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PDF HMC346LC3B Data sheet ( Hoja de datos )
| Número de pieza | HMC346LC3B | |
| Descripción | GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR / DC - 18 GHz | |
| Fabricantes | Hittite Microwave | |
| Logotipo |  |
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v00.1204
Typical Applications
9 The HMC346LC3B is ideal for:
• Test Instrumentation
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
Functional Diagram
HMC346LC3B
www.DataSheet4U.com
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 18 GHz
Features
Wide Bandwidth: DC - 18 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
Simplified Voltage Control
RoHS Compliant 3 x 3 mm SMT Package
General Description
The HMC346LC3B is an absorptive Voltage Variable
Attenuator (VVA) in a leadless “Pb free” RoHS compli-
ant SMT mount plastic package operating from DC -
18 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. The HMC346LC3B allows the use of surface
mount manufacturing techniques.
Electrical Specifications, TA = +25° C, 50 Ohm system
Parameter
Insertion Loss
Attenuation Range
DC - 10 GHz
DC - 14 GHz
DC - 18 GHz
DC - 12 GHz
DC - 18 GHz
Return Loss
DC - 18 GHz
Input Power for 0.25 dB Compression (0.5 - 18 GHz)
Min. Atten:
Atten. >2 dB:
Input Third Order Intercept (0.5 - 18 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
Min. Atten:
Atten. >2 dB:
Switching Characteristics
tRISE, tFALL (10/90% RF):
tON, tOFF (50% CTL to 10/90% RF):
Min
26
22
Typical
1.5
2.2
2.8
30
26
10
+8
-4
+25
+10
2
8
Max
2.0
2.7
3.5
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
9 - 90
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
1 page  
v00.1204
HMC346LC3B
www.DataSheet4U.com
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 18 GHz
9
Pin Descriptions
Pin Number
Function
1, 3, 7, 9
GND
RF1
2, 8
RF2
Description
Package bottom has exposed metal paddle that must also be
connected to PCB RF ground.
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if the RF line potential is not equal to
0V.
Interface Schematic
4, 6 V2, V1
Control input (master).
5
10, 11, 12
I
N/C
Control input (slave).
This pin may be connected to PCB RF/DC ground.
Performance will not be affected.
Single-Line Control Driver
9 - 94
External op-amp control circuit maintains impedance match while attenuation is varied. Input control ranges from 0 Volts
(min. attenuation) to -3.0 Volts (max. attenuation.)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HMC346LC3B.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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