alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 3

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

1.
2.
3.
4.
5.
6.
7.
8.
2+2 Channel High Definition Audio Codec
2.1.
2.2.
4.1.
5.1.
5.2.
5.3.
5.4.
6.1.
6.2.
6.3.
6.4.
7.1.
7.2.
7.3.
7.4.
7.5.
8.1.
GENERAL DESCRIPTION ..............................................................................................................................................1
FEATURES .........................................................................................................................................................................2
SYSTEM APPLICATIONS...............................................................................................................................................4
BLOCK DIAGRAM ...........................................................................................................................................................5
PIN ASSIGNMENTS .........................................................................................................................................................6
PIN DESCRIPTIONS.........................................................................................................................................................8
HIGH DEFINITION AUDIO LINK PROTOCOL .......................................................................................................11
7.1.1.
7.1.2.
7.2.1.
7.2.2.
7.2.3.
7.2.4.
7.2.5.
7.3.1.
7.3.2.
7.3.3.
7.4.1.
7.4.2.
SUPPORTED VERBS AND PARAMETERS................................................................................................................25
8.1.1.
8.1.2.
8.1.3.
8.1.4.
8.1.5.
8.1.6.
H
S
A
ALC268/ALC268-VB (LQFP-48) ..............................................................................................................................6
G
ALC268Q (QFN-48) ...................................................................................................................................................7
G
D
A
F
P
L
F
R
V
P
V
OFTWARE
ILTER
OWER
RAME
OWER
INK
ESET AND
ARDWARE
NALOG
REEN
REEN
IGITAL
NALOG
ERB AND
ERB
Signal Definitions .................................................................................................................................................12
Signaling Topology...............................................................................................................................................13
Outbound Frame – Single SDO............................................................................................................................14
Outbound Frame – Multiple SDOs.......................................................................................................................15
Inbound Frame – Single SDI ................................................................................................................................16
Inbound Frame – Multiple SDIs...........................................................................................................................17
Variable Sample Rates .........................................................................................................................................17
Link Reset .............................................................................................................................................................20
Codec Reset ..........................................................................................................................................................21
Codec Initialization Sequence ..............................................................................................................................22
Command Verb Format........................................................................................................................................23
Response Format..................................................................................................................................................23
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)............................................................................25
Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)..........................................................................25
Parameter – Subordinate Node Count (Verb ID=F00h, Parameter ID=04h) .....................................................26
Parameter – Function Group Type (Verb ID=F00h, Parameter ID=05h) ..........................................................26
Parameter – Audio Function Capabilities (Verb ID=F00h, Parameter ID=08h) ...............................................26
Parameter – Audio Widget Capabilities (Verb ID=F00h, Parameter ID=09h) ..................................................27
S
– G
/R
IGNALS
/G
P
P
C
M
ACKAGE AND
ACKAGE AND
I/O P
I
I/O P
OMPOSITION
EFERENCE
ROUND
ET
ANAGEMENT
NPUT
R
F
I
F
NITIALIZATION
ESPONSE
P
EATURES
EATURES
ARAMETERS
INS
INS
............................................................................................................................................................11
/O
........................................................................................................................................................10
.........................................................................................................................................................8
UTPUT
........................................................................................................................................................9
/N
F
OT
..................................................................................................................................................3
................................................................................................................................................14
V
V
...............................................................................................................................................24
ORMAT
................................................................................................................................................2
ERSION
ERSION
U
C
NIT
(V
ONNECTED
.......................................................................................................................................20
ERB
.....................................................................................................................................5
..................................................................................................................................23
I
I
Table of Contents
DENTIFICATION
DENTIFICATION
ID=F00
.......................................................................................................................10
H
).............................................................................................................25
........................................................................................................6
........................................................................................................7
iii
Track ID: JATR-1076-21
ALC268 Series
Datasheet
Rev. 1.3