LC75421

Manufacturer Part NumberLC75421
DescriptionElectronic Volume Controller for Cars
ManufacturerSanyo Semiconductor Corporation
LC75421 datasheet
 
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Volume Block Equivalent Circuit Diagram
LIN
0 dB
R1 = 5434
–1 dB
R2 = 4845
–2 dB
R3 = 4319
–3 dB
R4 = 3850
–4 dB
R5 = 3431
–5 dB
R6 = 3058
–6 dB
R7 = 2726
–7 dB
R8 = 2429
–8 dB
R9 = 2165
–9 dB
R10 = 1930
–10 dB
R11 = 1720
–11 dB
R12 = 1533
–12 dB
R13 = 1366
–13 dB
R14 = 1218
–14 dB
R15 = 1085
–15 dB
R16 = 967
–16 dB
R17 = 862
–17 dB
R18 = 768
–18 dB
R19 = 685
–19 dB
R20 = 610
–20 dB
R21 = 544
–21 dB
R22 = 485
–22 dB
R23 = 432
–23 dB
R24 = 385
–24 dB
R25 = 343
–25 dB
R26 = 306
–26 dB
R27 = 273
–27 dB
794
R81
LC75421M
R28 = 243
–28 dB
R29 = 216
–29 dB
R30 = 193
–30 dB
R31 = 172
–31 dB
R32 = 153
–32 dB
R33 = 137
–33 dB
R34 = 122
–34 dB
R35 = 108
–35 dB
R36 = 97
–36 dB
R37 = 86
–37 dB
R38 = 77
–38 dB
R39 = 68
–39 dB
R40 = 61
–40 dB
R41 = 54
–41 dB
R42 = 48
–42 dB
R43 = 86
–43 dB
R44 = 77
–44 dB
R45 = 69
–45 dB
R46 = 61
–46 dB
R47 = 55
–47 dB
R48 = 49
–48 dB
R49 = 87
–49 dB
R50 = 77
–50 dB
R51 = 69
–51 dB
R52 = 61
–52 dB
R53 = 55
–53 dB
R54 = 49
–54 dB
796
798
800
R82
R83
R84
Same for right channel
Unit: (Resistance: )
R55 = 87
–55 dB
R56 = 77
–56 dB
R57 = 69
–57 dB
R58 = 61
–58 dB
R59 = 55
–59 dB
R60 = 49
–60 dB
R61 = 87
–61 dB
R62 = 78
–62 dB
R63 = 69
–63 dB
R64 = 62
–64 dB
R65 = 55
–65 dB
R66 = 49
–66 dB
R67 = 87
–67 dB
R68 = 78
–68 dB
R69 = 69
–69 dB
R70 = 62
–70 dB
R71 = 55
–71 dB
R72 = 49
–72 dB
R73 = 87
–73 dB
R74 = 78
–74 dB
R75 = 69
–75 dB
R76 = 62
–76 dB
R77 = 55
–77 dB
R78 = 49
–78 dB
R79 = 44
–79 dB
R80 = 359
– dB
802
804
R85
R86
LVref
No. 6866-12/24
To
Treble
Block