alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 70

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

9.2.2.
2+2 Channel High Definition Audio Codec
Parameter
BCLK Frequency
BCLK Period
BCLK Jitter
BCLK High Pulse Width
BCLK Low Pulse Width
SDO Setup Time at Both Rising and
Falling Edge of BCLK
SDO Hold Time at Both Rising and
Falling Edge of BCLK
SDI Valid Time After Rising Edge of
BCLK (1:50pF External Load)
SDI Flight Time
Link Timing Parameters at the Codec
BCLK
SDO
SDI
T_setup
V
V
Table 79. Link Timing Parameters at the Codec
V
V
V
OH
OL
IH
T
IL
T_tco
T_hold
Figure 17. Link Signals Timing
T_high
Symbol
T
T
T
T
T
T
T
T
cycle
setup
flight
jitter
high
hold
low
-
tco
T_cycle
T_low
18.75 (45%)
18.75 (45%)
Minimum
62
2.1
2.1
-
-
-
-
-
T_flight
Typical
41.67
24.0
7.5
2.0
-
-
-
-
-
Track ID: JATR-1076-21
22.91 (55%)
22.91 (55%)
Maximum
2.0
8.0
-
-
-
-
-
ALC268 Series
Datasheet
ns (%)
ns (%)
Units
MHz
ns
ns
ns
ns
ns
ns
Rev. 1.3