HMC346LP3 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz

v02.0604
MICROWAVE CORPORATION
HMC346LP3
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Typical Applications
The HMC346LP3 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 - 14 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
Simplified Voltage Control
3 mm x 3 mm x 1 mm SMT Package
General Description
The HMC346LP3 is an absorptive Voltage Variable
Attenuator (VVA) in a low cost leadless surface
mount plastic package operating from DC - 14 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 ampli-
tude range. This VVA is an excellent alternative to
the HMC121C8.
Electrical Specifications, T = +25° C, 50 ohm system
A
Parameter
Min
Typical
Max
Insertion Loss
DC - 10 GHz
DC - 14 GHz
1.7
2.2
2.8
3.3
Attenuation Range
DC - 10 GHz
27
30
DC - 14 GHz
22
27
Return Loss
DC - 14 GHz
5
10
Switching Characteristics
tRISE, tFALL (10/90% RF):
2
tON, tOFF (50% CTL to 10/90% RF):
8
Input Power for 0.25 dB Compression (0.5 - 8 GHz)
Min. Atten:
+8
Atten. >2 dB:
-4
Input Third Order Intercept (0.5 - 8 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
Min. Atten:
+25
Atten. >2 dB:
+10
Units
dB
dB
dB
dB
dB
ns
ns
dBm
dBm
dBm
dBm
9 - 74
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order Online at www.hittite.com