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Analog Devices - 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR

Numéro de référence HMC939A
Description 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR
Fabricant Analog Devices 
Logo Analog Devices 





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HMC939A fiche technique
Typical Applications
The HMC939A is ideal for:
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Space Applications
HMC939A
v01.0916
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 40 GHz
Features
1.0 dB LSB Steps to 31 dB
Single Positive Control Line Per Bit
±1.0 dB Typical Bit Error
High Input IP3: +43 dBm
Die Size: 2.34 x 1.0 x 0.1 mm
Functional Diagram
General Description
The HMC939A die is a broadband 5-bit GaAs IC
digital attenuator MMIC chip. Covering 0.1 to 40 GHz,
the insertion loss is less than 5 dB typical. The
attenuator bit values are 1.0 (LSB), 2, 4, 8, 16 for a
total attenuation of 31 dB. Attenuation accuracy is
excellent at less than ±1.0 dB typical step error with
an IIP3 of +43 dBm. Five control voltage inputs,
toggled between +5V and 0V, are used to select each
attenuation state.
Electrical Specifications, TA = +25° C, With Vdd = +5V, Vss = -5V & VCTL = 0/ +5V
Parameter
Frequency (GHz)
Min.
Typ. Max.
Insertion Loss
0.1 - 18 GHz
18 - 40 GHz
4.3 5.0
7.0 7.8
Attenuation Range
0.1 - 40 GHz
31
Return Loss (RF1, All Atten. States)
(RF2, All Atten. States)
0.1 - 40 GHz
0.1 - 40 GHz
10
12
Attenuation Accuracy: (Referenced to Insertion Loss)
All States
0.1 - 15 dB
16 - 31 dB
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= 8 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
Idd
Iss
0.1 - 20 GHz
20 - 40 GHz
20 - 40GHz
0.1 - 0.5 GHz
0.5 - 40.0 GHz
0.1 - 0.5 GHz
0.5 - 40.0 GHz
0.1 - 40 GHz
0.1 - 40 GHz
0.1 - 40 GHz
± 0.5 + 3% of Atten. Setting Max
± 0.5 + 5% of Atten. Setting Max
± 0.6 + 6% of Atten. Setting Max
21
24
43
40
50
70
3 57
-4 -6 -8
Units
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
mA
mA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc.,
1 responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D

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