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HMC121G8 Datasheet

  • HMC121G8

  • GaAs MMIC SMT VOLTAGE-VARIABLE ATTENUATOR DC - 8 GHz

  • 6頁(yè)

  • HITTITE

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MICROWAVE CORPORATION
HMC121G8
General Description
The HMC121G8 is an absorptive voltage
variable attenuator provided in a surface-
mount hermetic package. It features an on-
chip reference attenuator for use with an
GaAs MMIC SMT VOLTAGE-VARIABLE ATTENUATOR DC - 8 GHz
F
EBRUARY
2001
Features
WIDE BANDWIDTH: DC - 8 GHZ
LOW PHASE SHIFT VS. ATTENUATION
2
SMT A
TTENUATORS
30 dB ATTENUATION RANGE
SIMPLIFIED VOLTAGE CONTROL
external op-amp to provide simple single
voltage attenuation control. The device is
ideal in designs where an analog control
signal must control RF signal levels over a
30 dB amplitude range, such as in AGC
circuits and in temperature compensation of
multiple gain stages. Applications include
military ECM and communications as well
as commercial microwave radios and VSAT.
Guaranteed Performance,
50 ohm system, -55 to +85 deg C
Parameter
Insertion Loss
Attenuation Range
Return Loss
Switching Characteristics
DC - 4 GHz:
DC - 8 GHz:
tRISE, tFALL ( 10/90% RF):
tON, tOFF (50% CTL to 10/90% RF):
Min. Atten:
Atten. > 2dB:
Min. Atten:
Atten. > 2dB:
DC - 4 GHz:
DC - 8 GHz:
25
10
7
Min.
Typ.
1.5
2
30
15
10
3
6
+10
-2
+25
+10
Max.
3.0
3.5
Units
dB
dB
dB
dB
dB
ns
ns
dBm
dBm
dBm
dBm
Input Power for 0.25dB Comp. ( 0.5 - 8GHz)
Input Third Order Intercept (two - 8 dBm signals)
12 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
2 - 20

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