RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS

Absorptive Digital Control Attenuator
8 - 40GHz
Features
Wide Band Operation 8-40GHz
0.5dB LSB Steps to 63.5dB
Single Positive Control Line Per Bit
Customization available upon request

Electrical Specifications, TA = +25°C, Vdd = +5V/-5V, VCTL = 0 / +5V
PN: RFDAT0840G7A

Description
Parameters

Absorptive Digital Attenuator
Min

Frequency Range

MaxMin8-18

Attenuation Range
Attenuation Flatness:(Referenced to Insertion Loss)
Control Bits
Control Step Size

TypTypMin

18-26.5
63.5±2.0Max±2.5726.5-40±3.0±3.0

63.5

dB±4.0dB

7Bit0.5
15.0UnitsGHz70.5

15.0Max63.5±2.50.5

TypdB

Insertion LossInsertion Loss Temperature
Coefficient
Input VSWR (All States)

14.0

17.0

20.0

0.01

0.01

1.8

2.2

2.0

2.3

2.2

2.5:1

Output VSWR (All States)

1.8

2.2

2.0

2.3

2.2

2.5:1

Input 0.1 dB Compression Point

252525dBm

IP3 Input
Switching Speed
50% CTRL* to 90% or 10%Weight454343dBm

0.01

23.0dBdB/ °C150ns1.06

ouncesImpedance50

ΩBias Current (+5V/-5V)

70/50mA

Input / Output Connectors

2.92mm - Female

Interface and Control Connector

MICRO-D15(Female)FinishGold PlatedMaterialAluminumSealing

Hermetically Sealed (Optional)

RF-LAMBDA USA
Sales: sales@rflambda.com

Absorptive Digital Control Attenuator 8-40GHz••••

www.rflambda.com

Technical : support@rflambda.com

RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS
Absolute Maximum Ratings

Ordering Information

Biasing+5V±10%/-5V±10%

TTL Control Voltage

0~0.8V / 2.8~5V

RF Input Power+27dBm

Part No.

ECCN

RFDAT0840G7A EAR99

Description
8-40GHz Digital Control
Attenuator

Parameter

Standard

Description

Operational Temperature-40℃~+85℃

Storage Temperature-55℃~+125℃

Thermal Shock

1 Hour@ -45℃  1 Hour @ +85℃ (5 Cycles)

Random Vibration

Acceleration Spectral Density 6 (m/s)
Total 92.6 RMS

MIL-STD-39016

Electrical & Temperature
Burn In

Temperature +85℃ for 72 Hours

Shock

1. Weight >20g, 50g half sine wave for 11ms, Speed variation 3.44m/s
2. Weight <=20g, 100g Half sine wave for 6ms, Speed variation
3.75m/s
3. Total 18 times (6 directions, 3 repetitions per direction).

AltitudeStandard: 30,000 Ft (Epoxy Sealed Controlled Environment)
Optional: Hermetically Sealed (60,000 ft. 1.0 PSI min)

Hermetically Sealed(Optional)

MIL-STD-883

Absorptive Digital Control Attenuator 8-40GHz

Environmental Specifications and Test Standards

MIL-STD-883 (For Hermetically Sealed Units)

RF-LAMBDA USA
Sales: sales@rflambda.com

www.rflambda.com

Technical : support@rflambda.com

RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS

Typical Performance Plots
Input VSWR@+25℃Output VSWR @+25℃

Insertion Loss @-45℃

Input VSWR @-45℃

Output VSWR @-45℃

Absorptive Digital Control Attenuator 8-40GHz

Insertion Loss@+25℃

RF-LAMBDA USA
Sales: sales@rflambda.com

www.rflambda.com

Technical : support@rflambda.com

RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS
Input VSWR @+85℃

Output VSWR @+85℃

Attenuation vs. Frequency

VSWR vs. Attenuation(S11)VSWR vs. Attenuation(S22)

Absorptive Digital Control Attenuator 8-40GHz

Insertion Loss @+85℃

RF-LAMBDA USA
Sales: sales@rflambda.com

www.rflambda.com

Technical : support@rflambda.com

RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS

Attenuation Step Error Per Bit (dB)

Accumulated Attenuation Error(dB)

Relative Phase Shift

Speed

Speed

Absorptive Digital Control Attenuator 8-40GHz

Attenuation Range Linearity

RF-LAMBDA USA
Sales: sales@rflambda.com

www.rflambda.com

Technical : support@rflambda.com

RF-LAMBDA

RFDAT0840G7A

LEADER OF RF BROADBAND SOLUTIONS

Outline Drawing:
All Dimensions in mm [inches]

18.2 [0.72]

38 [1.50]
28.8 [1.13]1.1[0.04]

7.35[0.29]
PIN15

OUTPUT

RF-Lambda
RFDAT0840G7A
F:8-40GHz
SN:XXXXXXXXXXXGND

C7 C61.27[0.05]

6.55 [0.26]

INPUT

36 [1.42]
32 [1.26]

4.2 [0.17]

2-56THREAD

Absorptive Digital Control Attenuator 8-40GHz

9.5 [0.37]
3 [0.12]PIN1
C5 C4 C3 C2 C1 -5V GND +5V

MICRO-D15(Female)TTL

4- 2.8[0THR .11]
U

Truth Table
C7111111100Control Voltage Input
C6 C5 C4 C3 C2111111111111110111011101110111011111111
100000C1101111
110

Attenuation
StateReference IL
0.5dB
1dB
2dB
4dB
8dB
16dB
32dB
63.5dbImportant Notice
The information contained herein is believed to be reliable. RF-Lambda makes no warranties regarding the information contained herein.
RF-Lambda assumes no responsibility or liability whatsoever for any of the information contained herein. RF-Lambda assumes no responsibility
or liability whatsoever for the use of the information contained herein. The information contained herein is provided "AS IS, WHERE IS" andwith all faults, and the entire risk associated with such information is entirely with the user. All information contained herein is subject tochange without notice. Customers should obtain and verify the latest relevant information before placing orders for RF-Lambda products. The
information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or
any other intellectual property rights, whether with regard to such information itself or anything described by such information.
RF-Lambda products are not warranted or authorized for use as critical components in medical, life-saving, or life sustaining applications, orother applications where a failure would reasonably be expected to cause severe personal injury or death.
RF-LAMBDA USA
Sales: sales@rflambda.com

www.rflambda.com

Technical : support@rflambda.com