LV24250LS Sanyo Semicon Device, LV24250LS Datasheet - Page 11

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

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Register 0Dh – RADIO_CTRL1 – Radio control 1 (Read/Write)
Register 0Eh – RADIO_CTRL2 – Radio control 2 (Read/Write)
bit 7 :
bit 6 :
bit 5 :
bit 4 :
bit 3 :
bit 2 :
bit 1-0 :
bit 7-5 :
bit 4-2 :
bit 1 :
bit 0 :
IF_SEL
7
7
SOFTST [2 : 0]
IFBWSEL
IF_SEL : IF Frequency Setting
IFBWSEL : IF band width setting
VOL_2 : Volume setting
DEEM : de-emphasis
ST_M : Stereo/mono setting
nMUTE : Audio Mute
VOL [1 : 0] : Volume Setting
SOFTST [2 : 0] : Soft Stereo setting
SOFTMU [2 : 0] : Soft audio mute setting
VOL_3 : Volume setting
STABI_BP : Internal regulator by-pass bit
6
6
0 = 150kHz
1 = 170kHz
0 = 50%
1 = 100%
For details, refer to Bit0,1 for RADIO_CTRL1
0 = 50μs : Korea, China, Europe, Japan
1 = 75μs : USA
0 = Stereo enabled
1 = Stereo disabled (mono mode)
0 = Mute On
1 = Mute Off
Vol_3 Vol_2 Vol_1 Vol_0
…
000b = Soft stereo level 3
001b = Disable soft stereo
010b = Soft stereo level 1 (*)
100b = Soft stereo level 2
Note : do not use without these value.
(*) : recommended setting
000b = Soft audio mute level 3
001b = Disable soft audio mute
010b = Soft audio mute level 1
100b = Soft audio mute level 2 (*)
Note : do not use without these value.
(*) : recommended setting
0 = Internal regulator operate (normal)
1 = Internal regulator by-pass
* It controls by Bit5 of RADIO_CTRL1 and combination 4Bit with Bit1 of RADIO_CTRL2.
For details, refer to Bit0,1 for RADIO_CTRL1
1
0
0
0
0
0
0
1
AGC_SPD
5
5
0
0
1
1
0 : Minimum level
1
0
1 : Max level
DEEM
LV24250LS
4
4
SOFTMU [2 : 0]
ST_M
3
3
nMUTE
2
2
N/A
1
1
VOL [1 : 0]
No.A1699-11/18
STABI_BP
0
0
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