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LC72151V View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
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LC72151V Datasheet PDF : 29 Pages
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Pin Functions
Pin No. Symbol
30
XIN
1
XOUT
Usage
X’tal OSC
LC72151V
Function
• Crystal oscillator connection.
(10.25 or 10.35 MHz)
• FMIN is selected by setting DVS in the control data to 1.
• Enters high-speed locking mode by setting SNS in the control data
to 1.
8
FMIN
Local oscillator signal input • Enters normal mode by setting SNS in the control data to 0.
• Input frequency: 10 to 160 MHz
• The signal is transmitted to the swallow counter.
• The divisor can be set to a value in the range 272 to 65,535.
• AMIN is selected by setting DVS in the control data to 0.
• When SNS in the control data is set to 1:
Input frequency: 2 to 40 MHz
The signal is directly transmitted to the swallow counter.
9
AMIN
Local oscillator signal input
• When SNS in the control data is set to 0:
Input frequency: 0.5 to 10 MHz
The signal is directly transmitted to the 12-bit programmable divider.
The divisor can be set to a value in the range 5 to 4,095.
29
CE
Chip enable
• This pin must be set to the high level when inputting serial data to the
LC72151V DI pin and when outputting serial data from the DO pin.
28
DI
Input data
• Serial data input for transferring data from the controller to the
LC72151V.
27
CL
Clock
• Data synchronization clock signal used when inputting serial data to
the LC72151V DI pin and when outputting serial data from the DO pin.
26
DO
Output data
• Serial data output for transferring data from the LC72151V to the
controller.
Pin circuit
S
S
S
6
VDD
7
VSS
2
I/O-1
3
I/O-2
Power
Ground
I/O ports
• LC72151V power supply. A voltage in the range 4.5 to 5.5 V must be
provided when the PLL circuit is operating.
• The power-on reset circuit operates when power is first applied.
Note: Power must be applied to AVDD before applied to VDD and
AVDD must be higher than or equal to VDD.
• LC72151V ground.
• Input/output dual function pins
• The function will be selected according to IOC1 and IOC2 in the
control data.
Data = 0: Input port
1: Output port
• When specified as an input port:
The input pin state is transmitted to the system microcontroller from
DO pin.
Input state = Low: data is 0
= High: data is 1.
• When specified as an output port:
The output state will be determined according to I/O-1 and I/O-2 in
the control data.
Data = 0: Low
= 1: Open
• These pin function as an input port at a power-on reset.
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Continued on next page.
No. 6976-7/29
 

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