LV24250LS Datasheet, PDF (11/18 Pages) Sanyo Semicon Device – Compact Portable Equipment 1-Chip FM Tuner IC

LV24250LS
Register 0Dh – RADIO_CTRL1 – Radio control 1 (Read/Write)
7
IF_SEL
bit 7 :
6
5
IFBWSEL
AGC_SPD
IF_SEL : IF Frequency Setting
0 = 150kHz
1 = 170kHz
4
DEEM
3
ST_M
2
nMUTE
bit 6 :
IFBWSEL : IF band width setting
0 = 50%
1 = 100%
bit 5 :
VOL_2 : Volume setting
For details, refer to Bit0,1 for RADIO_CTRL1
bit 4 :
DEEM : de-emphasis
0 = 50s : Korea, China, Europe, Japan
1 = 75s : USA
bit 3 :
ST_M : Stereo/mono setting
0 = Stereo enabled
1 = Stereo disabled (mono mode)
bit 2 :
nMUTE : Audio Mute
0 = Mute On
1 = Mute Off
bit 1-0 :
VOL [1 : 0] : Volume Setting
* It controls by Bit5 of RADIO_CTRL1 and combination 4Bit with Bit1 of RADIO_CTRL2.
Vol_3 Vol_2 Vol_1 Vol_0
0
0
0
0 : Minimum level
0
0
0
1
0
0
1
0
…
1
1
1
1 : Max level
1
0
VOL [1 : 0]
Register 0Eh – RADIO_CTRL2 – Radio control 2 (Read/Write)
7
6
5
4
3
2
SOFTST [2 : 0]
SOFTMU [2 : 0]
bit 7-5 :
SOFTST [2 : 0] : Soft Stereo setting
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
bit 4-2 :
SOFTMU [2 : 0] : Soft audio mute 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
bit 1 :
VOL_3 : Volume setting
For details, refer to Bit0,1 for RADIO_CTRL1
bit 0 :
STABI_BP : Internal regulator by-pass bit
0 = Internal regulator operate (normal)
1 = Internal regulator by-pass
1
0
N/A
STABI_BP
No.A1699-11/18