BU2279F
Multimedia ICs
Clock generator for PC
BU2279F
BU2279F is an IC that generates multiple clocks from the built-in PLL by inputting standard clocks from outside. This IC is
suitable for digital appliances.
54 MHz for video and 33.333MHz of digital system clock for CPU can be generated from widely used 13.5 MHz clock.
Applications
DVD recorder, PC
External dimensions
(Units : mm)
10.0鹵0.2
16
9
6.2鹵0.3
Features
1) Clock signals are generated by crystal oscillator.
2) SOP16 package.
3) Single power supply 3.3V.
4) No external components for PLL
4.4鹵0.2
1
8
1.5鹵0.1
0.15鹵0.1
0.1
0.11
1.27
0.4鹵0.1
SOP16
Absolute maximum rating錛圱a=25擄C錛?/div>
Parameter
Impressed voltage
Input voltage
Storage temperature range
Power dissipation
Symbol
V
DD
V
IN
Pd
Tstg
Limits
鈭?.5
~ 7.0
鈭?.5
~ V
DD
+0.5
500
鈭?/div>
鈭?0
~ 125
Unit
V
V
mW
擄C
鈭?/div>
Ratio above does not guarantee the operation.
鈭?/div>
When the condition is over Ta=25 C, dissipatioin is decreased 5mWper 1 C.
鈭?/div>
Radiation resistance design is not used.
鈭?/div>
Power dissipation is.
Recommended operational conditions錛圱a=25擄C錛?/div>
Parameter
Power supply voltage
Voltage range of "H" input
Voltage range of "L" input
Operation temperature range
Maximum output load
Symbol
V
DD
V
IH
V
IL
Topr
CL
Min.
3.0
0.8V
DD
0
鈭?
鈥?/div>
Typ.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Max.
3.6
V
DD
0.2V
DD
70
15
Unit
V
V
V
擄C
pF
0.3Min.
1/2
1
2
