Temperature Compensated
Crystal Oscillators
KT14 Series
FEATURES
• Low profile SMD type
• AFC function available
(9.0x7.0x1.7mm)
• 2.8, 3.0, 3.3V drive available
• Frequency adjustment free after reflow soldering process
APPLICATIONS
• PHS, PDC, GSM, DCS1800, AMPS, CDMA, D-AMPS,
PCS1900, etc.
DIMENSIONS
9.0 (0.354)±0.3 (0.012)
Marking
7.0 (0.276)
±0.3
(0.012)
millimeters (inches)
HOW TO ORDER
KT14 - E G R 28 N - 19.200M
T
T = Tape and reel 2,000 pcs/reel
Packaging
FREQ. ADJ.
#1pin Mark
Frequency (MHz)
12.8000 14.850
13.000 16.800
14.400 19.200
19.440
19.680
19.800
1.7 (0.067)
max
5.08 (0.200)
±0.15
(0.006)
1.2 (0.047)
±0.1
(0.004)
4.6 (0.181)
4
3
1
2
AFC Function
Pin Configuration
N = No, L = Yes (Trimmerless)
➀
➁
➂
➃
N. C. or V
CON
GND
OUTPUT
+Vcc
Supply Voltage
28 = 2.8V,
30 = 3.0V
Upper Operating Temp.
V = 80°C, T = 70°C, R = 60°C
1.2 (0.047)
±0.1
(0.004)
Lower Operating Temp.
C = -30°C, G = -10°C, E = -20°C
1.4 (0.055)
0.5 (0.020)
Frequency Stability
K = ±5ppm, E = ±2.5ppm,
D = ±2.0ppm
TEST CIRCUIT
Test Circuit 1 (Amplitude)
A
Synchronized
Scope Counter
POWER
SUPPLY
V
A
Series
Test Circuit 2 (Harmonics and Frequency)
Spectrum Analyzer
4
3
OSCILLATOR
1
Vcon or N.C.
2
10pF
10K
Ω
100K
Ω
POWER
SUPPLY
Vcc
V
4
3
OSCILLATOR
1
2
C1
Vcon or N.C.
10KΩ
Vcc
C1 : Probe Capacitance(10.8pF)
SPECIFICATIONS
Specifications
Items
Supply Voltage
Code
V
CC
PHS
2.8±5%
Cellular
2.8±5%
3.0±5%
3.3±5%
12.800 13.000 14.000
14.850 16.800
19.200 19.440
19.680 19.800
-30 to +80
-40 to 85
±2.0 max.
±2.5 max.
±0.2 max.
±0.3 max.
±1.0 max.
0.8 min.
2.0 max.
—
ex: ±4.0 to ±8.0
-3.0 max.
Unit
V
Remarks
—
Output Frequency
Operating Temperature
Storage Temperature
Frequency Stability
Aging Rate
Output Voltage
Supply Current
Trimmer Control Range
Voltage Control Range
Harmonics
fo
Topr
Tstr
f/fo
19.200
-10 to 60
-20 to 70
±2.5 max.
MHz
°C
°C
ppm
ppm
ppm
ppm/year
Vp-p
mA
ppm
ppm
dBc
—
—
—
vs temperature (after reflow)
vs load
vs voltage
1 year
load 10kΩ/10pF
no load
—
1.5V±1V, 2.5V±1V
—
Aging
Vout
Icc
f/C
f/V
—
±3.0 min.
—
40
Temperature Compensated
Crystal Oscillators
KT16 Series
FEATURES
• Miniature SMD type
(7.0x5.2.0x1.8mm)
• Frequency adjustment free
after reflow soldering process
• AFC function available
• 2.7V, 3.0V, 3.3V
drive available
• Frequency Stability =
±2ppm at 30 to +80°C
APPLICATIONS
DIMENSIONS
7.0 (0.276)
±0.3
(0.012)
millimeters (inches)
• PDC, GSM, CDMA, TDMA
HOW TO ORDER
KT16 - D C V 30 L - 19.680M
T
T = Tape and reel 4,000 pcs/reel
Marking Area
5.2 (0.205)
±0.3
(0.012)
#1 pin mark
Packaging
Frequency (MHz)
12.800
13.000
14.400
14.850
16.800
19.200
19.440
19.680
19.800
1.8 (0.071) max
5.08 (0.200)
1.0 (0.039)
1
3.2 (0.126)
4
1.0 (0.039)
3
2
Pin Configuration
AFC Function
V = Yes
➀
➁
➂
➃
V
CON
GND/CASE GND
OUTPUT
+Vcc
Supply Voltage
28 = 2.8V,
30 = 3.0V
Upper Operating Temp.
V = 80°C, T = 70°C, R = 60°C
Lower Operating Temp.
C = -30°C, G = -10°C, E = -20°C
1.2 (0.047)
0.4 (0.016)
Frequency Stability
K = ±5ppm, E = ±2.5ppm,
D = ±2.0ppm
TEST CIRCUIT
Test Circuit 1 (Amplitude)
A
Synchronized
Scope Counter
POWER
SUPPLY
Vcc
Series
Test Circuit 2 (Harmonics and Frequency)
A
Spectrum
Analyzer
POWER
SUPPLY
Vcc
V
4 3
OSCILLATOR
1 2
Vcon or N.C.
10kΩ
±5%
100kΩ
C1
V
4 3
OSCILLATOR
1 2
Vcon or N.C.
10kΩ
±5%
100kΩ
10pF
±5%
SPECIFICATIONS
Items
Supply Voltage
Code
V
CC
26.000
19.680
13.000
-30 to +80
-40 to +85
±2.0 max.
±2.5 max.
±0.2 max.
±0.3 max.
±1.0 max.
0.8 min.
1.5 max.
—
±8.0 to ±15
-3.0 max.
Specifications
Cellular
2.7
3.0
3.3
19.440
14.400
12.800
Unit
V
MHz
°C
°C
ppm
ppm
ppm
ppm/year
Vp-p
mA
ppm
ppm
dBc
Remarks
—
—
—
—
vs temperature (after reflow)
vs load
vs voltage
25°C±2°C
load 10kΩ/10pF
—
—
—
—
Output Frequency
Operating Temperature
Storage Temperature
Frequency Stability
Aging Rate
Output Voltage
Supply Current
Trimmer Control Range
Voltage Control Range
Harmonics
fo
Topr
Tstg
f/fo
Aging
Vout
Icc
f/C
f/V
—
41
Temperature Compensated
Crystal Oscillators
KT18 Series
FEATURES
• Miniature SMD type
(5.0x3.2x1.5mm)
• Frequency adjustment free
after reflow soldering process
• AFC function available
• 2.6 to 5.5V
drive available
• Frequency Stability =
±2ppm at 30 to +80°C
APPLICATIONS
DIMENSIONS
5.0 (0.197)
±0.2
(0.008)
MARKING AREA
millimeters (inches)
• PDC, GSM, CDMA, TDMA
HOW TO ORDER
KT18 - D C V 30 A - 19.680M T
3.2 (0.126)
±0.2
(0.008)
#1pin Marking
Packaging
T = Tape and reel 4,000 pcs/reel
Frequency (MHz)
1.5 (0.059)
(MAX)
0.45 (0.018)
±0.1
(0.004)
Terminal:W+Ni(1~9µm)+Au(0.3~0.7µm)
2.95 (0.116)
±0.15
(0.006)
1
0.7 (0.028)
±0.1
(0.004)
1.6 (0.063)
0.7 (0.028)
±0.1
(0.004)
4
0.95 (0.037)
±0.1(
0.004)
3
2
12.800
13.000
14.400
Pin Configuration
16.800
19.200
19.440
19.680
19.800
26.000
AFC Function
A = Yes
➀
➁
➂
➃
N.CorVcon
GND/CASE GND
OUTPUT
+Vcc
Supply Voltage
28 = 2.8V,
30 = 3.0V
Upper Operating Temp.
V = 80°C, T = 70°C, R = 60°C
Lower Operating Temp.
C = -30°C, G = -10°C, E = -20°C
Frequency Stability
K = ±5ppm, E = ±2.5ppm,
D = ±2.0ppm
TEST CIRCUIT
Test Circuit 1 (Amplitude)
A
Synchronized
Scope Counter
POWER
SUPPLY
Vcc
Series
Test Circuit 2 (Harmonics and Frequency)
A
Spectrum
Analyzer
POWER
SUPPLY
Vcc
V
4 3
OSCILLATOR
1 2
Vcon or N.C.
10kΩ
±5%
100kΩ
C1
V
4 3
OSCILLATOR
1 2
Vcon or N.C.
10kΩ
±5%
100kΩ
10pF
±5%
SPECIFICATIONS
Items
Supply Voltage
Output Frequency
Operating Temperature
Storage Temperature
Frequency Stability
Aging Rate
Output Voltage
Supply Current
Trimmer Control Range
Voltage Control Range
Harmonics
Code
V
CC
fo
Topr
Tstg
f/fo
Aging
Vout
Icc
f/C
f/V
—
26.000
19.680
13.000
Specifications
Cellular
2.6 to 5.5
19.440
14.400
12.800
-30 to +80
-40 to +85
±1.5 max.
±2.0 max.
±0.2 max.
±0.3 max.
±1.0 max.
0.8 min.
2.0 max.
—
±8.0 to ±15
-3.0 max.
Unit
V
19.200
19.800
16.800
MHz
°C
°C
ppm
ppm
ppm
ppm/year
Vp-p
mA
ppm
ppm
dBc
Remarks
—
—
—
—
vs temperature (after reflow)
vs load
vs voltage
25°C±2°C
load 10kΩ/10pF
—
—
—
—
42
Temperature Compensated
Crystal Oscillators
RECOMMENDED LAND PATTERN
mm (inches)
#2PIN
(GND)
c
#1PIN
(N.C or Vcon)
t
REEL DIMENSIONS
millimeters (inches)
C
B
a
D
A
c
d
#3PIN
(OUTPUT)
b
#4PIN
(Vcc)
d
W
A
KT14
KT16
KT18
4.60
(0.181)
3.20
(0.126)
1.60
(0.063)
B
3.68
(0.145)
3.88
(0.153)
2.95
(0.116)
C
1.60
(0.063)
1.30
(0.051)
0.70
(0.028)
D
1.40
(0.055)
1.20
(0.047)
0.95
(0.037)
A
KT14
KT16
KT18
ø330
(ø13.00)
B
ø100
(ø3.937)
ø80
(ø3.150)
ø100
(ø3.937)
C
D
W
17.5
(0.689)
13.5
(0.531)
t
2.0
(0.079)
2.20
(0.087)
ø13
(ø0.512)
ø21
(ø0.827)
PACKAGING
H
C
J
I
L
B
millimeters (inches)
A
D
G
E
#1pin
Feeding direction
F
K
R0.3 max
A
B
C
D
E
F
G
H
I
J
K
L
7.80
7.90 12.0 ø1.55
KT14
(0.307) (0.311) (0.472) (ø0.061)
16.0
7.50
(0.630) (0.295) 1.75
7.65
5.75 8.00 ø2.00 ø1.50
4.00
2.00
KT16
(0.069) (0.301) (0.226) (0.315) (0.079) (ø0.059) (0.157) (0.061)
12.0
5.50
5.50
3.70 8.00 ø1.50
KT18
(0.472) (0.217)
(0.217) (0.146) (0.315) (ø0.059)
1.80
(0.071)
0.30
2.00
(0.012) (0.061)
1.60
(0.063)
RECOMMENDED REFLOW PROFILE
Temp(°C)
250
Peak : 235±5°C
10sec max
PACKAGING
KT14: 2,000 pcs/reel
KT16/KT18: 4,000 pcs/reel
200
180
150
160±10°C
100
200°C min
40sec max
50
90sec
0
Time(sec)
43
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