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LC72133M Fiches technique(PDF) 7 Page - Sanyo Semicon Device

No de pièce LC72133M
Description  PLL Frequency Synthesizer for Electronic Tuning
Download  23 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC72133M Fiches technique(HTML) 7 Page - Sanyo Semicon Device

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No. 5427-7/23
LC72133M, 72133V
Symbol
Pin No.
Type
Functions
Circuit configuration
VSS
BO1
BO2
BO3
BO4
IO1
IO2
PD
AIN
AOUT
IFIN
19
6
7
8
9
10
12
16
17
18
11
Ground
Output port
I/O port
Charge pump
output
LPF amplifier
transistor
IF counter
• The LC72133 ground
• Dedicated output pins
• The output states are determined by BO1 to BO4 bits in
the serial data.
Data: 0 = open, 1 = low
• A time base signal (8 Hz) can be output from the BO1
pin. (When the serial data TBC bit is set to 1.)
• Care is required when using the BO1 pin, since it has a
higher on impedance than the other output ports (pins
BO2 to BO4).
• The data = 0 (open) state is selected after the power-on
reset.
• I/O dual-use pins
• The direction (input or output) is determined by bits IOC1
and IOC2 in the serial data.
Data: 0 = input port, 1 = output port
• When specified for use as input ports:
The state of the input pin is transmitted to the controller
over the DO pin.
Input state: low = 0 data value
high = 1 data value
• When specified for use as output ports:
The output states are determined by the IO1 and IO2
bits in the serial data.
Data: 0 = open, 1 = low
• These pins function as input pins following a power on
reset.
• 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.
• The n-channel MOS transistor used for the PLL active
low-pass filter.
• Accepts an input in the frequency range 0.4 to 12 MHz.
• 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
64 ms.
A11912
A11913
S
A11914
A11915
A11916


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