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ALC892

7.1+2 CHANNEL HD AUDIO CODEC WITH CONTENT PROTECTION

Realtek Semiconductor 

ALC892

Datasheet

Name

LINE1-L

LINE1-R

Type

IO

IO

Pin Description

23 Analog Input and Output with

Multiple Function (Left)

24 Analog Input and Output with

Multiple Function (Right)

Characteristic Definition

Analog I/O (PORT-C-L), default 1st line input.

Recommended to be line level input at rear panel

Analog I/O (PORT-C-R), default 1st line input.

Recommended to be line level input at rear panel

LDO-OUT1

- 25 Built-In LDO Output for Mixer Needs 10µF capacitor to analog ground, and short to

& Amp

Pin38

AVSS1

G 26 Analog Ground for Mixer &

Amp

Analog GND

VREF

- 27 0.5×LDO-OUT1 Reference

Voltage

10µf capacitor to analog ground

MIC1-

VREFO-L

O 28 Bias Voltage for MIC1 (Port-B) Analog Output: 2.5V/3.2V/4.0V reference voltage

LDO-IN

P 29 Built-In LDO Input

VDD (5V)

MIC2-

VREFO

O 30 Bias Voltage for MIC2 (Port-F) Analog Output: 2.5V/3.2V/4.0V reference voltage

LINE2-

VREFO

O 31 Bias Voltage for LINE2 (Port-E) Analog Output: 2.5V/3.2V/4.0V reference voltage

MIC1-

VREFO-R

O 32 Secondary Bias Voltage for

MIC1 (Port-B)

Analog Output: 2.5V/3.2V/4.0V reference voltage

Sense C

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

Sense B

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

FRONT-L

IO 35 Analog Input and Output (Left) Analog I/O (PORT-D-L), default front channel output.

FRONT-R

IO 36 Analog Input and Output (Right) Analog I/O (PORT-D-R), default front channel output.

PIN37-

VREFO

O 37 Bias Voltage

Analog Output: 2.5V/3.2V/4.0V reference voltage

LDO-OUT2

- 38 Analog Power for DAC and

ADC

Needs 10µF capacitor to analog ground, and short to

Pin25

SURR-L

IO 39 Analog Input and Output (Left) Analog I/O (PORT-A-L), default surround channel.

JDREF

- 40 Reference for Jack Detect

20K, 1% resistor to AGND

SURR-R

IO 41 Analog Input and Output (Right) Analog I/O (PORT-A-R), default surround channel.

AVSS2

G 42 Analog Ground for DAC & ADC Analog GND

CENTER

IO 43 Analog Input and Output (Left) Analog I/O (PORT-G-L), default center channel.

LFE

IO 44 Analog Input and Output (Right) Analog I/O (PORT-G-R), default LFE channel.

SIDE-L

IO 45 Analog Input and Output (Left) Analog I/O (PORT-H-L), default side channel.

SIDE-R

IO 46 Analog Input and Output (Right) Analog I/O (PORT-H-R), default side channel.

SPDIF-IN/

IO 47 SPDIF Input/

Digital Input: Schmitt trigger (5V tolerance),

EAPD

External Amplifier Power Down VIL =0.44×DVDD, VIH =0.56×DVDD

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

SPDIF-OUT O 48 Primary SPDIF Out

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

10mA@75Ω Output driving

Total: 48 Pins

Note1: Pins 2 and 4 have multiple functions. Their default operation is as GPIOs. They function as digital MIC pins when

the configuration register of the digital MIC pin widget (node ID12h) is enabled, and exclusively function as secondary

SPDIF-OUT when the configuration register of the SPDIF-OUT2 pin widget (node ID 11h) is enabled.

7.1+2 Channel HD Audio Codec with Content Protection 9

Track ID: JATR-2265-11 Rev. 1.3

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