ALC888S データシートの表示（PDF） - Realtek Semiconductor

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ALC888S

7.1+2 CHANNEL HIGH DEFINITION AUDIO CODEC WITH TWO INDEPENDENT S/PDIF-OUT

Realtek Semiconductor 

6. Pin Descriptions

ALC888S & ALC888SDD

Datasheet

6.1. Digital I/O Pins

Name

RESET#

SYNC

BITCLK

SDATA-OUT

SDATA-IN

SPDIFI /

EAPD

SPDIFO

GPIO0 /

DMIC-CLK /

SPDIFO2

GPIO1 /

DMIC-DATA

Type

I

I

I

I

O

IO

O

IO

IO

Table 1. Digital I/O Pins

Pin Description

Characteristic Definition

11 H/W Reset

10 Sample Sync (48kHz)

6 24MHz Bit Clock Input

5 Serial TDM Data Input

8 Serial TDM Data Output

Vt=0.5*DVDD

Vt=0.5*DVDD

Vt=0.5*DVDD

Vt=0.5*DVDDIO

Vt=0.5*DVDDIO, VOH=DVDDIO, VOL=DVSS

47 S/PDIF Input /

Signal to power down ext. amp

48 S/PDIF Output

VIL=1.45V, VIH=1.85V /

VOH=DVDD, VOL=DVSS

Output has 12mA@75Ω driving capability

VOH=DVDD, VOL=DVSS

2 General Purpose Input/Output 0 Input: Vt=(2/3)*DVDD

Clock output to digital MIC

Output: VOH=DVDD, VOL=DVSS

Secondary S/PDIF output

Output: VOH=DVDD, VOL=DVSS

3 General Purpose Input/Output 1 Input: Vt=(2/3)*DVDD

Serial data from digital MIC

Output: VOH=DVDD, VOL=DVSS

Total: 9 Pins

6.2. Analog I/O Pins

Name

LINE2-L

LINE2-R

MIC2-L

MIC2-R

CD-L

CD-GND

CD-R

MIC1-L

MIC1-R

LINE1-L

LINE1-R

PCBEEP

FRONT-L

Type

IO

IO

IO

IO

I

I

I

IO

IO

IO

IO

I

IO

Table 2. Analog I/O Pins

Pin Description

Characteristic Definition

14 2nd Line Input Left Channel

Analog input/output, default is input (JACK-E)

15 2nd Line Input Right Channel

Analog input/output, default is input (JACK –E)

16 2nd Stereo Microphone Input Left Analog input/output, default is input (JACK –F)

Channel

17 2nd Stereo Microphone Input

Analog input/output, default is input (JACK –F)

Right Channel

18 CD Input Left Channel

Analog input, 1.6Vrms of full scale input

19 CD Input Reference Ground

Analog input, 1.6Vrms of full scale input

20 CD Input Right Channel

Analog input, 1.6Vrms of full scale input

21 1st Stereo Microphone Input Left Analog input/output, default is input (JACK –B)

Channel

22 1st Stereo Microphone Input

Analog input/output, default is input (JACK –B)

Right Channel

23 1st Line Input Left Channel

Analog input/output, default is input (JACK –C)

24 1st Line Input Right Channel

Analog input/output, default is input (JACK –C)

12 External PCBEEP Input

Analog input, 1.6Vrms of full scale input

35 Front Output Left Channel

Analog output (JACK –D)

7.1+2 Channel High Definition Audio Codec

9

w/Two Independent S/PDIF-OUT

Track ID: JATR-1076-21 Rev. 1.2

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