¡ Semiconductor
MSM7583
MCK
Master clock input.
The clock frequency is 19.2 MHz.
IFIN1, IFIN2
Modulated signal inputs for the demodulator block.
Select the IF frequency from 1.2 MHz, 10.7 MHz, 10.75 MHz, and 10.8 MHz based on CR0 - B4
and B3. IFIN1 is for Channel 1, and IFIN2 for Channel 2.
IFCK
Clock signal input for demodulator block IF frequency (10.7 MHz or 10.75 MHz).
IftheIFfrequencyis10.7MHz,19.0222MHzshouldbesupplied. Whenitis10.75MHz,19.1111
MHz should be supplied. When the IF frequency is 1.2 MHz or 10.8 MHz, set this pin to “0”
or “1”. (Refer to Fig. 2.)
X1, X2
Crystal oscillator connection pins.
When supplying a 19.0222 MHz or 19.1111 MHz clock to IFCK, use these pins. (Refer to Fig. 2.)
When IFIN = 10.7 MHz or 10.75 MHz
When IFIN = 1.2 MHz or 10.8 MHz
MSM7583
MSM7583
X1
X2
IFCK
X1
X2
IFCK
19.0222 MHz or 19.1111 MHz
Figure 2 How to Use IFCK, X1, and X2
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