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HMC346G8 Datasheet

  • HMC346G8

  • GaAs MMIC HERMETIC SMT VOLTAGEVARIABLE ATTENUATOR, DC - 8 GH...

  • 6頁

  • HITTITE

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v01.0304
MICROWAVE CORPORATION
HMC346G8
Features
Wide Bandwidth: DC - 8 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
8 Lead Hermetic SMT Package
GaAs MMIC HERMETIC SMT VOLTAGE-
VARIABLE ATTENUATOR, DC - 8 GHz
Typical Applications
The HMC346G8 is ideal for:
9
ATTENUATORS - SMT
鈥?Basestation Infrastructure
鈥?Fiber Optics & Broadband Telecom
鈥?Microwave Radio & VSAT
鈥?Military Radios, Radar, & ECM
鈥?Test Instrumentation
Functional Diagram
General Description
The HMC346G8 is an absorptive Voltage Vari-
able Attenuator (VVA) in an 8 lead glass/metal
(hermetic) surface-mount package operating
from DC - 8 GHz. It features an on-chip reference
attenuator for use with an external op-amp to pro-
vide simple single voltage attenuation control, 0
to -3V. The device is ideal in designs where an
analog DC control signal must control RF signal
levels over a 30 dB amplitude range. Applications
include AGC circuits and temperature compensa-
tion of multiple gain stages in microwave radios
and test instrumentation.
Electrical Speci鏗乧ations,
T
A
= +25擄 C, 50 ohm system
Parameter
Insertion Loss
DC - 6 GHz
DC - 8 GHz
DC - 8 GHz
DC - 8 GHz
7
Min
Typical
2.0
2.0
30
10
Max
3.0
3.5
Units
dB
dB
dB
dB
Attenuation Range
Return Loss
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
Input Power for 0.25 dB Compression (0.5 - 8 GHz)
Min. Atten.
Atten. >2 dB
Input Third Order Intercept (0.5 - 8 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
Min. Atten.
Atten. >2 dB
2
8
ns
ns
+8
-2
+25
+10
dBm
dBm
dBm
dBm
9 - 62
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com

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