LV24230LS Datasheet, PDF (11/17 Pages) Sanyo Semicon Device – Compact Portable Equipment 1-Chip FM Tuner IC

LV24230LS
Register 0Fh – RADIO_CTRL3 – Radio control 3 (Read/Write)
7
6
5
4
3
IPOL
bit 7 :
SM_IE
RAD_IE
IPOL : Interrupt (IRQ) Polarity
0 = IRQ active high
1 = IRQ active low
SD_PM
nIF_PM
bit 6 :
SM_IE : Command end interrupt
0 = Disable
1 = Enable
bit 5 :
RAD_IE : Radio Interrupt (field strength/stereo changes)
0 = Disable
1 = Enable
bit 4 :
SD_PM : Stereo decoder clock PLL mute
0 = SD PLL On (Normal Operation)
1 = SD PLL Off (Adjustment)
bit 3 :
nIF_PM : IF PLL mute
0 = IF PLL Off (Adjustment)
1 = IF PLL On (Normal Operation)
bit 2-1 :
EXT_CLK_CFG [1 : 0] : External Clock Setting
EXT_CLK_CFG [1 : 0]
00
01
10
11
Reference clock
Off
32768Hz crystal oscillator
Oscillator clock source / 32
(for high frequency source)
Oscillator clock source
(for low frequency source)
bit 0 :
PW_RAD : Radio Circuit Power
0 = Power Off (Stand-by).
1 = Power On
Note : At the time of start, PW_RAD becomes 0 (Stand-by)
Register 10h – TNPL – Tune position low (Read-Only)
7
6
5
4
3
TUNEPOS [7 : 0]
bit 7-0 :
TUNEPOS [7 : 0] : Current RF Frequency (Low 8bit)
2
1
EXT_CLK_CFG [1 : 0]
0
PW_RAD
2
1
0
No.A1989-11/17