LC75372E 查看數據表（PDF） - SANYO -> Panasonic

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LC75372E

Electronic Volume Control for Car Stereo Systems

SANYO -> Panasonic 

Pin Functions

Pin No.

Symbol

40

LVref

38

RVref

LC75372E

Equivalent I/O circuit

• Common pins for the main volume block, fader volume block, tone block, gain

control block, and input switching block.

• Since the capacitors connected between LVref/RVref and VSS become the

residual resistance when the volume control is at maximum attenuation, the

values of these capacitors must be chosen carefully.

• The applied voltage must never exceed VDD.

39

Vref

0.488 VDD voltage generation block. A capacitor must be connected between

Vref and VSS to suppress power supply ripple.

Function

41

LROUT

42

LFOUT

• Fader outputs. The front and rear systems can be attenuated independently.

The amount of attenuation is the same in the left and right channels.

37

RROUT

• Low impedance operational amplifier outputs

36

RFOUT

43

LFIN

• Fader inputs

35

RFIN

• Must be driven from low-impedance circuits.

44

LOUT

Tone control outputs

34

ROUT

3

LT1

2

LT2

Connections for the bass and treble compensation capacitors for the tone

1

LT3

control circuit

31

RT1

Connect high-band compensation capacitors between T1 and T2.

32

RT2

Connect low-band compensation capacitors between T2 and T3.

33

RT3

7

LCT1

6

LCT2

Loudness pins. Connect high-band compensation capacitors between

LCT1/RCT1 and L10dBIN/R10dBIN, and connect low-band compensation

27

RCT1

capacitors between LCT2/RCT2 and LVref/RVref.

28

RCT2

Continued on next page.

No. 5330-8/18

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