HMC346MS8G Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SMT VOLTAGE-VARIABLE ATTENUATOR, DC - 8 GHz

v03.0304
HMC346MS8G
MICROWAVE CORPORATION
GaAs MMIC SMT VOLTAGE-VARIABLE
ATTENUATOR, DC - 8 GHz
Typical Applications
This attenuator is ideal for use as a VVA
9
for DC - 8 GHz applications:
• Point-to-Point Radio
• VSAT Radio
Functional Diagram
Features
Wide Bandwidth: DC - 8 GHz
Low Phase Shift vs. Attenuation
32 dB Attenuation Range
General Description
The HMC346MS8G is an absorptive Voltage Vari-
able Attenuator (VVA) in an 8 lead surface-mount
package 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
control RF signal levels over a 30 dB amplitude
range. Applications include AGC circuits and tem-
perature 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
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