msm7582 Oki Semiconductor, msm7582 Datasheet - Page 8
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msm7582
Manufacturer Part Number
msm7582
Description
P/4 Shift Qpsk Modem
Manufacturer
Oki Semiconductor
Datasheet
1.MSM7582.pdf
(24 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
msm7582B
Manufacturer:
OKI
Quantity:
5 510
Company:
Part Number:
msm7582B
Manufacturer:
TOSHIBA
Quantity:
5 510
¡ Semiconductor
MCK
Master clock input.
The clock frequency is 19.2 MHz.
IFIN
Modulated signal input 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.
IFCK
Clock signal input for demodulator block IF frequencies (10.7 MHz or 10.75 MHz).
If the IF frequency is 10.7 MHz, 19.0222 MHz should be supplied. When it is 10.75 MHz, 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.)
RXD, RXC
Receive data and clock output. When power is turned on, the outputs of circuits selected by SLS1
and SLS2 appear at these pins. (Refer to Fig. 3)
RXD1
RXC
SLS2
SLS1
When IFIN = 10.7 MHz or 10.75 MHz
19.0222 MHz or 19.1111 MHz
MSM7582/7582B
X1
X2
Figure 3 RXD and RXC Timing Diagram
Figure 2 How to Use IFCK, X1, and X2
IFCK
The recovery data and clock pulse are selected
asynchronously using the SLS signals.
When IFIN = 1.2 MHz or 10.8 MHz
MSM7582/7582B
X1
X2
IFCK
MSM7582/7582B
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