HMC346LP3_08 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz

v05.1008
5
Typical Applications
The HMC346LP3 / HMC346LP3E is ideal for:
• Basestation Infrastructure
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
• Test Instrumentation
Functional Diagram
HMC346LP3 / 346LP3E
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Features
Wide Bandwidth: DC - 14 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
Simplified Voltage Control
3 x 3 x 1 mm SMT Package
General Description
The HMC346LP3 & HMC346LP3E are pabsorp-
tive Voltage Variable Attenuators (VVA) in low cost
leadless surface mount plastic packages 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 amplitude range. This VVA is an excellent alterna-
tive to the HMC121C8.
Electrical Specifications, T_A = +25° C, 50 ohm system
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
5 - 96
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