LV24250LS Sanyo Semicon Device, LV24250LS Datasheet - Page 14

• Manufacturer Part Number: LV24250LS
• Description: 1-Chip FM Tuner IC
• Manufacturer: Sanyo Semicon Device

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Register 1Dh – SCN_CTRL – Scan control (Read/Write)
Register1Eh – TARGET_VAL_L – Target Value Low Register (Read/Write)
Register 1Fh – TARGET_VAL_H – Target Value High Register (Read/Write)
bit 7-6 :
bit 5 :
bit 4 :
bit 3-1 :
bit 0 :
bit 7-0 :
bit 7-0 :
With radio power ON, lower eight bits of the target frequency are set. Then, set higher eight bits of the target frequency to this register. The command is
executed.
7
7
7
GRID [1 : 0]
GRID [1 : 0] : FM station search frequency interval :
FLL_ON : FLL Control
Reserved : 0 (Fix)
FS [2 : 0] : Field strength setting at the time of FM station search and a frequency adjustment bit
SHF5DB : Scan stop level +5dB
TARGET [7 : 0] : Target frequency low 8 bit :
TARGET [15 : 8] : Target frequency High 8 bit :
6
6
6
0 = IFSD set
1 = 50kHz grid
2 = 100kHz grid
3 = 200kHz grid
0 = FLL OFF
1 = FLL ON
During setting of the FM frequency and during seek, keep this OFF. Turn it ON after tuning.
However, '1' is set when capacity is added to 16pin, and it uses it as Smoothing Filter(FLL_LPF).
Set 1 for setting of IFSD.
Tuning frequency or Limit Frequency for FM Station Search
Target value of oscillator calibration, Tuning frequency value or limit frequency value for station search
Note : GRID [1 : 0] is not 0 TARGET [15 : 14] has different definition
FLL_ON
5
5
5
FLL_MODE
LV24250LS
4
4
4
TARGET [15 : 8]
TARGET [7 : 0]
3
3
3
FS [2 : 0]
2
2
2
1
1
1
No.A1699-14/18
SHF5DB
0
0
0
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