PA3212L 查看數據表（PDF） - Unisonic Technologies

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PA3212L

2.6W STEREO AUDIO AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL

Unisonic Technologies 

PA3212

„ PIN CONFIGURATION

CMOS IC

„ PIN DESCRIPTION

PIN NO.

1,12,13,24

11

2

3

5

6

7,18

8

PIN NAME

GND

BYPASS

GAIN0

GAIN1

LLINEIN

LHPIN

PVDD

RIN

10

LIN

14

PC-BEEP

17

HP/ LINE

15

SE/ BTL

19

VDD

20

RHPIN

23

RLINEIN

22

SHUTDOWN

4

LOUT+

9

LOUT-

16

ROUT-

21

ROUT+

I/O

Ground.

DESCRIPTION

Connected to voltage divider

I For gain control: Bit 0

I For gain control: Bit 1

I Line input for Left channel, available when pin15 is held low.

I Headphone input Left channel, available when pin15 is held high.

I Power supply voltage.

I

Differential input for right channel. And for single-ended inputs is also AC

ground.

Differential input for Left channel. And for single-ended inputs is also AC

I ground.

I

PC-BEEP mode input. When at least eight continuous >1-VPP square

waves is input to this pin, PC-BEEP is enabled.

I Input of MUX control. Being high to select the inputs of Pin6, 20, and low

to select inputs of PIN 5, 23.

I Low for BTL mode, high for SE mode.

I Analog VDD supply voltage

I Right channel headphone input, selected when pin17 is held high.

I Headphone input right channel, available when pin17 is held low.

I In shutdown mode when held low, expect PC-BEEP remains active.

O In BTL mode: left channel + output; In SE mode: left channel + output

O In BTL mode: left channel - output; In SE mode: high impedance

O In BTL mode: right channel + output; In SE mode: right channel + output

O In BTL mode: right channel - output; In SE mode: high impedance

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

2 of 9

QW-R502-310.A

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