AN 074 Rev E

15 / 24

19-November-2002

Applications Note No. 074

Silicon Discretes

Figure 22. Gain of Complete Gain-Sloped BGA430 + BGB540 LNB I.F. Amplifier. Note positive

gain slope.

CH1

S 21

log MAG

2 dB/

REF 33 dB

START 900.000 000 MHz

STOP 2 200.000 000 MHz

Cor

Avg

8

Smo

Del

PRm

SCALE

2 dB/div

29 Jul 2002 22:58:08

1

2

3

2_: 37.311 dB

1 450.000 000 MHz

1_: 33.091 dB

950 MHz

3_: 37.271 dB

2.15 GHz

BGA430 MMIC

BGB540 MMIC

High Pass Filter

Complete LNB I.F. Amp

B

A

Gain Plot for Figure 22 is taken between points 'A' and 'B'