Motorola MICOM-3F - Page 41

IF filter
45.1 MHz
0÷1.25 KHz
10 Hz Res
DSP
RF output
1.6 - 30 MHz
DSM
Synthesizer
First injection
Finj1 = 46.7 - 75.1 MHz
step = 8.75 KHz
/2
VCO 1,2,3
Fc1 = 90.4 - 150.2 MHz
step = 17.5 KHz
Fc2 = 368.4 MHz
step = 10 KHz
Second injection
Finj2 = 46.15 MHz
step = 1.25 KHz
/8
VCO 4
1.05 MHz
Figure 5-2. Transmit Path Frequency Conversion Scheme
Cat. No. 6886859J01 5-3