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PDF BU2288FV Data sheet ( Hoja de datos )
| Número de pieza | BU2288FV | |
| Descripción | Clock generator IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BU2288FV (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Multimedia ICs
Clock generator IC
BU2288FV
BU2288FV
The BU2288FV is an IC that generates plural clocks required for DVD system from a 2-channel PLL external crystal
oscillator. The six kinds of signals for video and audio system are generated with low jitter.
zApplication
All DVD sets
zFeatures
1) All clock signals needed for DVD can be
generated by a single chip.
2) All output low jitter (No load 30psec)
3) No need for additional components.
(BU2288FV has a PLL loop filter inside.)
4) 3.3V single power supply
5) Small SSOP-B16 package.
zExternal dimensions (Unit : mm)
5.0±0.2
16 9
18
0.15±0.1
0.65 0.1
0.22±0.1
SSOP-B16
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Applied voltage
VDD −0.5 to +7.0
Input voltage
VIN −0.5 to VDD+0.5
Storage temperature range
Tstg
−30 to +125
Power dissipation
Pd
450
∗ An operation is not guaranteed.
∗ In case it is used at Ta=25°C or more, 4.5mW is reduced at every1°C.
∗ Radiation resistance design is not used.
∗ Power dissipation is measured when BU2288FV is placed on the board.
Unit
V
V
°C
mW
zRecommended operating conditions (Ta=25°C)
Parameter
Symbol Min. Typ. Max.
Supply voltage
VDD 3.0 − 3.6
Input "H" voltage range
VIH 0.8VDD −
VDD
Input "L" voltage range
VIL 0 − 0.2VDD
Operation temperature range
Topr
−5
−
70
Output maximum load
CL − − 15
Unit
V
V
V
°C
pF
1/6
1 page  
Multimedia ICs
BU2288FV
zElectrical characteristics (Unless specified otherwise Ta=25°C, VDD=3.3V, crystal frequency=27MHz)
Parameter
Symbol
Min. Typ. Max.
Output "H" voltage
VOH
2.4 −
−
Output "L" voltage
VOL − − 0.4
FSEL Input VthL ∗3
VthL
0.2VDD
−
−
FSEL Input VthH ∗3
VthH
− − 0.8VDD
Hysteresis width ∗3
Vhys
0.2 −
−
Power supply current
CLK512FS
IDD
CLK512-A
CLK512-B
− 27 40.5
− 22.5792 −
− 24.576 −
CLK33M
CLK33M
− 33.8688 −
CLK16M
CLK16M
− 16.9344 −
CLK27M
CLK27M − 27 −
CLK A
CLKA-A
CLKA-B
− 16.9344 −
− 36.864 −
Duty
Duty
45 50 55
Jitter 1σ
Jitter MIN-MAX
JsSD
JsABS
− 70 −
− 420 −
Rise time
tr − 2.5 −
Fall time
tf − 2.5 −
Output Lock time
tlock
−−1
Note : JITTER is mean value when using Time Interval Analyzer with 10,000 sampling
∗1) graph
0.2VDD
Vhys
0.8VDD
Unit
V
V
V
V
V
mA
MHz
MHz
MHz
MHz
MHz
MHz
MHz
%
psec
psec
nsec
nsec
msec
Conditions
IOH=−4.0mA
IOL=4.0mA
∗1
∗1
Vhys=VthH−VthL
no load
FSEL1=OPEN, XTAL ∗3136/625/6
FSEL1=L, XTAL ∗2048/375/6
XTAL ∗3136/625/4
XTAL ∗3136/625/8
XTAL output
FSEL1=OPEN, XTAL ∗3136/625/8
FSEL1=L, XTAL ∗2048/375/4
1/2 VDD test
Jitter 1sigma
MIN-MAX level
Time between 0.2VDD~0.8VDD
Time between 0.8VDD~0.2VDD
∗2
VyhL 1/2VDD VyhH Input (V)
∗2) Time between voltage supply leads to 3.0V and output clock gats stable.
Start up time of power supply sources satisfy this rated value at every time, case
5/6
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet BU2288FV.PDF ] | |
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