LV25200M_10 Datasheet, PDF (35/45 Pages) Sanyo Semicon Device – Single chip Tuner IC for Car Radio

LV25200M
Description Of Control Data
No.
Control block/data
Description
(1) Programmable divider data ¤ Data to set the dividing ratio of the programmable divider.
P0 to P15
Binary value with P0 as LSB and P15 as MSB
(2) AM OSC dividing ratio
¤ OSC dividing ratio determination for AM OSC D1 and OSC D2
OSC D1
OSC D2
Dividing ratio
OSC D1,OSC D2
0
0
10-division
0
1
8-division
1
0
6-division
1
1
4-division
(3) General-purpose counter
measurement start control
CTE
(4) Reference divider data
R0 to R3
¤ General-purpose counter measurement start data
CTE =1: Count start
=0: Count reset
¤ 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)
Do not use
100
25
25
12.5
6.25
3.125
3.125
10
Do not use
5
1
Do not use
Do not use
Do not use
Do not use
(5) Stop of programmable
divider
DVS
(6) Tuner mode changeover
AM/FM
(7) Tuner mode changeover
SEEK1, SEEK2
¤ DVS=0: PLL-IN pin in IC stopped (pulled-down)
1: PLL-IN pin in IC selected
Set number of divisions (N): 272 to 65536
Input frequency range: 120 to 270MHz
* For details, refer to “Programmable Divider Composition.”
¤ AM/FM mode changeover
1=AM 0=FM
¤ Data to determine the mode of tuner
SEEK1
SEEK2
IF buffer control output
0
0
Do not use
1
0
STOP
0
1
RDS
1
1
SEEK
Related data
AM/FM
OSC D1,D2
AM/FM
P0 to P15
CTS
GT0,GT1
CTP
CTC
CTS
GT0,GT1
CTP
CTC
P0 to P15
OSC D1,D2
MODE1,
MODE2
Continued on next page.
No.A0976-35/45