LV24100LP Datasheet, PDF (12/18 Pages) Sanyo Semicon Device – Bi-CMOS IC FM and AM Tuner IC for Small Portable Equipment

LV24100LP
Block 1, 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]: CAP bank value to control the FM RF frequency (coarse steps)
Note: 7½ bit CAP value (Bit[7:6]: Combination 10b and 01b results in the same CAP-range)
Negative control: de RF frequency decreases when increasing the register’s value
See also FM_OSC register
Block 1, Register 0Ah-CNT_L-Counter Value Low Register(Read-only)
7
6
5
4
3
2
CNT_LSB[7:0]
Bit 7-0:
CNT_LSB[7:0]: Lower 8-bit value of the 16 bit counter
Block 1, Register 0Bh-CNT_H-Counter Value High Register(Read-only)
7
6
5
4
3
2
CNT_MSB[7:0]
Bit 7-0:
CNT_MSB[7:0]: Upper 8-bit value of the 16 bit counter
Block 1, Register 0Ch-CTRL_STAT-Control Status Register(Read-only)
7
6
5
4
3
2
REV3
REV2
REV1
REV0
Reserved
Bit 7-4:
REV[3:0]: should be read as 0Dh
Bit 3-2:
Reserved[1:0]: should be read as all 1
Bit 1:
COV_FLG: counter overflow flag
0 = No overflow of the internal counter
1 = The last counting loop causes overflow of the internal counter
Bit 0:
AFC_FLG: AFC out of range bit
0 = AFC is within control range
1 = AFC is out of control range
Note: Reading this register will clear AFC, count 2 done interrupt.
COV_FLG is clear when CLR_CNT1 bit of CNT_CTRL register is high
Block 1, Register 0Dh-RADIO_STAT-Radio Station Status Register(Read-only)
7
6
5
4
3
2
RSS_MS
RSS_FS
Bit 7:
RSS_MS: Radio station mono/stereo state bit
0 = Mono
1 = Stereo
Bit 6-0:
RSS_FS[6:0]: Radio station field strength bits
1111111b = Field strength less then 10dBμV
0111111b = Field strength between 10 to 20dBμV
0011111b = Field strength between 20 to 30dBμV
0001111b = Field strength between 30 to 40dBμV
0000111b = Field strength between 40 to 50dBμV
0000011b = Field strength between 50 to 60dBμV
0000001b = Field strength between 60 to 70dBμV
0000000b = Field strength above 70dBμV
Note: Reading this register will clear field strength and mono/stereo interrupt
1
0
1
0
1
0
1
COV_FLG
0
AFC_FLG
1
0
No.A0194-12/18