LC75421

Manufacturer Part NumberLC75421
DescriptionElectronic Volume Controller for Cars
ManufacturerSanyo Semiconductor Corporation
LC75421 datasheet
 


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Fader Volume Block Equivalent Circuit Diagram
LFIN
0 dB
10.284 k
–2 dB
8.169 k
–4 dB
6.489 k
–6 dB
5.154 k
–8 dB
4.094 k
–10 dB
3.252 k
–12 dB
2.583 k
–14 dB
2.052 k
Total = 50 k
–16 dB
1.630 k
–18 dB
1.295 k
–20 dB
2.188 k
–25 dB
1.923 k
–35 dB
0.608 k
–45 dB
0.231 k
–60 dB
0.050 k
– dB
LVref
When – data is sent to the main volume, S1 and S2 become open, and S3 and S4 simultaneously become ON.
LC75421M
LFOUT
S1
S2
S3
0 dB
S4
+6.5 dB
+8.5 dB
When FADER = “1”, S2 and S3 are ON
When FADER = “0”, S1 and S4 are ON
LROUT
26.342 k
4.866 k
50 k
18.792 k
0 dB
26.342 k
+6.5 dB
4.866 k
50 k
+8.5 dB
18.792 k
Same for right channel
Unit: (Resistance: )
No. 6866-14/24