HMC346LC3B Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 18 GHz

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
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, T_A = +25° C, 50 Ohm system
Parameter
Min
Typical
Max
Insertion Loss
Attenuation Range
DC - 10 GHz
DC - 14 GHz
DC - 18 GHz
1.5
2.0
2.2
2.7
2.8
3.5
DC - 12 GHz
26
30
DC - 18 GHz
22
26
Return Loss
DC - 18 GHz
10
Input Power for 0.25 dB Compression (0.5 - 18 GHz)
Min. Atten:
+8
Atten. >2 dB:
-4
Input Third Order Intercept (0.5 - 18 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
Min. Atten:
+25
Atten. >2 dB:
+10
Switching Characteristics
tRISE, tFALL (10/90% RF):
2
tON, tOFF (50% CTL to 10/90% RF):
8
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: [phone] Fax: [phone]
Order On-line at www.hittite.com