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LC72131K Fiches technique(PDF) 8 Page - Sanyo Semicon Device

No de pièce LC72131K
Description  PLL Frequency Synthesizer
Download  22 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC72131K Fiches technique(HTML) 8 Page - Sanyo Semicon Device

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LC72131K, LC72131KMA
No.A0788-8/22
Continued from preceding page.
Symbol
Pin No.
Type
Functions
Circuit configuration
LC72131K
LC72131KMA
PD
18
16
Charge pump
output
PLL charge pump output
When the frequency generated by dividing the local oscillator
frequency by N is higher than the reference frequency, a high
level is output from the PD pin.
Similarly, when that frequency is lower, a low level is output.
The PD pin goes to the high impedance state when the
frequencies match.
AIN
AOUT
19
20
17
18
LPF amplifier
transistors
The n-channel MOS transistor used for the PLL active
low-pass filter.
IFIN
12
11
IF counter
Accepts an input in the frequency range 0.4 to 12MHz.
The input signal is directly transmitted to the IF counter.
The result is output starting the MSB of the IF counter using the
DO pin.
Four measurement periods are supported: 4, 8, 32, and 64ms.
DI Control Data (Serial Data Input) Structure
[1] IN1 mode
[2] IN2 mode
address
0
0
1
0
1
0
0
DI
0
First Data IN1
address
0
0
1
0
1
0
0
DI
1
First Data IN2


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