LV24010LP Datasheet, PDF (8/18 Pages) Sanyo Semicon Device – Bi-CMOS LSI Compact Portable Equipment 1-Chip FM+RDS Tuner IC

LV24010LP
(3) Register description (For each register content)
Block x, Register 01h - BLK_SEL - Block Select register (Write Only)
7
6
5
4
3
2
1
BN[7:0]
bit 7-0:
BN[7:0]: 8-bit block number. For LV24010, the following numbers are valid:
01h.
02h.
04h.
Note: This register can be accessed from any block.
Block 1, Register 00h - CHIP_ID - Chip identify register (Read Only)
7
6
5
4
3
2
1
ID[7:0]
bit 7-0:
ID[7:0]: 8-bit chip ID. The following ID’s are defined:
0Bh for LV24010.
Block 1, Register 02h - MSRC_SEL - Measurement Source Select Register (Write-only)
7
MSR_O
6
AFC_LVL
5
AFC_SPD
4
Reserved
3
Reserved
2
MSS_SD
1
MSS_FM
bit 7:
MSR_O: Output measure source to DATA-pin.
0 = Measuring source not available at DATA-pin (normal operation).
1 = Measuring source available at DATA-pin (test mode).
bit 6:
AFC_LVL: AFC trigger level.
0 = AFC is always active (trigger at 0dBµV).
1 = AFC is only active when field strength is above 20dBµV.
bit 5:
bit 4:
AFC_SPD: AFC speed.
0 = AFC adjusts with 3Hz speed.
1 = AFC adjusts with 8kHz speed (test mode).
Reserved: Must be programmed with 0.
bit 3:
Reserved: Must be programmed with 0.
bit 2:
MSS_SD: Stereo decoder oscillator measurement.
0 = Disable stereo decoder oscillator measurement.
1 = Enable stereo decoder oscillator measurement.
bit 1:
MSS_FM: FM RF oscillator measurement.
0 = Disable FM RF oscillator measurement.
1 = Enable FM RF oscillator measurement.
bit 0:
MSS_IF: IF oscillator measurement.
0 = Disable IF oscillator measurement.
1 = Enable IF oscillator measurement.
Note:
- Only one of the measurement source MSS_xx bits may be set at a time.
- The FM RF frequency is divided by 256 before it goes to the measuring circuitry.
Block 1, Register 03h - FM_OSC - FM RF Oscillator Register (Write-only)
7
6
5
4
3
2
1
FMOSC[7:0]
bit 7-0:
FMOSC[7:0]: DAC value to control the FM RF oscillator (fine step)
Note:
- Positive DAC control (i.e. the frequency increases with the register’s value).
- See also FM_CAP register.
0
0
0
MSS_IF
0
No.A0466-8/18