LC72345W View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC72345W Datasheet PDF : 13 Pages
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LC72344W, 72345W
Continued from preceding page.
Pin No.
Pin
I/O
24
VDC1
I VDC3 (3 V) step-up control.
Function
I/O circuit
27
VDC2
25
VDC3
I
2.1 V power supply. Apply either the voltage stepped-up by the DC-DC converter or an
equivalent voltage (2.1 V typical).
I
3 V power supply. Apply either the voltage stepped-up by VDC1 or an equivalent voltage (3 V
typical).
28
VREF
O VDC2 step-up transistor drive.
29
VCON
I
Frequency adjustment for the internal RC oscillator circuit. The RC oscillator frequency can
be lowered by inserting a capacitor between this pin and ground.
30
VADJ
O The VDC3 voltage can be adjusted by inserting a resistor between this pin and ground.
56
FMIN
FM VCO (local oscillator) input.
This pin is selected with the PLL instruction CW1.
I
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
CMOS amplifier input
57
AMIN
59
EO
AM VCO (local oscillator) input.
This pin and the bandwidth are selected with the PLL instruction CW1.
CW1 b1, b0
Bandwidth
I
11
0.5 to 10 MHz (MW, LW)
CMOS amplifier input
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
Main charge pump output. When the local oscillator frequency divided by N is higher than the
reference frequency a high level is output, when lower, a low level is output, and the pin is set
O to the high-impedance state when the frequencies match.
This output goes to the high-impedance state in backup mode, in halt mode, after a reset,
and in PLL stop mode.
CMOS push-pull output
60
AIN
61
AOUT
62
AGND
Transistor used for the low-pass filter amplifier.
O
Connect AGND to ground.
Power supply pin.
26
VSS
This pin must be connected to ground.
—
—
58
VSS
This pin must be connected to ground.
55
VDD
This pin must be connected to VDD. Supports A/D converter.
Note: *Applications must establish the output data in advance with an OUT, SPB, or RPB instruction and then set the pin to output mode with an IOS
instruction when using the I/O switchable ports as output pins.
No. 6171-9/13
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