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LC72137 View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
Manufacturer
LC72137 Datasheet PDF : 23 Pages
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LC72137, 72137M
DI Control Data Descriptions
No.
Control block/data
Description
Programmable divider data • Data that sets the programmable divider
P0 to P15
A binary value in which P15 is the MSB. The LSB changes depending on DVS and SNS.
(*: Don’t care.)
DVS
1
0
0
SNS LSB
*
P0
1
P0
0
P4
Divisor setting (N)
272 to 65535
272 to 65535
4 to 4095
Actual divisor
Twice the value of the setting
The value of the setting
The value of the setting
(1)
DVS, SNS
Note: P0 to P3 are ignored when P4 is the LSB.
• Selects the signal input pin (AMIN or FMIN) for the programmable divider, switches the
frequency range. (*: Don’t care.)
DVS SNS Input pin
Input frequency range
1
*
FMIN
10 to 160 MHz
0
1
AMIN
2 to 40 MHz
0
0
AMIN
0.5 to 10 MHz
Reference divider data
R0 to R3
(2)
Note: See the “Programmable Divider” item for details.
• Reference frequency (fref) selection data
R3
R2
R1
R0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
Reference frequency (kHz)
25
25
25
25
12.5
6.25
3.125
3.125
5
5
5
1
3
15
PLL INHIBIT + Xtal OSC STOP
PLL INHIBIT
IF counter control data
CTE
GT0, GT1
Note: PLL INHIBIT
The programmable divider and IF counter blocks are stopped, the FMIN, AMIN,
and IFIN pins go to the pulled-down state, and the charge pump output pin goes to
the high-impedance state.
• IF counter measurement start specification
CTE = 1: Counter start
CTE = 0: Counter reset
• IF counter measurement time determination
GT1
GT0
Measurement time (ms)
Wait time (ms)
(3)
0
0
4
3 to 4
0
1
8
3 to 4
1
0
16
7 to 8
1
1
32
7 to 8
Note: See the “IF Counter Structure” item for details.
(4)
I/O port specification data • Data that specifies input or output for the I/O dual-use pins (IO1, IO2)
IOC1, IOC2
Data: 0 = input mode, 1 = output mode
Output port data
(5) BO1 to BO4, IO1, IO2
• BO1 to BO4, IO1, and IO2 output state data
Data: 0 = open, 1 = low
• “Data = 0: Open” is selected following a power-on reset.
Related data
IFS
IOC1
IOC2
Continued on next page.
No. 5743-10/23
 

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