alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 71

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

9.2.3.
9.2.4.
The ALC268 does not support codec test mode or Automatic Test Equipment (ATE) mode.
2+2 Channel High Definition Audio Codec
Parameter
S/PDIF-OUT Frequency
S/PDIF-OUT Period
S/PDIF-OUT Jitter
S/PDIF-OUT High Level Width
S/PDIF-OUT Low Level Width
S/PDIF-OUT Rising Time
S/PDIF-OUT Falling Time
*1: Bit parameters for 48kHz sample rate of S/PDIF-OUT.
S/PDIF Output Timing
Test Mode
V
*1
V
IH
IL
*1
*1
*1
T
rise
Table 80. S/PDIF Output Timing
Symbol
T
Figure 18. Output Timing
T
T
T
T
T
T
high
cycle
High
jitter
Low
-
rise
fall
T
T
cycle
fall
156.2 (48%)
156.2 (48%)
Minimum
63
-
-
-
-
-
T
low
162.8 (50%)
162.8 (50%)
Typical
3.072
325.6
2.0
2.0
V
-
OL
Track ID: JATR-1076-21
V
169.2 (52%)
169.2 (52%)
Maximum
OH
4
-
-
-
-
V
t
ALC268 Series
Datasheet
ns (%)
ns (%)
Units
MHz
ns
ns
ns
ns
Rev. 1.3