YMF744B
February 3, 1999
-55-
4-4. AC’97 Master Clock (Fig.5)
Item
Symbol
Min.
Typ.
Max.
Unit
CMCLK Cycle Time
t
CMCYC
-
40.69
-
ns
CMCLK High Time
t
CMHIGH
8
-
-
ns
CMCLK Low Time
t
CMLOW
8
-
ns
CMCLK Rising Time
t
CMR
-
4.6
-
ns
CMCLK Falling Time
t
CMF
-
2.1
-
ns
Note : Top = 0-70°C, PVDD=3.3
±
0.3 V, VDD=3.3
±
0.3 V, CVDD=3.3
±
0.3 V, LVDD=3.3
±
0.3 V, C
L
=50 pF
t
CMCLK
CMCYC
t
CMF
t
CMR
t
CMHIGH
0.2 V
DD3
0.5 V
DD3
0.8 V
DD3
t
CMLOW
Fig.5: Master Clock timing for AC’97