ALC892 datasheet(15/89 Pages) REALTEK

15 / 89 page

ALC892

Datasheet

7.1+2 Channel HD Audio Codec with Content Protection

Track ID: JATR-2265-11

Rev. 1.1

6. Pin Descriptions

Table 1.

Pin Descriptions

Name

Type

Pin Description

Characteristic Definition

DVDD

Digital Core Power

Digital VDD (3.3V)

GPIO0/

DMIC-CLK/

SPDIF-OUT2

IO1

General Purpose Input/Output/

Digital MIC Clock Output/

Secondary SPDIF Out to HDMI

Transmitter

Digital Input: Schmitt trigger, VIL =0.4×DVDD,

VIH =0.6×DVDD, internal 50K pull up

Digital Output: VOL <0.1×DVDD, VOH >0.9×DVDD

6mA@75

Ω Output driving

REGREF

Reference for Integrated

Regulator

10µF capacitor to digital ground

GPIO1/

DMIC-DATA

IO1

General Purpose Input/Output/

Digital MIC Stereo Channel

Input

Digital Input: Schmitt trigger, VIL =0.4×DVDD,

VIH =0.6×DVDD, internal 50K pull up

Digital Output: VOL <0.1×DVDD, VOH >0.9×DVDD

SDATA-OUT

Serial TDM Data Input

Digital Input: Schmitt trigger,

VIL =0.4×DVDD-IO, VIH =0.6×DVDD-IO

BITCLK

24MHz Clock

Digital Input: Schmitt trigger,

VIL =0.4×DVDD-IO, VIH =0.6×DVDD-IO

DVSS

Digital Ground

Digital ground

SDATA-IN

Serial TDM Data Output

Digital Input: Schmitt trigger,

VIL =0.4×DVDD-IO, VIH =0.6×DVDD-IO

Digital Output:

VOL <0.1×DVDD-IO, VOH >0.9×DVDD-IO

DVDD-IO

Digital Power for HD Link

Scalable Digital VDD (1.5V~3.3V)

SYNC

48KHz Frame SYNC Signal

Digital Input: Schmitt trigger,

VIL =0.4×DVDD-IO, VIH =0.6×DVDD-IO

RESET#

H/W Reset Input

Digital Input: Schmitt trigger,

VIL =0.4×DVDD-IO, VIH =0.6×DVDD-IO

BEEP

External PC Beep Input

Analog Input: 1.6Vrms of full-scale input

Sense A

Jack Detect for Resistor Network Connector {5.1K, 10K, 20K, 39.2K} with 1% accuracy

LINE2-L

Analog Input and Output with

Multiple Function (Left)

Analog I/O (PORT-E-L), default 2nd line input.

Recommended to be re-tasking port at front panel

LINE2-R

Analog Input and Output with

Multiple Function (Right)

Analog I/O (PORT-E-R), default 2nd line input.

Recommended to be re-tasking port at front panel

MIC2-L

Analog Input and Output with

Multiple Function (Left)

Analog I/O (PORT-F-L), default 2nd mic input.

Recommended to be re-tasking port at front panel

MIC2-R

Analog Input and Output with

Multiple Function (Right)

Analog I/O (PORT-F-R), default 2nd mic input.

Recommended to be re-tasking port at front panel

CD-L

CD Input Left Channel

Analog Input: 1.6Vrms of full-scale input

CD-GND

CD Input Reference Ground

Analog Input: 1.6Vrms of full-scale input

CD-R

CD Input Right Channel

Analog Input: 1.6Vrms of full-scale input

MIC1-L

Analog Input and Output with

Multiple Function (Left)

Analog I/O (PORT-B-L), default 1st mic input.

Recommended to be microphone input at rear panel

MIC1-R

Analog Input and Output with

Multiple Function (Right)

Analog I/O (PORT-B-R), default 1st mic input.

Recommended to be microphone input at rear panel

ALC892 Datasheet(PDF) 15 Page - Realtek Semiconductor Corp.

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