SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 419

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

Revision 3.0
Electrical Specifications
1.
Symbol
F
t
t
t
t
F
t
t
t
F
t
t
t
t
CLK_PD
CLK_J
CLK_H
CLK_L
SYNC_PD
SYNC_H
SYNC_L
AC97_CLK_PD
AC97_CLK_D
AC97_CLK_FR
AC97_CLK_J
AC97_CLK
BIT_CLK
SYNC
Worst case duty cycle restricted to 40/60.
Parameter
BIT_CLK frequency
BIT_CLK period
BIT_CLK output jitter
BIT_CLK high pulse width
BIT_CLK low pulse width
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
AC97_CLK Frequency
AC97_CLK Period
AC97_CLK Duty Cycle
AC97_CLK Fall/Rise time
AC97_CLK output edge-to-
edge jitter
AC97_CLK
BIT_CLK
SYNC
(Continued)
V
V
OHD
OLD
Table 8-37. AC97 Clocks Parameters
Figure 8-49. AC97 Clocks Diagram
1
1
t
AC97_CLK_FR
t
t
SYNC_H
CLK_H
32.56
32.56
t
Min
AC97_CLK_PD
45
2
t
CLK_PD
419
12.288
24.576
t
81.4
40.7
40.7
48.0
20.8
19.5
40.7
SYNC_PD
Typ
1.3
t
CLK_L
t
SYNC_L
48.84
48.84
Max
750
100
55
5
MHz
MHz
Unit
KHz
ns
ns
µs
µs
ns
ns
ns
ps
µs
ps
%
Comments
Measured from edge to edge
www.national.com