lc75412e Sanyo Semiconductor Corporation, lc75412e Datasheet - Page 15

• Manufacturer Part Number: lc75412e
• Description: Electronic Volume Controller For Car Audio Systems
• Manufacturer: Sanyo Semiconductor Corporation

Volume Block Equivalent Circuit Block Diagram
LCT
R10=1930
R11=1720
R12=1533
R13=1366
R14=1218
R15=1085
R1=5434
R2=4845
R3=4319
R4=3850
R5=3431
R6=3058
R7=2726
R8=2429
R9=2165
R16=967
R17=862
R18=768
R19=685
R20=610
R21=544
R22=485
R23=432
R24=385
R25=343
R26=306
R27=273
R86
1M
LVRIN
–10dB
–11dB
–12dB
–13dB
–14dB
–15dB
–16dB
–17dB
–18dB
–19dB
–20dB
–21dB
–22dB
–23dB
–24dB
–25dB
–26dB
–27dB
–1dB
–2dB
–3dB
–4dB
–5dB
–6dB
–7dB
–8dB
–9dB
0dB
1500
R81
R28=243
R29=216
R30=193
R31=172
R32=153
R33=839
R34=748
R35=667
R36=594
R37=530
R38=472
R39=421
R40=375
R41=334
R42=298
R43=266
R44=237
R45=211
R46=188
R47=168
R48=149
R49=133
R50=119
R51=106
R52=94
R53=84
R54=75
LC75412E, 75412W
1227
R82
–28dB
–29dB
–30dB
–31dB
–32dB
–33dB
–34dB
–35dB
–36dB
–37dB
–38dB
–39dB
–40dB
–41dB
–42dB
–43dB
–44dB
–45dB
–46dB
–47dB
–48dB
–49dB
–50dB
–51dB
–52dB
–53dB
–54dB
1230
R83
R55=133
R56=119
R57=106
R61=134
R62=119
R63=106
R67=134
R68=119
R69=106
R73=134
R74=120
R75=107
R80=552
R58=94
R59=84
R60=75
R64=95
R65=84
R66=75
R70=95
R71=85
R72=75
R76=95
R77=85
R78=76
R79=67
1233
R84
LVref
1236
R85
–55dB
–56dB
–57dB
–58dB
–59dB
–60dB
–61dB
–62dB
–63dB
–64dB
–65dB
–66dB
–67dB
–68dB
–69dB
–70dB
–71dB
–72dB
–73dB
–74dB
–75dB
–76dB
–77dB
–78dB
–79dB
–
Same for right channel
Unit (Resistance: )
Total resistance of
48.746 k over tap
Total resistance of
1.256 k under tap
(LOUD OFF)
Total resistance of
7.662 k under tap
(LOUD ON)
To tone block
No. 7053-15/21