lc72131m Sanyo Semiconductor Corporation, lc72131m Datasheet - Page 6

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lc72131m

Manufacturer Part Number
lc72131m
Description
Am/fm Pll Frequency Synthesizer
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Pin Functions
XIN
XOUT
FMIN
AMIN
CE
CL
DI
DO
V
DD
Symbol
Pin No.
(MFP pin Nos. are
in parentheses.)
22 (20)
16 (14)
15 (13)
17 (15)
1 (1)
3 (2)
5 (4)
4 (3)
6 (5)
Xtal OSC
Local oscillator
signal input
Local oscillator
signal input
Chip enable
Clock
Data input
Data output
Power supply
Type
• Crystal resonator connection
• FMIN is selected when the serial data input DVS bit is
• The input frequency range is from 10 to 160 MHz.
• The input signal passes through the internal divide-by-
• The divisor can be in the range 272 to 65535. However,
• AMIN is selected when the serial data input DVS bit is
• When the serial data input SNS bit is set to 1:
• When the serial data input SNS bit is set to 0:
• Used as the synchronization clock when inputting (DI) or
• Inputs serial data transferred from the controller to the
• Outputs serial data transferred from the LC72131 to the
• The LC72131 power supply pin (V
• The power on reset circuit operates when power is first
(4.5/7.2 MHz)
set to 1.
two prescaler and is input to the swallow counter.
since the signal has passed through the divide-by-two
prescaler, the actual divisor is twice the set value.
set to 0.
— The input frequency range is 2 to 40 MHz.
— The signal is directly input to the swallow counter.
— The divisor can be in the range 272 to 65535, and
— The input frequency range is 0.5 to 10 MHz.
— The signal is directly input to a 12-bit programmable
— The divisor can be in the range 4 to 4095, and the
Set this pin high when inputting (DI) or outputting (DO)
serial data.
outputting (DO) serial data.
LC72131.
controller.
The content of the output data is determined by the
serial data DOC0 to DOC2.
applied.
LC72131, 72131M
the divisor used will be the value set.
divider.
divisor used will be the value set.
Functions
DD
= 4.5 to 5.5 V)
Circuit configuration
Continued on next page.
No. 4921-6/23

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