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LC75421 の電気的特性と機能

LC75421のメーカーはSanyo Semicon Deviceです、この部品の機能は「Electronic Volume Controller for Cars」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC75421
部品説明 Electronic Volume Controller for Cars
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC75421 Datasheet, LC75421 PDF,ピン配置, 機能
Ordering number : ENN6866A
CMOS IC
LC75421M
Electronic Volume Controller for Cars
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)
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 19
1 0.8
(0.8)
0.3 18
0.25
SANYO: MFP36SDJ (375 mil)
• 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
90503TN (OT) / 20901RM (OT) No. 6866-1/24

1 Page





LC75421 pdf, ピン配列
Equivalent Circuit Block Diagram
LC75421M
4
LROUT
5
LFOUT
LFIN
1 µF
LOUT
0.15 µF
3.7 k0.15 µF
LSB
6
7
8
LBASS2
9
0.082 µF
7.68 k0.082 µF
10
LBASS1
1500 pF
11
LTRE
1 µF
12
LIN
13
LSELO
3 2 1 36
35
34
RROUT
33
RFOUT
RFIN
32
1 µF
ROUT
31
0.15 µF
0.15 µF 3.7 k
30
RSB
RBASS2
29
0.082 µF
0.082 µF 7.68 k
28
RBASS1
1500 pF
27
RTRE
26
RIN
1 µF
25
RSELO
14 15 16 17 18 19 20 21 22 23 24
No. 6866-3/24


3Pages


LC75421 電子部品, 半導体
LC75421M
Control Timing and Data Format
To control the LC75421M, input specified serial data to the CE, CL, and DI pins.
The data configuration consists of a total of 52 bits broken down into 8 address bits and 44 data bits.
CE
DI B0 B1 B2 B3 A0 A1 A2 A3 D0 D1 D2 D3 D4 D5
CL
CE
1 µs 1 µs 1 µs
min min min
1 µs
min
CL
D38 D39 D40 D41 D42 D43
1 µs
min
DI
BBBBAAAA
01230123
1 µs TDEST
10000001
Address code
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
Fader step control
0 0 0 0 –dB
1 0 0 0 –60 dB
0 1 0 0 –45 dB
1 1 0 0 –35 dB
0 0 1 0 –25 dB
1 0 1 0 –20 dB
0 1 1 0 –18 dB
1 1 1 0 –16 dB
0 0 0 1 –14 dB
1 0 0 1 –12 dB
0 1 0 1 –10 dB
1 1 0 1 –8 dB
0 0 1 1 –6 dB
1 0 1 1 –4 dB
0 1 1 1 –2 dB
1 1 1 1 0 dB
Bass control
Boost
1 1 1 0 STEP15
0 1 1 0 STEP14
1 0 1 0 STEP13
0 0 1 0 STEP12
1 1 0 0 STEP11
0 1 0 0 STEP10
1 0 0 0 STEP9
0 0 0 0 STEP8
1 0 0 1 STEP7
0 1 0 1 STEP6
1 1 0 1 STEP5
0 0 1 1 STEP4
1 0 1 1 STEP3
0 1 1 1 STEP2
1 1 1 1 STEP1
Cut
Treble control
Boost
Super bass control
1 1 1 0 STEP15
0 1 1 0 STEP14
0 0 0 0 STEP0(FLAT)
1 0 1 0 STEP13
1 0 0 0 STEP1
0 0 1 0 STEP12
0 1 0 0 STEP2
1 1 0 0 STEP11
1 1 0 0 STEP3
0 1 0 0 STEP10
0 0 1 0 STEP4
1 0 0 0 STEP9
1 0 1 0 STEP5
0 0 0 0 STEP8
0 1 1 0 STEP6
1 0 0 1 STEP7
1 1 1 0 STEP7
0 1 0 1 STEP6
0 0 0 1 STEP8
1 1 0 1 STEP5
1 0 0 1 STEP9
0 0 1 1 STEP4
0 1 0 1 STEP10(BOOST max) 1 0 1 1 STEP3
0 1 1 1 STEP2
1 1 1 1 STEP1
Cut
Volume control
Fader
rear/front
control
0 Rear
1 Front
Input switch control (1)
Input switch control (2)
Input mute
switch control
0 OFF
1 ON
TEST mode
Input gain control
00 0 0
0 dB
1 0 0 0 +1.25 dB
0 1 0 0 +2.50 dB
1 1 0 0 +3.75 dB
0 0 1 0 +5.00 dB
1 0 1 0 +6.25 dB
0 1 1 0 +7.50 dB
1 1 1 0 +8.75 dB
0 0 0 1 +10.00 dB
1 0 0 1 +11.25 dB
0 1 0 1 +12.50 dB
1 1 0 1 +13.75 dB
0 0 1 1 +15.00 dB
1 0 1 1 +16.25 dB
0 1 1 1 +17.50 dB
1 1 1 1 +18.75 dB
Channel selection
0 0 Initial setting
1 0 Lch
0 1 Rch
1 1 L/R simultaneous
Output gain control
0 0 0 dB
0 1 0 dB
1 0 +6.5 dB
1 1 +8.5 dB
Caution: Be sure to set D36 to D38 and D40 to D43
to “0” for the TEST bit of the IC.
No. 6866-6/24

6 Page



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共有リンク

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部品番号部品説明メーカ
LC75421

Electronic Volume Controller for Cars

Sanyo Semicon Device
Sanyo Semicon Device
LC75421M

Electronic Volume Controller for Cars

Sanyo Semicon Device
Sanyo Semicon Device


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