31-40GHz Variable Gain Amplifier
Typical Measured Performance in Test Fixture
Vd = +3.5V, Vg tuned for Id = 160mA
CHA3694
Measurements in test fixture, using the proposed chip assembly, as defined page 10.
Linear Gain versus Frequency and Temperature
24
20
16
12
Linear Gain (dB)
8
4
0
-4
-8
-12
-16
-20
30
31
32
33
34
35
36
37
38
39
40
Frequency (GHz)
-50°C
+25°C
+85°C
Vctrl=-1.5V
Vctrl=-0.6V
Vctrl=-0.5V
Vctrl=-0.4V
Vctrl=+0.6V
Return Losses versus Frequency and Gain Control Voltage (-1,5V to +0,6V)
0
-2
S11
-4
Return Losses (dB)
-6
-8
-10
-12
-14
S22
-16
-18
-20
-22
30
31
32
33
34
35
36
37
38
39
40
Frequency (GHz)
Ref. : DSCHA3694-8155 - 03 Jun 08
7/12
Specifications subject to change without notice
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Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
