HMC346C8 Datasheet PDF - Hittite Microwave Corporation
| Part Number | HMC346C8 | |
| Description | GaAs MMIC SMT VOLTAGEVARIABLE ATTENUATOR/ DC - 8 GHz | |
| Manufacturers | Hittite Microwave Corporation | |
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v00.0504
MICROWAVE CORPORATION
HMC346C8
GaAs MMIC SMT VOLTAGE-
VARIABLE ATTENUATOR, DC - 8 GHz
Typical Applications
The HMC346C8 is ideal for:
9 • Basestation Infrastructure
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
• Test Instrumentation
Functional Diagram
Features
Wide Bandwidth: DC - 8 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
Surface Mount Ceramic Package
General Description
The HMC346C8 is an absorptive Voltage Vari-
able Attenuator (VVA) in a non-hermetic surface-
mount ceramic package operating from DC - 8
GHz. It features an on-chip reference attenuator
for use with an external op-amp to provide 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 compensation of
multiple gain stages in microwave radios and test
instrumentation.
Electrical Specifications, TA = +25° C, 50 ohm system
Parameter
Min
Insertion Loss
DC - 6 GHz
DC - 8 GHz
Attenuation Range
DC - 8 GHz
Return Loss
DC - 8 GHz
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
Typical
1.9
2.1
30
10
2
8
+8
-2
+25
+10
Max
2.9
3.1
Units
dB
dB
dB
dB
ns
ns
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
|
| |
 
MICROWAVE CORPORATION
v00.0504
HMC346C8
GaAs MMIC SMT VOLTAGE-
VARIABLE ATTENUATOR, DC - 8 GHz
9
Pin Descriptions
Pin Number
Function
1, 8 RF1, RF2
2, 7 GND
Description
This pin is DC coupled and matched to 50 Ohms. Blocking
capacitors are required if RF line potential is not equal to 0V.
This pin must be DC grounded.
Interface Schematic
3, 6 V2, V1
Control Input (Master).
4I
Control Input (Slave).
5 O This pin must have an external 500 Ohm resistor to ground.
Single-Line Control Driver
9 - 66
Note:
External op-amp control circuit maintains impedance
match while attenuation is varied. Input control ranges
from 0 Volts (min. attenuation) to -2.5 Volts (max.
attenuation.)
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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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HMC346C8 electronic component. |
| Information | Total 6 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HMC346C8.PDF Datasheet ] | |
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