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BU239XK-E2N Arkusz danych(PDF) 2 Page - Rohm

Numer części BU239XK-E2N
Szczegółowy opis  3ch Clock Generator for Digital Cameras
Download  17 Pages
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Producent  ROHM [Rohm]
Strona internetowa  http://www.rohm.com
Logo ROHM - Rohm

BU239XK-E2N Arkusz danych(HTML) 2 Page - Rohm

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●Recommended Operating Range
Parameter
Symbol
Limit
Unit
Supply voltage
VDD
3.0~3.6
Input H voltage
VINH
0.8VDD~VDD
Input L voltage
VINL
0.0~0.2VDD
Operating temperature
Topr
-5~70
Output load
CL
15(MAX)
pF
Electrical characteristics
BU2394KN(VDD=3.3V, Ta=25℃, unless otherwise specified.)
XTAL_SEL=H with crystal oscillator at a frequency of 28.636363 MHz, while XTAL_SEL=L at 14.318182 MHz
Parameter
Symbol
Limit
Unit
Condition
Min.
Typ.
Max.
【Action circuit current】
IDD
45
60
mA
At no load
【Output H voltage】
CLK1
VOH1
VDD-0.5
VDD-0.2
V
When current load = - 9.0mA
CLK2
VOH2
VDD-0.5
VDD-0.2
V
When current load = - 7.0mA
REF_CLK
VOHR
VDD-0.5
VDD-0.2
V
When current load = - 4.5mA
【Output L voltage】
CLK1
VOL1
0.2
0.5
V
When current load =11mA
CLK2
VOL2
0.2
0.5
V
When current load =9.0mA
REF_CLK
VOLR
0.2
0.5
V
When current load =5.5mA
【Pull-Up resistance value】
FS1, FS2, FS3,
CLK2ON, XTAL_SEL
Pull-Up
R
125
250
375
Ω
Specified
by
a
current
value
running when a voltage of 0V is
applied to a measuring pin.
(R=VDD/I)
【Output frequency】
CLK1 FS2:H FS3:H
Fclk1-1
135.000000
MHz
XTAL×(1188/63)/2
CLK1 FS2:H FS3:L
Fclk1-2
108.000000
MHz
XTAL×(1056/70)/2
CLK1 FS2:L FS3:L
Fclk1-3
98.181818
MHz
XTAL×(864/63)/2
CLK1 FS2:L FS3:H
Fclk1-4
110.000000
MHz
XTAL×(968/63)/2
CLK2
Fclk2-2
48.008022
MHz
XTAL×(228/17)/4
REF_CLK FS1:H
Fref1-1
14.318182
MHz
XTAL Output
REF_CLK FS1:L
Fref1-2
17.734450
MHz
XTAL×(706/57)/10
【Output waveform】
Duty1
100MHz or less
Duty1
45
50
55
Measured at a voltage of 1/2 of
VDD
Duty2
100MHz or more
Duty2
50
Measured at a voltage of 1/2 of
VDD
Rise time
Tr
2.5
nsec
Period of transition time required
for the output to reach 80% from
20% of VDD.
Fall time
Tf
2.5
nsec
Period of transition time required
for the output to reach 20% from
80% of VDD.
【Jitter】
Period-Jitter 1σ
P-J1σ
30
psec
※1
Period-Jitter MIN-MAX
P-J
MIN-MAX
180
psec
※2
【Output Lock-Time】
Tlock
1
msec
※3
Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the
input frequency is set to values shown below, the output frequency will be as listed above.
When XTAL_SEL is set to H, the input frequency on XTALIN will be 28.636363 MHz.
When XTAL_SEL is set to L, the input frequency on XTALIN will be 14.318182 MHz.


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