alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 16

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

6.
6.1. Digital I/O Pins
2+2 Channel High Definition Audio Codec
Name
RESET#
SYNC
BCLK
SDATA-OUT
SDATA-IN
EAPD
SPDIFO
GPIO0/
DMIC-12
GPIO3/
DMIC-34
DMIC-CLK
Total
Pin Descriptions
Type
IO
IO
O
O
O
O
I
I
I
I
-
ALC268/-VB1
(LQFP-48)
Pin No.
10 pins
11
10
47
48
46
6
5
8
2
3
ALC268Q
(QFN-48)
Pin No.
Table 1.
10 pins
11
10
47
48
46
5
6
8
2
4
Description
H/W Reset Control
Sample Sync (48kHz)
24MHz Bit Clock Input
Serial TDM Data Input
Serial TDM Data Output
S/PDIF Input /
Signal to Power Down
Ext. Amp
S/PDIF Output
General Purpose
Input/Output 0
Data input from digital
MIC 1&2
General Purpose
Input/Output 3
Data input from digital
MIC 3&4
Clock Output for Digital
MIC
-
Digital I/O Pins
8
Characteristic Definition
V
V
V
V
V
Output V
Output has 12mA@75Ω driving
capability.
Input Vt=(2/3)*DVDD, output
V
pulled up by 50KΩ
Input Vt=(2/3)*DVDD, output
V
pulled up by 50KΩ
Default 2.048MHz clock output
-
Track ID: JATR-1076-21
t
t
t
t
OH
OH
OH
=0.5*DVDD
=0.5*DVDD
=0.5*DVDD
=0.5*DVDD
=0.9*DVDD, V
=DVDD, V
=DVDD, V
OH
=DVDD, V
OL
OL
ALC268 Series
=DVSS, internal
=DVSS, internal
OL
=0.1*DVDD
OL
Datasheet
=DVSS
Rev. 1.3