a coaxial
programmable attenuator for use in
microwave and millimeter systems where auto
attenuation adjustment is required. Theattenuator covers the frequency range of DC to50 GHz. The attenuation bias and control arevia a 10 pin (2x5) 0.1" pin spacing shrouded
male connector to accommodate remote operations from 0 to 35 dB. The attenuation step sizes are 5dB. The actuator control and interface circuits are custom designed and uniquely packaged within theattenuator housing. The microprocessor-based electronics ramp the speed of a precision actuator toensure fast and accurate positioning. The RF connectors are 2.4 mm female. Other connector options
are offered under different model numbers. A 9” female to female cable with 10 pin connectors is
included for interface convenience.

Features:••••

Applications:

DC to 50 GHz CoverageHigh Attenuation Value up to 35 dB
TTL Control via Logic Table
Low DC Power Once Latching•••Test LabInstrumentations
Auto Test Set

SAGE Millimeter, Inc.

DC to 50 GHz Programmable Attenuator, 35 dB, 5 dB Step Size

Electrical Specifications:Parameter
RF Frequency Range
Insertion Loss (at 0 dB Setting)Attenuation Range
Attenuation Accuracy(Attenuation Range)
Attenuation Step Size
Repeatability
Switching Speed (Per Switch)
Switching Control
Return Loss
Power Handling
Operating Life (Per Switch)
Specification Temperature
Operation Temperature
Shock, 3 Axis, 6 Direction
Vibration
Humidity
Operating Voltage/Current

MinimumDC

TypicalMaximum
50 GHz3.0 dB
3.5 dB0 dB
35 dB±1.0 dB (1 to 5 dB); ±1.5 dB (6 to 20 dB); ±2.5 dB (21 to 30 dB)±3.5 dB (31 to 35 dB)
5 dB
0.05 dB
20 ms
25 ms
TTL, Logic Table
10 dB
15 dB
1 Watt (CW)
1,000,000 cycles+25 ˚C-20 ˚C+75 ˚C
10g, 6 ms
5g, 50 to 2,000 Hz
240 hours @ +40 ˚C, 95% RH+20 VDC+24 VDC / 135 mA+28 VDCwww.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

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STA-0005033505-2F2F-P7

Advanced Rev 1.1Mechanical Specifications:
Item
RF Ports
Control Interface
Bias Port
FinishWeightOutlineParameter
2.4 mm Female
10 Pin (2x5) 0.1" Pin Spacing Shrouded Male Connector
10 Pin (2x5) 0.1" Pin Spacing Shrouded Male Connector
Black Anodized and Passivate Stainless Steel
9.5 OzTA-PC-CE2

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches [millimeters])

SAGE Millimeter, Inc.

DC to 50 GHz Programmable Attenuator, 35 dB, 5 dB Step Size

Bias and Control Instructions:
The attenuator requires a typical DC bias at +24 Volts with 135 mA current capacity. The required
current is only for switching. Once the attenuation state is settled no DC power is consumed. The
switching time is no longer than 25 milliseconds.
The bias and control signal interface connector is shown in the mechanical outline. The detailed control
signal for various attenuation values is shown in the Logic Table.

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 2

STA-0005033505-2F2F-P7

Advanced Rev 1.1

Logic Table
Attenuation (dB)
I.L
5101520253035

Pin 1
↓H
H
H
H
H
H
H

Pin 2HH
↓↓
H
H
↓↓

Pin 3
GND
GND
GND
GND
GND
GND
GND
GND

Pin 4
↓H
H
H
H
H
H
H

Pin 5
↓
H
H
H
H
H
H
H

Pin 6
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C

Pin 7
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C

Pin 8H
↓H
↓H
↓H
↓

Pin 9
H
H
H
H
↓↓↓↓

Pin 10+24 Vdc+24 Vdc+24 Vdc+24 Vdc+24 Vdc+24 Vdc+24 Vdc+24 Vdc

Note:
••
•
•

H is TTL “High” = +4.2 Vdc to +5.0 Vdc; L is TTL “Low” = 0 to +1.0 Vdc.
↓ indicates transition High to Low, holding Low for 20 ms minimum.
The pins should be switched one at a time.
Eravant reserves the right to change the information presented without notice.

Caution:•••••SAGE Millimeter, Inc.

DC to 50 GHz Programmable Attenuator, 35 dB, 5 dB Step Size

The device may be damaged if pin 3 is floating while biasing. Make sure that pin 3 is always
grounded.
Exceeding absolute maximum ratings shown will damage the device.
Always use provided mounting holes by using M3 screws to mount the device. To achieve thebest electrical performance stability against shock and vibration it is recommended to mountthe device on the flat baseplate parallel to the earth.
Keep the device in a dry environment for long term storage as it is not hermetically packaged.
Proper torque, 8.0 ± 0.15 inch-pounds (0.90 ± 0.02 Nm), should be applied. Eravant torquewrench, model SCH-08008-S1, is highly recommended.

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 3