LC75421

Manufacturer Part NumberLC75421
DescriptionElectronic Volume Controller for Cars
ManufacturerSanyo Semiconductor Corporation
LC75421 datasheet
 
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Ordering number : ENN6866A
Overview
The LC75421M is an electronic volume controller that
enables control of volume, balance, fader, bass/treble +
super bass, input switching, and input and output level
control functions using only a small number of external
components.
Functions
• Volume: 0 dB to –79 dB in 1-dB steps, and –∞ (81 positions)
Balance function with separate L/R control
• Fader: rear output or front output can be attenuated
across 16 positions (in 2-dB steps from 0 dB to -
20 dB, 5-dB steps from –20 dB to –25 dB, 10-dB
steps from –25 dB to –45 dB, and –60 dB, –∞)
• Bass/treble: A tone control circuit can be configured
using an external RC, with 15-position
control from 0 dB to ±11.9 dB in 1.7-dB
steps possible for both bass and treble
• Input gain: 0 dB to +18.75 dB (1.25-dB steps)
amplification is possible for the input signal.
• Output gain: Fader output can be selected among 0 dB,
+6.5 dB, and +8.5 dB.
• Input switching: Five input signals can be selected for
Left and for Right
• Super bass: Step control with 11 positions is possible,
with peaking characteristics (type T)
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Electronic Volume Controller for Cars
Features
• On-chip buffer amplifier cuts down number of external
components
• Low switching noise generated by on-chip switch due to
use of silicon gate CMOS process
• On-chip reference voltage circuit for analog ground
• Controls performed with serial input (CCB)
Package Dimensions
unit: mm
3263-MFP36SDJ (375 mil)
[LC75421M]
15.2
36
1
0.8
0.3
(0.8)
90503TN (OT) / 20901RM (OT) No. 6866-1/24
CMOS IC
LC75421M
19
18
0.25
SANYO: MFP36SDJ (375 mil)

LC75421 Summary of contents