KT14 Series SMD Crystal Clock Oscillators
Temperature Compensated
FEATURES
1) Ultra low profile SMD
type (9.0x7.0x1.7mm)
2) Fequency adjustment
free after reflow
soldering process
3) AFC function available
(option)
4) 2.8, 3.0, 3.3V
drive available
5) 2000 pieces per reel
6) Sold in increments of
2000 pieces
HOW TO ORDER
KT14 - E C T 28 L - 19.440M T
1
2
3
4
5
6
7
8
1
2 3 4 5 6
7
8
Type
Frequency stability: D=±2ppm, E=±2.5ppm, K=±5ppm
Lower operating temp.: C=-30°C; E=-20°C, G=-10°C
Upper operating temp.: R=60°C; T=70°C; V=80°C
Supply voltage: 28=2.8V; 50=3.0V
AFC function; V=with; N=without; L=with (trimmerless)
Frequency: See table below.
Packaging: T=Tape and reel
SPECIFICATIONS
Parameters
Code
Specification
PHS
2.8V±5%
Cellular
2.8V±5%
3.0V±5%
3.3V±5%
13.000
14.400
14.850
19.200
19.680
16.800
19.440
19.800
Unit
Remarks
Supply voltage
Vcc
V
—
Output Frequency
Fout
19.200
MHz
—
Operating Temp.
Storage Temp.
Topr
Tstr
-10 ~ 60
-20 ~ 70
±2.5 max.
Frequency Stability
∆ f/fo
-30 ~ 80 max.
-40 ~ 85
±2.0 max.
±2.5 max.
±0.2 max.
±0.3 max.
±1.0 max.
1.0 min.
2.0 max.
°C
°C
—
—
vs. Temp. (After Reflow)
ppm
vs. Load
vs. Voltage
1 Year
Load 10KΩ /10pF
No Load
—
1.5V±1V, 2.5±1V
—
Aging Rate
Output Voltage
Supply Current
Trimmer Control Range
Voltage Control Range
Harmonics
Aging
Vout
Icc
∆ f/C
∆ f/V
—
±3.0 min.
—
ppm/year
Vp-p
—
mA
ppm
ppm
dBc
ex: ±8.0 ~ ±15.0
-3.0 max.
DIMENSIONS
1.2±0.1
9.0±0.3
5.08±0.15
Marking
RECOMMENDED LAND PATTERN
#2 Pin
(GND)
#4 Pin
(N.C. or V
con
)
Pad No.
(4.6)
Function
NC or Vcon
GND/CASE GND
OUTPUT
+Vcc
7.0±0.3
1
2
3
4
Freq. Adj.
#1 pin mark
1.2±0.1
1.4
0.5
1.7 max.
1.60
1.40
#3 Pin
(Output)
4.60
1.60
3.68
#4 Pin
(VCC)
1.40
TEST CIRCUIT (AMPLITUDE)
A
Synchronized
Scope Counter
Power
Supply
Vcc
V
4 3
Oscillator
1
Vcon or N.C.
TEST CIRCUIT
(HARMONICS & FREQUENCY)
A
Spectrum
Analyzer
Power
Supply
Vcc
V
4 3
Oscillator
1 2
Vcon or N.C.
RECOMMENDED REFLOW
PROFILE (IR REFLOW)
Temperature
(C°)
250
Peak: 230±5°C
15 sec. max.
200
180
150
150±10°C
2
10kΩ
±10%
C1
10kΩ
±10%
10pF
±10%
100
180°C min.
40 sec. max.
50
60 sec.
0
Time (sec.)
60 sec.
C1: Probe Capacitance (10pF)
37
NXP MCU
京公网安备 11010802033920号
EEWORLD
