HMC346MS8G_07 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SMT VOLTAGE-VARIABLE ATTENUATOR, DC - 8 GHz

HMC346MS8G / 346MS8GE
v05.0607
GaAs MMIC SMT VOLTAGE-VARIABLE
ATTENUATOR, DC - 8 GHz
Typical Applications
6
This attenuator is ideal for use as a VVA
for DC - 8 GHz applications:
• Point-to-Point Radio
• VSAT Radio
Features
Wide Bandwidth: DC - 8 GHz
Low Phase Shift vs. Attenuation
32 dB Attenuation Range
Functional Diagram
General Description
The HMC346MS8G & HMC346MS8GE are absorp-
tive Voltage Variable Attenuators (VVA) in 8 lead sur-
face-mount packages 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 con-
trol RF signal levels over a 30 dB amplitude range.
Applications include AGC circuits and temperature
compensation of multiple gain stages in microwave
point-to-point and VSAT radios.
Electrical Specifications, T_A = +25° C, 50 ohm system
Parameter
Min
Typical
Max
Insertion Loss
DC - 8 GHz
1.5
2.5
Attenuation Range
DC - 8 GHz
27
32
Return Loss
DC - 8 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
-2
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
ns
ns
dBm
dBm
dBm
dBm
6 - 102
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