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LC72344W Arkusz danych(PDF) 9 Page - Sanyo Semicon Device

Numer części LC72344W
Szczegółowy opis  Low-Voltage ETR Controller with On-Chip DC-DC Converter
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Producent  SANYO [Sanyo Semicon Device]
Strona internetowa  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC72344W Arkusz danych(HTML) 9 Page - Sanyo Semicon Device

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No. 6171-9/13
LC72344W, 72345W
Continued from preceding page.
Pin No.
Pin
I/O
Function
I/O circuit
VDC3 (3 V) step-up control.
24
VDC1
I
CMOS amplifier input
2.1 V power supply. Apply either the voltage stepped-up by the DC-DC converter or an
equivalent voltage (2.1 V typical).
27
VDC2
I
3 V power supply. Apply either the voltage stepped-up by VDC1 or an equivalent voltage (3 V
typical).
25
VDC3
I
VDC2 step-up transistor drive.
28
VREF
O
Frequency adjustment for the internal RC oscillator circuit. The RC oscillator frequency can
be lowered by inserting a capacitor between this pin and ground.
29
VCON
I
The VDC3 voltage can be adjusted by inserting a resistor between this pin and ground.
30
VADJ
O
FM VCO (local oscillator) input.
This pin is selected with the PLL instruction CW1.
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
56
FMIN
I
CMOS amplifier input
AM VCO (local oscillator) input.
This pin and the bandwidth are selected with the PLL instruction CW1.
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
57
AMIN
I
CMOS push-pull output
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
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.
59
EO
O
Transistor used for the low-pass filter amplifier.
Connect AGND to ground.
60
61
62
AIN
AOUT
AGND
O
Power supply pin.
This pin must be connected to ground.
This pin must be connected to ground.
This pin must be connected to VDD. Supports A/D converter.
26
58
55
VSS
VSS
VDD
CW1 b1, b0
Bandwidth
11
0.5 to 10 MHz (MW, LW)
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.


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