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No. 5065-7/13
LC72358N, 72362N, 72366
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Pin No.
Symbol
I/O
I/O type
Function
76
73
31
75
74
72
71
V
SS
V
DD
V
DD
FMIN
AMIN
SUBPD
EO3
—
I
I
O
O
—
Input
Input
CMOS tristate
CMOS tristate
Power supply connections
FM VCO (local oscillator) input
This pin is selected by the PLL instruction CW1 (b1, b0 are ignored).
Capacitor coupling must be used for signal input.
Input is disabled when the HOLD pin is set low in the hold enable state.
Input is disabled in clock stop mode, during the power-on reset, and in the PLL stop state.
AM VCO (local oscillator) input
This pin is selected and the band set by the PLL instruction CW1 (b1, b0).
Capacitor coupling must be used for signal input.
Input is disabled when the HOLD pin is set low in the hold enable state.
Input is disabled in clock stop mode, during the power-on reset, and in the PLL stop state.
Sub-charge pump output
This pin, in combination with the main charge pump, allows the construction of a high-
speed locking circuit.
The DZC instruction controls the sub-charge pump.
This pin goes to the high-impedance state when the HOLD pin is set low in the hold enable
state.
This pin goes to the high-impedance state in clock stop mode, during the power-on reset,
and in the PLL stop state.
Second PLL charge pump output
This pin outputs a low level when the frequency generated by dividing the local oscillator
signal frequency by N is higher than the reference frequency, and a high level when that
frequency is lower.
This pin goes to the high-impedance state when the frequencies match. (Note that this
pin’s output logic is the opposite of that of the EO1 and EO2 pins.)
This pin goes to the high-impedance state when the HOLD pin is set low in the hold enable
state.
This pin goes to the high-impedance state in clock stop mode, during the power-on reset,
and in the PLL stop state.
b1
b0
Band
1
0
2 to 40 MHz (SW)
1
1
0.5 to 10 MHz (MW, LW)
b3
b2
Operation
0
0
High impedance
0
1
Only operates in the unlocked state (450 kHz)
1
0
Only operates in the unlocked state (900 kHz)
1
1
Normal operation