BU2285FV Datasheet, PDF (1/7 Pages) Rohm – Clock generator IC

Multimedia ICs
Clock generator IC
BU2285FV
BU2285FV
BU2285FV is an IC which produces plural clocks required for a DVD system from an external crystal oscillator and a
built-in 2-channel PLL. Seven kinds of signals such as 54MHz, 27MHz and 13.5 MHz for a video clock, 33.8688MHz and
16.9342MHz for a CD clock, 33.864MHz and 18.432MHz for a DVD clock can be outputted with low jitter and high S/N.
zApplications
DVD System
zFeatures
1) Available with seven output clock signals
2) All output low jitter (No load 30ps)
High S/N (More than 50dB)
3) No need for additional components
(BU2285FV has a PLL loop filter inside)
4) 3.3V signal power supply
zExternal dimensions (Unit : mm)
7.8 ± 0.2
24
13
1
12 _{0.15 ± 0.1}
0.65
0.22 ± 0.1
0.1
SSOP-B24
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Applied voltage
VDD
−0.5 to +7.0
V
Input voltage
VIN
−0.5 to VDD+0.5
V
Storage temperature range
Tstg
−30 to +125
°C
Power dissipation
Pd
630
∗An operation is not guaranteed.
∗ In case it is used at Ta=25°C or more, 6.3mW is reduced at every 1°C.
∗Radiation resistance design is not used.
∗Power dissipation is measured when BU2285FV is placed on the board.
mW
zRecommended operating conditions (Ta=25°C)
Parameter
Symbol Min. Typ. Max.
Unit
Supply voltage
VDD
3.0
−
3.6
V
Input "H" voltage range
VIH
0.8VDD
−
VDD
V
Input "L" voltage range
VIL
0
−
0.2VDD
V
Operating temperature range
Topr
−5
−
70
°C
Output load
CL
−
−
15
pF
1/6