alc658 Realtek Semiconductor Corporation, alc658 Datasheet - Page 38

• Manufacturer Part Number: alc658
• Description: Six-channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

7.2.2.
7.2.3.
Note: Worse case duty cycle restricted to 45/55.
Six-Channel AC’97 2.3 Audio Codec
Parameter
Parameter
SYNC active high pulse width
SYNC inactive to BIT_CLK
Startup delay
BIT_CLK frequency
BIT_CLK period
BIT_CLK output jitter
BIT_CLK high pulse width (note 2)
BIT_CLK low pulse width (note 2)
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
Warm Reset
AC-Link Clocks
BITCLK
SYNC
T
Symbol
Figure 5. Warm Reset Timing Diagram
T
sync_high
sync2clk
T
T
T
Symbol
T
T
T
sync_period
clk_period
sync_high
sync_low
clk_high
clk_low
Table 56. AC-Link Clocks
Table 55. Warm Reset
Tsync_high Tsync2clk
Minimum
162.8
Minimum
1.0
34
36
36
-
-
-
-
-
-
-
Typical
Typical
12.288
-
-
81.4
40.7
40.7
48.0
20.8
19.5
1.3
-
Maximum
Maximum
750
-
-
45
45
-
-
-
-
-
-
Datasheet
ALC658
Units
Units
MHz
KHz
µs
ns
ns
ps
ns
ns
µs
µs
µs
Rev. 1.3