NJU6368 Series
PRELIMINARY
High Drive Fundamental Quartz Crystal Oscillator
sGENERAL
DESCRIPTION
The NJU6368 series is a C-MOS fundamental quartz crystal
oscillator that consists of an oscillation amplifier, 3-stage
divider and 3-state output buffer.
The 3-stage divider generates only one frequency selected
of f
0
,f
0
/2,f
0
/4 and f
0
/8 by internal circuits is output.
The oscillation amplifier is realized very low stand-by
current using NAND circuit.
The 3-state output buffer is C-MOS compatible and can
drive 50pF(@5V) C-MOS load.
Furthermore, the package is small-sized MTP-6.
sFEATURES
qOperating
Voltage
2.7 to 5.5V
qMaximum
Oscillation Frequency 50MHz
qLow
Operating Current
qHigh
Fan-out
I
OH
/I
OL
=8mA@3.3V
I
OH
/I
OL
=16mA@5.0V
q3-Stage
Divider
Maximum Divider f
0
/8
qOscillation
Stop and Output Stand-by Function
q3-State
Output Buffer
qOscillation
Capacitors Cg and Cg on-chip
qPackage
Outline
Thin-Chip/MTP-6
qC-MOS
Technology
sPACKAGE
OUTLINE
NJU6368XC-C
NJU6368XF1
sPAD
LOCATION
Thin-Chip
F
OUT
V
SS
XT
MTP-6
F
OUT
V
DD
XT
1
2
3
6
5
4
XT
V
DD
CONT
V
SS
XT
CONT
sLINE-UP
TABLE
Type No.
A
B
C
D
P
F
OUT
f
0
f
0
/2
f
0
/4
f
0
/8
f
0
Internal Connect
Connected A Line
Connected B Line
Connected C Line
Connected D Line
Connected A Line
Cg/Cd
15/15pF
15/15pF
15/15pF
15/15pF
Non
sCOORDINATES
No
1
2
3
4
5
8
Pad Name
F
OUT
V
SS
XT
CONT
NJU6368
X
-207
-207
33
207
207
207
Y
247
-247
-247
-247
-17
172
V
DD
XT
Starting Point:Chip Center
Unit[um]
Chip Size:0.67x0.75mm
Thin-Chip Thickness:260±20um
Pad Size:90x90um
sBLOCK
DIAGRAM
XT
V
DD
Rf
V
SS
XT
1/ 2
Cg
1/ 2
1/ 2
Cd
3
−
STATE
BUFFER
F
OUT
A
B
C
D
CONT
2002/12/18 ( 1 / 5 )
NJU6368 Series
sTREMINAL
DESCRIPTION
SYMBOL
FUNCTION
Oscillation and 3-state Output Buffer Control
F
OUT
CONT
Output either one frequency selected of f
0
,
H or OPEN
Note1)
f
0
/2,f
0
/4 and f
0
/8
L
Oscillation Stop and High impedance Output
CONT
Quartz Crystal Connecting Terminals
XT
V
SS
V
SS
=0V
F
OUT
Frequency Output
V
DD
V
DD
=3.3V/5.0V
Note1) Refer to the line-up table.
sABSOLUTE
MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
RATING
UNIT
Supply Voltage
V
DD
-0.5 to +7.0
V
Input Voltage
V
IN
V
SS
-0.5 to V
DD
+0.5
V
Output Voltage
V
O
-0.5 to V
DD
+0.5
V
Input Current
I
IN
mA
±10
Output Current
I
O
mA
±25
Power Dissipation
Note 4)
P
D
200(MTP-6)
mW
Operating Temperature Range
Topr
-40 to +85
°C
Storage Temperature Range
Tstg
-55 to +125
°C
Note2) If the supply voltage(V
DD
) is less than 7.0V, the input voltage must not over the V
DD
level though 7.0V is
limit specified.
Note3) Decupling capacitor should be connected between V
DD
and V
SS
due to the stabilized operation for the
circuit.
Note4) Power Dissipation is the maximum value of a package simple substance.
XT
2002/12/18 ( 2 / 5 )
NJU6368 Series
sELECTRICAL
CHARACTERISTICS
PARAMETER
Operating Voltage
SYMBOL
V
DD
CONDITIONS
MIN
2.7
TYP
(Ta=25°C)
MAX
UNIT
5.5
V
PARAMETER
SYMBOL
Operating Current
I
DD
CONDITIONS
A version,fosc=16MHz,C
L
=30pF
B version,fosc=16MHz,C
L
=30pF
C version,fosc=16MHz,C
L
=30pF
D version,fosc=16MHz,C
L
=30pF
P version,fosc=16MHz,C
L
=30pF
Note5)
CONT
=V
SS
, No load
CONT
=XT=V
SS
, No load Note6)
MIN
(V
DD
=3.3V,Ta=25°C)
TYP
MAX
UNIT
8
6
4
mA
3
8
2
5
1
3.3
0.99
uA
uA
V
V
mA
mA
uA
uA
uA
KΩ
pF
MHz
55
55
4
8
4
8
150
150
%
ns
ns
ns
ns
Oscillation Stopping
Current
Stand-by Current
Input Voltage
Output Current
Input Current
3-state Off Leakage
Current
Feedback Resistance
Internal Capacitor
I
STB
Ist
V
IH
V
IL
I
OH
I
OL
I
IN
I
OZ
Rf
Cg/Cd
V
OH
=2.97V
V
OL
=0.33V
CONT
=0.8V
DD
CONT
=0.2V
DD
CONT
=V
SS
, F
OUT
= V
DD
or V
SS
2.31
0
8
8
10.0
1.8
15.0
3.0
±0.1
fosc=16MHz, A/B/C/D version
P version
255
15/15
-
Maximum Oscillation
50
F
MAX
Frequency
Output Signal
C
L
=15pF, @V
DD
/2
45
50
SYM
Symmetry
45
50
C
L
=30pF, @V
DD
/2
Output Signal Rise
C
L
=15pF,10% to 90%
2
tr
Time
4
C
L
=30pF,10% to 90%
Output Signal Fall
C
L
=15pF,90% to 10%
2
tf
Time
4
C
L
=30pF,90% to 10%
T
PLZ
Output Disable time
C
L
=15pF,R
UP
=10kΩ
T
PZL
Output Enable Time
C
L
=15pF,R
UP
=10kΩ
Note5) P version is measured with external capacitors contained 13pF for Cg and 13pF for Cd.
Note6)
Excluding input current on
CONT
Terminal.
2002/12/18 ( 3 / 5 )
NJU6368 Series
PARAMETER
SYMBOL
CONDITIONS
A version,fosc=16MHz,C
L
=50pF
B version,fosc=16MHz,C
L
=50pF
C version,fosc=16MHz,C
L
=50pF
D version,fosc=16MHz,C
L
=50pF
P version,fosc=16MHz,C
L
=50pF
Note5)
CONT
=V
SS
, No load
CONT
=XT=V
SS
, No load Note6)
MIN
Operating Current
I
DD
(V
DD
=5.0V,Ta=25°C)
TYP
MAX
UNIT
15
11
9
mA
7
15
5
10
1
5.0
1.5
uA
uA
V
V
mA
mA
uA
uA
uA
KΩ
pF
MHz
55
55
4
8
4
8
100
100
%
ns
ns
ns
ns
Oscillation Stopping
Current
Stand-by Current
Input Voltage
Output Current
Input Current
3-state Off Leakage
Current
Feedback Resistance
Internal Capacitor
I
STB
Ist
V
IH
V
IL
I
OH
I
OL
I
IN
I
OZ
Rf
Cg/Cd
V
OH
=4.5V
V
OL
=0.5V
CONT
=0.8V
DD
CONT
=0.2V
DD
CONT
=V
SS
, F
OUT
= V
DD
or V
SS
3.5
0
16
16
27.0
5.5
40.0
8.0
±0.1
fosc=16MHz, A/B/C/D version
P version
255
15/15
-
Maximum Oscillation
50
F
MAX
Frequency
Output Signal
C
L
=15pF, @V
DD
/2
45
50
SYM
Symmetry
45
50
C
L
=50pF, @V
DD
/2
Output Signal Rise
C
L
=15pF,10% to 90%
2
tr
Time
4
C
L
=50pF,10% to 90%
Output Signal Fall
C
L
=15pF,90% to 10%
2
tf
Time
4
C
L
=50pF,90% to 10%
T
PLZ
Output Disable time
C
L
=15pF,R
UP
=10kΩ
T
PZL
Output Enable Time
C
L
=15pF,R
UP
=10kΩ
Note5) P version is measured with external capacitors contained 13pF for Cg and 13pF for Cd.
Note6)
Excluding input current on
CONT
Terminal.
2002/12/18 ( 4 / 5 )
NJU6368 Series
sMEASURMENT
CIRCUITS
(1)Output Signal Symmetry(C
L
=15/30/50pF)
1000pF
Pulse
Generator
50Ω
XT
V
DD
F
OUT
C
L
V
SS
1/2V
DD
H
L
(2)Output Signal Rise/Fall Time(C
L
=15/30/50pF)
1000pF
Pulse
Generator
50Ω
XT
V
DD
F
OUT
C
L
V
SS
tr
tf
90%
50%
10%
(3)Output Disable/Enable Time(C
L
=15pF,R
UP
=10kΩ)
V
DD
XT
Pulse
Generator
50Ω
CONT
V
SS
F
OUT
R
UP
=10kΩ
CONT
0.2V
DD
T
PLZ
0.8V
DD
T
PZL
V
OL
V
OH
C
L
=15pF
F
OUT
[CAUTION]
The specifications on this data book are only
given for information , without any guarantee
as regards either mistakes or omissions.
The application circuits in this data book are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
2002/12/18 ( 5 / 5 )
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
