BU2279F Rohm, BU2279F Datasheet
BU2279F
Manufacturer Part Number
BU2279F
Description
Manufacturer
Rohm
Datasheet
1.BU2279F.pdf
(2 pages)
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Part Number:
BU2279F
Manufacturer:
SAMSUNG
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1 531
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.
DVD recorder, PC
1) Clock signals are generated by crystal oscillator.
2) SOP16 package.
3) Single power supply 3.3V.
4) No external components for PLL
Power supply voltage
Voltage range of "H" input
Voltage range of "L" input
Operation temperature range
Maximum output load
Impressed voltage
Input voltage
Storage temperature range
Power dissipation
Applications
Features
Absolute maximum rating•i Ta=25GC• j
Recommended operational conditions•i Ta=25GC• j
Ratio above does not guarantee the operation.
When the condition is over Ta=25 C, dissipatioin is decreased 5mWper 1 C.
Radiation resistance design is not used.
Power dissipation is.
Parameter
Parameter
Symbol
Tstg
V
V
Pd
Symbol
DD
IN
Topr
V
V
V
CL
DD
IH
IL
0.8V
Min.
3.0
0
–
5
DD
0.5 ~ V
0.5 ~ 7.0
30 ~ 125
Limits
500
Typ.
DD
–
–
–
–
–
0.5
0.2V
Max.
V
3.6
70
15
DD
DD
Unit
mW
V
V
C
Unit
pF
V
V
V
C
External dimensions (Units : mm)
1.27
SOP16
16
1
10.0±0.2
0.4±0.1
9
8
0.1
BU2279F
0.15±0.1
1/2
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BU2279F Summary of contents
Page 1
... Clock generator for PC BU2279F BU2279F 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. ...
Page 2
... Measured at 1/ Measured at 1/2V 80 psec Jitter 1 400 psec Jitter MIN MAX 2.5 nsec 2.5 nsec 1 msec CTRL3 14 TEST2 13 AVDD 12 DVDD 33.3MHz output 11 SCLK 10 DVDD 54MHz output 9 VCLK BU2279F 0.1µF 0.1µF 0.1µF BU2279F Conditions 4.0mA DD DD Fixed to "L" 2/2 ...