NJU6397 Series
PRELIMINARY
3rd. Over Tone Quartz Crystal Oscillator for 135MHz
sGENERAL
DESCRIPTION
The NJU6397 series that is a C-MOS IC for quartz
crystal oscillator consists of an oscillation amplifier and
3-state output buffer.
This series has three types of A, B and C. The
frequency range of the A type is from 75 to 90MHz, and
the B type is from 90 to 110MHz, and the C type is from
110 to 135MHz.
The oscillation amplifier realizes very low oscillation
stop current with NAND circuit.
The 3-state output buffer is C-MOS compatible.
sPACKAGE
OUTLINE
NJU6397XC-D
2.3 to 3.6V
(See Line-up Table)
I
OH
/I
OL
= 6mA @V
DD
=2.5V
I
OH
/I
OL
= 8mA @V
DD
=3.3V
qOscillation
Stop and Output Stand-by Function
q3-State
Output Buffer
qOscillation
Capacitors Cg and Cg on-chip
qPackage
Outline
Thin-Chip
qC-MOS
Technology
s
FEATURES
qOperating
Voltage
qMaximum
Oscillation Frequency
qHigh
Fan-out
sPAD
LOCATION
Thin-Chip
CONT
XT
XT
V
SS
V
DD
F
OUT
sLINE-UP
TABLE
Type No.
A
B
C
Recommended
Oscillation
Frequency
75 to 90MHz
90 to 110MHz
110 to 135MHz
Output
Frequency
f
0
Cg/Cd
11/12pF
9/10pF
8/9pF
sCOORDINATES
No
1
2
3
4
5
8
Pad Name
CONT
XT
XT
V
SS
F
OUT
V
DD
X
-178
-178
-178
-178
206
206
Y
231
77
-77
-231
-231
231
NJU6397
Starting Point:Chip Center
Unit[um]
Chip Size:0.7x0.75mm
Thin-Chip Thickness:200±20um
Pad Size:90x90um
sBLOCK
DIAGRAM
XT
V
DD
V
SS
Rf
XT
Cg
Cd
3
−
STATE
BUFFER
F
OUT
CONT
2002/07/15 ( 1 / 5 )
NJU6397 Series
sTREMINAL
DESCRIPTION
SYMBOL
FUNCTION
Oscillation and 3-state Output Buffer Control
F
OUT
CONT
CONT
H or OPEN Output frequency f
0
L
Oscillation Stop and High impedance Output
XT
Quartz Crystal Connecting Terminals
V
SS
=0V
Frequency Output
V
DD
=2.5V/3.3V
XT
V
SS
F
OUT
V
DD
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
Operating Temperature Range
Topr
-40 to +85
°C
Storage Temperature Range
Tstg
-55 to +125
°C
Note1) If the supply voltage(V
DD
) is less than 7.0V, the input voltage do not over the V
DD
level.
Note2) Decupling capacitor should be connected between V
DD
and V
SS
due to the stabilized operation for the
circuit.
2002/07/15 ( 2 / 5 )
NJU6397 Series
sELECTRICAL
CHARACTERISTICS
PARAMETER
Operating Voltage
SYMBOL
V
DD
CONDITIONS
MIN
2.3
TYP
(Ta=25°C)
MAX
UNIT
3.6
V
PARAMETER
Operating Current
Oscillation Stopping
Current
Stand-by Current
Input Voltage
Output Current
Input Current
3-state Off Leakage
Current
Feedback Resistance
SYMBOL
I
DD1
I
DD2
Ist
V
IH
V
IL
I
OH
I
OL
I
IN
I
OZ
Rf
CONDITIONS
A type, fosc=90MHz, C
L
=15pF
B type, fosc=110MHz, C
L
=15pF
C type, fosc=135MHz, C
L
=15pF
CONT=V
SS
, No load
CONT=XT=V
SS
, No load
Note3)
MIN
(V
DD
=2.5V,Ta=25°C)
TYP
MAX
UNIT
10
20
mA
10
20
15
30
2
5
1
3.5
0.5
uA
uA
V
V
mA
mA
uA
uA
uA
kΩ
V
OH
=2.2V
V
OL
=0.3V
CONT=0.8V
DD
CONT=0.2V
DD
CONT=V
SS
, F
OUT
= V
DD
or V
SS
A type
B type
C type
A type, fosc=90MHz
B type, fosc=110MHz
C type, fosc=135MHz
A type
B type
C type
2.0
0
6
6
7.5
1.2
12.0
2.0
±0.1
Internal Capacitor
Maximum Oscillation
Frequency
Cg/Cd
3.8
3.8
2.9
11/12
9/10
8/9
90
110
135
45
50
3
3
55
4
4
200
200
pF
F
MAX
MHz
%
ns
ns
ns
ns
Output Signal
SYM
C
L
=15pF, @V
DD
/2
Symmetry
Output Signal Rise
tr
C
L
=15pF, 10% to 90%
Time
Output Signal Fall
tf
C
L
=15pF, 90% to 10%
Time
Output Disable time
T
PLZ
C
L
=15pF, R
UP
=10kΩ
Output Enable Time
T
PZL
C
L
=15pF, R
UP
=10kΩ
Note3) Excluding input current on CONT Terminal.
2002/07/15 ( 3 / 5 )
NJU6397 Series
PARAMETER
Operating Current
Oscillation Stopping
Current
Stand-by Current
Input Voltage
Output Current
Input Current
3-state Off Leakage
Current
Feedback Resistance
SYMBOL
I
DD1
I
DD2
Ist
V
IH
V
IL
I
OH
I
OL
I
IN
I
OZ
Rf
CONDITIONS
A type, fosc=90MHz, C
L
=15pF
B type, fosc=110MHz, C
L
=15pF
C type, fosc=135MHz, C
L
=15pF
CONT=V
SS
, No load
CONT=XT=V
SS
, No load
Note3)
2.3
0
8
8
10.0
1.8
MIN
(V
DD
=3.3V,Ta=25°C)
TYP
MAX
UNIT
13
25
mA
13
25
18
35
10
1
3.3
1.0
uA
uA
V
V
mA
mA
uA
uA
uA
kΩ
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
A type
B type
C type
A type, fosc=90MHz
B type, fosc=110MHz
C type, fosc=135MHz
A type
B type
C type
15.0
3.0
±0.1
Internal Capacitor
Maximum Oscillation
Frequency
Cg/Cd
3.8
3.8
2.9
11/12
9/10
8/9
90
110
135
45
50
2
2
55
3
3
150
150
pF
F
MAX
MHz
%
ns
ns
ns
ns
Output Signal
SYM
C
L
=15pF, @V
DD
/2
Symmetry
Output Signal Rise
tr
C
L
=15pF, 10% to 90%
Time
Output Signal Fall
tf
C
L
=15pF, 90% to 10%
Time
Output Disable time
T
PLZ
C
L
=15pF, R
UP
=10kΩ
Output Enable Time
T
PZL
C
L
=15pF, R
UP
=10kΩ
Note3) Excluding input current on CONT Terminal.
2002/07/15 ( 4 / 5 )
NJU6397 Series
sMEASURMENT
CIRCUITS
(1)Output Signal Symmetry(C
L
=15pF)
1000pF
Pulse
Generator
50Ω
XT
V
DD
F
OUT
C
L
=15pF
V
SS
1/2V
DD
H
L
(2)Output Signal Rise/Fall Time(C
L
=15pF)
1000pF
Pulse
Generator
50Ω
XT
V
DD
F
OUT
C
L
=15pF
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
C
L
=15pF
F
OUT
V
OL
0.2V
DD
T
PLZ
0.8V
DD
T
PZL
V
OH
[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.
2002/07/15 ( 5 / 5 )
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