LV3329PE 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LV3329PE

For Car Audio Systems Electronic Volume IC

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin name

23

LFOUT

22

LROUT

11

RFOUT

12

RROUT

LV3329PE

Function

Fader output pins.Attenuation is possible

separately for the front end and rear end.

42

Vref

Connect a capacitor of a few tens of μF

between Vref and AVSS (VSS) as a 0.5 × VDD

voltage generator, current ripple

countermeasure.

36

VREG

Internal logic voltage pin.

37

VDD

13

DVSS

21

AVSS

38

MUTE

Power supply pin.

Logic ground pin.

Analog ground pin.

External muting control pin.

Setting this pin to VSS level sets forcibly fader

volume block to -∞ level.

40

TIM

18

CL

19

DI

20

CE

16

TEST3

15

TEST4

14

TEST5

41

TEST1

39

TEST2

17

OSC

Timer pin when there is no signal in the zero

cross circuit.Forcibly set data when there is no

zero cross signal, from the time the data is set

until the timer ends.

Input pin for serial data and clock used for

control.

Chip enable pin.Data is written to the internal

latch and the analog switches are operated

when the level changes from High to Low. Data

transfer is enabled when the level is High.

Connect to VSS

Normally this pin is OPEN.

IC test pin.

Normally this pin is OPEN.

External oscillat input pin.

Equivalent Circuit

VDD

- 200Ω

+

-

20kΩ

+

20kΩ

LVref

RVref

-

100kΩ

+

100kΩ

VREG

VDD

VDD

VDD

50kΩ

1kΩ

VDD

VREG

930kΩ

VDD

1kΩ

VDD

No.A1856-9/30

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