24-30GHz MFC Down Converter
Typical On-board Measurements
Bias Conditions : Vdm= Vdl= 3.5 V, Vgm= Vgx= -0.9V, Vgb= Vga= -0.3V
CHR2295
All these measurements include the losses from the test board (about 1dB on the conversion
gain and 0.5dB on the noise figure).
12.00
Conversion Gain & Image suppression (dB)
8.00
4.00
0.00
-4.00
IF=1GHz
-8.00
-12.00
-16.00
-20.00
IF=2GHz
IF=1.5GHz
IF=1GHz
IF=2GHz
IF=1.5GHz
-24.00
22.5
23.5
24.5
25.5
26.5
27.5
28.5
29.5
30.5
31.5
32.5
2XLO Frequency (GHz)
Conversion gain & Image suppression versus IF frequency
10
9
8
Noise factor (dB)
Channel_sup_IF_1GHz
Channel_sup_IF_1.5GHz
Channel_sup_IF_2GHz
Channel_inf_IF_1GHz
Channel_inf_IF_1.5GHz
Channel_inf_IF_2GHz
7
6
5
4
3
2
1
0
24.5
25
25.5
26
26.5
27
27.5
28
28.5
29
29.5
RF Frequency (GHz)
Noise figure supradyne & infradyne versus IF frequency
Ref. : : DSCHR22951201 -20-July-01
4/6
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 ]
