ALC202 데이터 시트보기 (PDF) - Realtek Semiconductor

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ALC202

TWO CHANNEL AC97 AUDIO CODEC

Realtek Semiconductor 

ALC202/ALC202A

5.2 Analog I/O Pins

Name

PC-BEEP

PHONE

AUX-L

AUX-R

VIDEO-L

VIDEO-R

CD-L

CD-GND

CD-R

MIC1

MIC2

LINE-L

LINE-R

LINE-OUT-L

Type

I

I

I

I

I

I

I

I

I

I

I

I

I

O

Pin No

12

13

14

15

16

17

18

19

20

21

22

23

24

35

Description

PC speaker input

Speakerphone input

AUX Left channel

AUX Right channel

Video audio Left channel

Video audio Right channel

CD audio Left channel

CD audio analog GND

CD audio Right channel

First MIC input

Second MIC input

Line input Left channel

Line input Right channel

Line-Out Left channel

LINE-OUT-R O 36 Line-Out Right channel

HP-OUT-L O

HP-OUT-R O

MONO-OUT O

39 ALC202:

Headphone Out – Left

ALC202A:

True-LINE-Out – Left

41 ALC202:

Headphone Out – Left

ALC202A:

True-LINE-Out – Left

37 Speaker Phone output

Characteristic Definition

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

Analog input (1Vrms)

ALC202: Analog output without op-amp (1.0Vrms)

ALC202A: Analog output with op-amp (1.0Vrms)

ALC202: Analog output without op-amp (1.0Vrms)

ALC202A: Analog output with op-amp (1.0Vrms)

ALC202: Analog output with op-amp

ALC202A: Analog output without op-amp

ALC202: Analog output with op-amp

ALC202A: Analog output without op-amp

Analog output (1Vrms)

Total: 18 Pins

5.3 Filter/Reference

Name

VREF

VREFOUT

AFILT1

AFILT2

VRAD

VRDA

DC VOL

VAUX

Type

-

O

-

-

-

-

I

I

Pin No

27

28

29

30

31

32

33

34

Description

Reference voltage

Ref. voltage out with 8mA

drive

ADC anti-aliasing filter

capacitor

ADC anti-aliasing filter

capacitor

ADC reference voltage

capacitor

DAC reference voltage

capacitor

DC Voltage Volume

Control

Auxiliary Power to keep CD

and amplifier turned on.

Characteristic Definition

1uf capacitor to analog ground

Analog output (2.25V – 2.75V)

1000pf capacitor to analog ground.

1000pf capacitor to analog ground.

1uf capacitor to analog ground

1uf capacitor to analog ground

Analog Input (AGND~AVDD)

+5V analog stand-by power

Total: 8 Pins

2002/07/30

7

Rev.1.28

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