LV24030LP Datasheet, PDF (11/14 Pages) Sanyo Semicon Device – Bi-CMOS IC FM Tuner IC for Small Portable Equipment

LV24030LP
Register 07h – RADIO_STAT – Radio Station Status Register (Read-only)
7
6
5
4
3
2
RSS_MS
RSS_FS
Bit 7
RSS_MS: mono/stereo determination
0 = mono
1 = stereo
Bit 6-0
RSS_FS[6:0]: Field Strength bit
1111111b = Field Strength<10dBμV
0111111b = Field Strength 10 to 20dBμV
0011111b = Field Strength 20 to 30dBμV
0001111b = Field Strength 30 to 40dBμV
0000111b = Field Strength 40 to 50dBμV
0000011b = Field Strength 50 to 60dBμV
0000001b = Field Strength>70dBμV
Note: +5dB for Register 04h bit3 = 1
Register 08h-STEREO_CTRL-Stereo Control Register (Write-only)
7
6
5
4
3
PICMPS
SD_PM
ST_M
FRCST
IF_PM_L
Bit 7
PICMPS: Pilot compensation
0 = Disable
1 = Enable
Bit 6
SD_PM: Stereo Decorder PLL Mute
0 = PLL ON (for normal operation)
1 = PLL OFF (for measurement, etc.)
Bit 5
ST_M: mono/stereo changeover
0 = Stereo
1 = mono
Bit 4
FRCST: Forced stereo
0 = Normal
1 = Forced stereo (for testing)
Bit 3
IF_PM_L:IF PLL Mute
0 = PLL OFF (for measurement)
1 = PLL ON (for normal operation)
Bit 2
DCFB_SPD: DC feedback speed
0 = Normal speed (for normal operation)
1 = High speed (for testing)
Bit 1
DCFB_OFF: DC Feedback control
Fixed at 0
Bit 0
AGCSP: AGC speed control
0 = Normal speed
1 = High speed
Note: With this bit ON, rise of the Field strength becomes faster.
2
DCFB_SPD
Register 09h-FM_CAP-FM RF Capacitor Bank Register (Write-only)
7
6
5
4
3
2
FMCAP[7:0]
Bit 7-0
FMCAP[7:0]: FM RF frequency CAP bank (rough adjustment)
1
1
DCFB_OFF
1
0
0
AGCSP
0
No.A1003-11/14