LV25400W_10 Datasheet, PDF (31/42 Pages) Sanyo Semicon Device – For Automotive Applications DSP Tuner Front End

LV25400W
Control Data Documentation
No.
Control block/data
Description
(1) Programmable divider data • Sets the programmable divider's divisor.
P0 to P15
This is a binary value in which P0 is the LSB, P15 the MSB.
DVS = 0 : The IC internal FMIN pin is stopped (pulled down)
DVS
DVS = 1 : The IC internal FMIN pin is selected
Set divisor (N) : 272 to 65536
Input frequency range : 120 to 270 MHz
* : See the "Programmable Divider Structure" section for more information.
(2) AM oscillator divisor control • OSC D1, OSC D2−AM oscillator divisor control
OSC D1, OSC D2
OSC D1
0
0
1
1
OSC D2
0
1
0
1
Divisor
Divide by 10
Divide by 8
Divide by 6
Divide by 4
(3) Tuner mode switching
• Tuner mode switching between AM and FM
1 = AM 0 = FM
AM/FM
(4) Programmable divider stop • DVS = 0 : The IC internal PLL-IN pin is stopped (pulled down)
DVS = 1 : The IC internal PLL-IN pin is selected
DVS
Set divisor (N) : 272 to 65536
Input frequency range : 120 to 270 MHz
* : See the "Programmable Divider Structure" section for more information.
(5) Reference divider data
• Selects the reference frequency.
R0 to R3
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 setting (kHz)
Crystal : 20.5MHz Crystal : 4.5/7.2MHz
Illegal value
100
100
50
50
25
25
25
12.5
12.5
6.25
6.25
3.125
3.125
3.125
3.125
10
10
Illegal value
9
5
5
1
1
Illegal value
3
Illegal value
30
Illegal value
Illegal value
Illegal value
Illegal value
Related data
AM/FM
OSC D1, D2
WB, OSC DIV
AM/FM
P0 to P15
P0 to P15
OSC D1, D2
CTS
GT0, GT1
CTP
CTC
Continued on next page.
No.A0633-31/42