KT12 Series SMD Crystal Clock Oscillators
Temperature Compensated
FEATURES
HOW TO ORDER
1) Miniature SMD type
(11.6x9.6x2.3mm)
2) Frequency adjustment
free after reflow
KT12
- D C V 33 V - 19.680M T
1
2
3
4 5
6
7
8
9
1 Type
2 Terminals: Blank ( )=4 terminals, A=6 terminals
B=8 terminals
soldering process
3) AFC function available
(option)
3
Frequency stability: D=±2ppm, E=±2.5ppm, K=±5ppm
4 Lower operaing temp.: C=-30°C; E=-20°C, G=-10°C
5 Upper operating temp.: R=60°C; T=70°C; V=80°C
6 Supply voltage: 30=3.0V; 50=5.0V
7 AFC function; V=with; N=without; L=with (trimmerless)
8 Frequency: See table below
4) 3V/5V drive available
5) Frequency stability:
±2ppm at -30~+80°C
6) 2000 pieces per reel
7) Sold in increments of
2000 pieces
9 Packaging: T= Tape and reel
SPECIFICATIONS
Specification
Parameters
Code
Unit
Remarks
PHS
Cellular
3.0V±±5
±.0V±±5
Supply Voltage
Vcc
3.0V±±5
V
19.680
19.200
14.400
12.800
Output Frequency
Fout
19.200
16.800
13.000
MHz
—
Operating Temp.
Storage Temp.
Topr
Tstr
-10 ~ 60
-20 ~ 70
-30 ~ 80 max.
°C
°C
—
—
-40 ~ 8±
±2.0 max.
±2.±max.
±2.± max.
vs. Temp. (After Reflow)
Frequency Stability
f/fo
ppm
±0.2 max.
±0.3 max.
±1.0 max.
1.0 min.
vs. Load
vs. Voltage
1 Year
Aging Rate
Aging
Vout
Icc
ppm/year
Vp-p
mA
Output Voltage
Supply Current
Trimmer Control Range
Voltage Control Range
Harmonics
Load 10k /10pF
—
2.0 max.
±3.0 min.
f/C
ppm
Internal Trimmer
1.±V±1Vꢀ 2.±±1V
—
f/V
ex: ±4.0 ~ ±8.0
-3.0 max.
ppm
—
dBc
DIMENSIONS
RECOMMENDED LAND PATTERN
#2 Pin
(GND)
#4 Pin
11.6±0.3
7.62±0.15
(N.C. or Vcon
)
1
4
2
3
Marking
Pad No.
Function
NC or Vcon
GND/Case GND
OUTPUT
1
2
3
4
Freq. Adj.
1.0
+Vcc
1.40
3.68
1.40
#4 Pin
(VCC
#3 Pin
(Output)
)
RECOMMENDED REFLOW
PROFILE (IR REFLOW)
TEST CIRCUIT
(HARMONICS & FREQUENCY)
TEST CIRCUIT (AMPLITUDE)
(C°)
Peak: 230±5°C
250
15 sec. max.
A
A
200
180
Synchronized
Scope Counter
Spectrum
Analyzer
Power
Supply
Vcc
4
3
150±10°C
150
Power
Supply
Vcc
4
3
V
Oscillator
V
Oscillator
1
2
10kΩ
±10%
C1
100
50
0
1
2
10kΩ
±10%
10pF
±10%
180°C min.
40 sec. max.
Vcon or N.C.
Vcon or N.C.
60 sec.
60 sec.
C1: Probe Capacitance (10pF)
(sec.)
36