T
emperature Compensated Crystal Oscillators(TCXO)
Surface Mount T
ype TCXO (LSI T
ype)
KT1
8
B Series
Dimensions
Test Circuit
Recommended Land Pattern
(Unit : mm)
(Unit : mm)
Features
• Ultra-miniature SMD Type
(5.0x3.2x1.5mm)
• Reflow compatible
• AFC function available
• 2.3 to 3.5V drive available
• Frequency Stability
:
±
2.0ppm at -30
°
C to +85
°
C
How to Order
Applications
• PDC, GSM, CDMA
Specifications
KT18B - D
C V 30
-
19.680M -
T
w
qe
r
t
y
u
i
q
Type
w
Frequency stability
t
Supply Voltage
e
Lower operating temp
i
Packaging
r
Upper operating temp
y
Option Code
u
Frequency(MHz)
K
±
5ppm
E
±
2.5ppm
D
±
2.0ppm
C
−
30
°
C
E
−
20
°
C
G
−
10
°
C
W
85
°
C
V
80
°
C
U
75
°
C
28
2.8V
30
3.0V
13.000 19.200 19.800
14.400 19.440 26.000
16.800
19.680
T
Tape & Reel
4,000pcs/Reel
Item
Symbol
Conditions
Min.
Max.
Units
Output Frequency Range
Frequency
Stability
Storage Temp. Range
Operating Temp. Range
Aging
Voltage control range
Supply
Voltage
Output
Voltage
Current
Consumption
Duty
Ratio
Harmonics
F
OUT
13
26
MHz
vs
Temperature
−
2.0
+
2.0
∆
f/
fo vs
Load
−
0.2
+
0.2 ppm
vs
Voltage
−
0.3
+
0.3
T
STG
−
40
+
85
°
C
T
OPR
−
30
+
85
°
C
∆
faging
Per
Year
−
1 1
ppm
∆
f/V
Positive
+/−
8
+/−
15 ppm
V
DD
2.3
3.5
Volt
Vout
10k ohm // 10pF
0.8
-----
Vp-p
I
DD
-----
2.0 mA
SYM
@50%
V
DD
40
60
%
-----
-----
-
5
d
B
c
1.0
1.0
2.95
±
0.15
#4pin
#3pin
#1pin
#2pin
1.3
1.3
Test circuit 2
(Harmonics & Frequency)
Test circuit 1
(Amplitude)
Oscilloscope
(100MHz)
CL include Probe Capacitance
POWER
SUPPLY
Vcc
A
V
12
43
VC-TCXO
10k
Ω
±
10%
Vcon
CL=10pF
±
10%
Spectrum Analyzer
& Counter
FET
PROBE
CL include Probe Capacitance
POWER
SUPPLY
Vcc
A
V
12
43
VC-TCXO
10k
Ω
±
10%
Vcon
CL=10pF
±
10%
Dimension:(mm)
(1.6)
0.7
±
0.1
1.5(MAX)
0.70
±
0.1
0.7
±
0.1
2.95
±
0.15
0.95
±
0.1
#1pin Marking
5.0
±
0.2
3.2
±
0.2
MARKING AREA
Pin
Configuration
q
Vcon
w
GND
e
OUTPUT
r
+
Vcc
q
w
r
e
Pb Free
RoHS Conforming
5.0
×
3.2
A
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