5.0×3.2A
Temperature Compensated Crystal Oscillators(TCXO)
Surface Mount Type TCXO(Analog Type)
KT20A Series
Features
• Miniature SMD Type
(5.0x3.2x1.5mm)
• Reflow compatible
• AFC function available
• 2.7V/2.8V/3.0V drive available
• Frequency Stability
:
±2ppm
at -30°C to +80°C
• Phase Noise -140dBc/Hz
@1kHz offset(max)
How to Order
KT20A - D C V 30
q
qSeries
wFrequency
stability
K
E
D
±5ppm
±2.5ppm
±2.0ppm
- 19.680M - T
u
i
w er t y
tSupply
Voltage
28
2.8V
30
3.0V
yOption
Code
uFrequency(MHz)
19.200 19.680 26.000
19.440 19.800
iPackaging
T
Tape & Reel
4,000pcs/Reel
Applications
Pb Free
RoHS Conforming
• GSM, CDMA
eLower
operating temp
C
−30°C
E
−20°C
G
−10°C
rUpper
operating temp
V
80°C
T
70°C
R
60°C
Specifications
Item
Output Frequency Range
Frequency Stability
Storage Temp. Range
Operating Temp. Range
Aging
Voltage control range
Supply Voltage
Output Voltage
Current Consumption
Duty Ratio
Harmonics
Symbol
F
OUT
∆
f/fo
Conditions
vs Temperature
vs Load
vs Voltage
T
STG
T
OPR
∆
faging
∆
f/V
V
DD
Vout
I
DD
SYM
--
---
Per Year
Positive
10k ohm // 10pF
@50% V
DD
Min.
19.2
−2.0
−0.2
−0.3
−30
−40
−1
+/−8
2.8
0.8
--
--
40
--
--
Max.
26
+2.0
+0.2
+0.3
+80
+85
1
+/−15
3
---
-
1.5
60
−5
Units
MHz
ppm
°C
°C
ppm
ppm
Volt
Vp-p
mA
%
dBc
Dimensions
(Unit : mm)
Test Circuit
Test circuit 1
(Amplitude)
A
Oscilloscope
(100MHz)
Recommended Land Pattern
(Unit : mm)
2.8
#4pin
1.1
#3pin
POWER
SUPPLY
Vcc
V
4
3
VC-TCXO
1
2
Vcon
10kΩ
±10%
CL=10pF
±10%
CL include Probe Capacitance
Test circuit 2
(Harmonics & Frequency)
A
Spectrum Analyzer
& Counter
POWER
SUPPLY
Vcc
1.1
#1pin
1.4
#2pin
1.4
V
4
3
VC-TCXO
1
2
Vcon
10kΩ
±10%
FET
PROBE
CL=10pF
±10%
#1pin
#2pin
#3pin
#4pin
Pin Connection
Vcon
GND
OUTPUT
Vcc
CL include Probe Capacitance
1.6
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