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.
—
42
