PA3202

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2 of 11

www.unisonic.com.tw

QW-R502-106.B

PIN CONFIGURATION

1

GND/HS

2

3

LOUT+

4

LLINEIN

5

LHPIN

6

LBYPASS

7

8

SHUTDOWN

9

MUTE OUT

10

LOUT-

11

MUTE IN

12

GND/HS

GND/HS

13

SE/BTL

14

ROUT-

15

HP/LINE

16

NC

17

18

RBYPASS

19

RHPIN

20

RLINEIN

21

ROUT+

22

NC

23

GND/HS

24

PIN DESCRIPTION

PIN NO

PIN NAME

I/O

DESCRIPTION

1, 12, 13, 24

GND/HS

Power ground; directly connected to thermal pad.

6

LBYPASS

Tap to left channel internal mid-supply voltage divider bias

17, 23

NC

No connection

19

RBYPASS

Tap to right channel internal mid-supply voltage divider bias

4

LLINE IN

I

Left channel line input; selected when HP/LINE is held low

5

LHP IN

I

Left channel headphone input; selected when HP/LINE is held high

7

I

Left channel power supply and for primary bias circuits

8

SHUTDOWN

I

9

MUTE OUT

I

Follows MUTE IN, provides buffered output

11

MUTE IN

I

Mute all amplifiers input; high active to mute amplify, low active to normal

operation

14

SE/BTL

I

SE & BTL mode selection; active high for SE mode, active low for BTL

mode

16

HP/LINE

I

MUX control input, active high to select headphone input, active low to

select line input

18

I

Right channel power supply

20

RHPIN

I

Right channel headphone input, selected when HP/LINE is held high

21

RLINEIN

I

Right channel line input, selected when HP/LINE is held low

2

O

Sources current proportional to the junction temperature. Left floating for

normal operation.

3

LOUT+

O

Left channel + output in BTL & SE mode

10

LOUT-

O

Left channel – output in BTL mode & high-impedance in SE mode

22

ROUT+

O

Right channel + output in BTL & SE mode

15

ROUT-

O

Right channel – output in BTL mode & high impedance in SE mode