lc75421m Sanyo Semiconductor Corporation, lc75421m Datasheet - Page 14

• Manufacturer Part Number: lc75421m
• Description: Electronic Volume Controller For Cars
• Manufacturer: Sanyo Semiconductor Corporation

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