LC7538JM データシートの表示（PDF） - SANYO -> Panasonic
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LC7538JM Datasheet PDF : 14 Pages
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Pin Descriptions
Pin name
LROUT
LFOUT
RROUT
RFOUT
Pin No.
1
2
36
35
LFIN
3
RFIN
34
LC7538JM
Description
• These pins function as output pins for the fader. Output reduction for rear and
front is performed separately for each. Attenuation capacity is unified for
both left and right. Step positioning is designed using an open circuit so that
reception is performed using high impedance.
• When utilizing the fader function, these pins function as input pins.
• Low impedance driven.
LVref
RVref
• These pins are common pins for fader volume, tone and main volume.
4
The pattern impedance connected here should be lowered as much as
possible.
• LVref and RVref are not connected to VSS.
• Connections for LVref and RVref to VSS should be established externally to
match all specifications. Notably, attention should be paid to capacity since
capacitors are subject to residual resistance during volume output reduction
when installed between LVref (RVref) and VSS as is the case with single
power sources.
33
• Normally, high voltage applied from VDD.
L1dBOUT
R1dBOUT
L1dBIN
R1dBIN
L5dBOUT
R5dBOUT
LCT1
LCT2
RCT1
RCT2
L5dBIN
R5dBIN
LTOUT
RTOUT
5
• These pins are output pins for the 1 dB step attenuator located in the section
main volume.
32
6
• These pins are input pins for the 1 dB step attenuator located in the section
main volume.
• Low impedance driven.
31
7
• These pins are output pins for the 5 dB step attenuator located in the section
main volume.
30
9
8
• These pins are for loudness control. Connect a high-band compensation
capacitor between CT1 to 5dB IN and a low-band compensation capacitor
28
between CT2 to Vref.
29
10
• These pins are input pins for the 5 dB step attenuator located in the section
main volume.
• Low impedance driven.
27
11
• These pins are output pins for tone control.
26
Remarks
Continued on next page.
No. 4799-5/14
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