TAI-SAW TECHNOLOGY CO., LTD.
No. 3, Industrial 2nd Rd., Ping-Chen Industrial District,
Taoyuan, 324, Taiwan, R.O.C.
TEL: 886-3-4690038
FAX: 886-3-4697532
E-mail: tstsales@mail.taisaw.com
Web: www.taisaw.com
Approval Sheet For Product Specification
Issued Date: 5/16/2008 (REV. NO: 2)
Product Name: SMD 3.2x2.5 16.367667MHz TCXO
TST Parts No.: TX0279A
Customer Parts No.:
Company:
Division:
Approved by:
Date:
Checked by:
Approval by:
Date:
CC Hsu
Robert Chang
5/16/2008
TAI-SAW TECHNOLOGY CO., LTD.
TST DCC
Release document
FR-71S03-01
TAI-SAW TECHNOLOGY CO., LTD.
No. 3, Industrial 2nd Rd., Ping-Chen Industrial District,
Taoyuan, 324, Taiwan, R.O.C.
TEL: 886-3-4690038
FAX: 886-3-4697532
E-mail: tstsales@mail.taisaw.com
Web: www.taisaw.com
SMD 3.2x2.5 16.367667MHz TCXO
MODEL NO.: TX0279A
REV. NO.: 2
RoHS Compliant
Lead free
Lead-free soldering
Features:
Ultra Miniature SMD Package
Good Frequency Stability
Good Phase Noise Response
Description and Applications:
Surface mount 3.2mmx2.5mm TCXO for GPS
Electrical Specifications:
TX0279A
Nominal Frequency, Fo
Storage Temperature Range
Operating Temperature Range
Power Supply Voltage, Vdd
Output Voltage with Load 10pF//10KΩ, Vout
Output Waveform
Power Supply Current, Icc
DC Terminal Input Impedance
Frequency Tolerance after reflow
Frequency Stability
a. Vs. Temperature (-30~85
°
C)
b. Vs. Load varied 10pF//10KΩ+/-10%
c. Vs. Supply Voltage varied 2.85+/-5%
Start Up Time (90% of final RF level in Vp-p)
Harmonics
Frequency slope
(Minimum of one measurement every 2°C)
Static temperature hysteresis
Aging
SSB Phase Noise (@1KHz Carrier Offset)
Specifications
16.367667 MHz
-40
°
C to +85
°
C
-30
°
C to +85
°
C
2.85 V
±
5%
0.8 Vp-p min
Clipped Sinewave
2.0 mA max
100K ohms min
+/- 2 ppm max @ 25
°
C +/- 3
°
C
+/- 0.5 ppm reference to the middle point betwee
minimum and maximum frequency value
+/- 0.2 ppm
+/- 0.2 ppm
2.0 msec max.
-7.0 dBc max
+/-0.05ppm/°C@-30°C~+85°C
+/- 0.6 ppm max.
+/-1.0 ppm/year @25
°
C
-130 dBc/Hz max
TAI-SAW TECHNOLOGY CO., LTD.
TST DCC
Release document
2
Mechanical Dimensions (mm):
Marking:
Line 1: Customer Frequency (16.367)
Line 2: TST Logo + Crystal Product Code + Date Code
Product Code Table
Year
Product Code
Date Code Table
WK01
A
WK14
N
WK27
a
WK40
n
WK02
B
WK15
O
WK28
b
WK41
o
WK03
C
WK16
P
WK29
c
WK42
p
WK04
D
WK17
Q
WK30
d
WK43
q
WK05
E
WK18
R
WK31
e
WK44
r
WK06
F
WK19
S
WK32
f
WK45
s
WK07
G
WK20
T
WK33
g
WK46
t
WK08
H
WK21
U
WK34
h
WK47
u
WK09
I
WK22
V
WK35
i
WK48
v
WK10
J
WK23
W
WK36
j
WK49
w
WK11
K
WK24
X
WK37
k
WK50
x
WK12
L
WK25
Y
WK38
l
WK51
y
WK13
M
WK26
Z
WK39
m
WK52
z
2005
2009
X
2006
2010
x
2007
2011
X
2008
2012
x
TAI-SAW TECHNOLOGY CO., LTD.
TST DCC
Release document
3
Recommended Circuit
Packing (mm):
1. Reel Dimension
A
Dimensions
Tolerance
180
B
C
D
E
9.1
F
2.9
H
3.9
G
T2 T1 T3
9.0
1.2
60 13.0 2.0
4.9 11.4
±1.0 +1.0 ±0.2 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±1.0 ±0.3 ±0.1
2. Tape Dimension
Unit: mm
Dimension
Tolerance
A0
B0
W
8.00
F
3.5
±0.05
E
P0
P1
P2
2
±0.05
D1
1.50
D
1.0
K0
1.75
t
0.25
±0.02
2.80 3.71
1.75 4.00 4.00
±0.1 ±0.1 ±0.1
±0.1 ±0.1 +0.3/-0.1
+0.1/-0.00 +0.25/-0.00 ±0.1
TAI-SAW TECHNOLOGY CO., LTD.
TST DCC
Release document
4
Reflow Profile:
300
Reflow Area
250
Temperature (deg C)
200
150
100
50
0
0
Rising Area
Preheat Area
Forced Cooling Area
Max peak temperature: 260 deg C
60
120
180
Time (seconds)
240
300
360
Notes of the Usage:
1. Touch the solder iron at 260+/-5 deg C onto the leads for 10+/-2 sec max or touch the
solder at 350+/-5 deg C onto the leads for 3+/-0.5 sec.
2. In the customer’s reflow process, if it will remain some mechanical stress at the soldering
terminals, also make some cracks on the soldering termination. Some cracks will cause
open or short circuit and cause of thermal increasing or smoking. Don’t make any excess
mechanical stress to soldering points.
3. In case of giving a heavy shock to the products, it may make an open or short circuit and
cause of thermal increasing and smoking. To avoid heavy shock impact applying to
products is strictly required.
Notes of the Storage:
1. To keep products under the condition at the room temperature (-5~35 deg C) with normal
humidity (45~75%). Absorption of moisture and dewdrop may make inferiority of
characteristics and a short circuit.
2. Oxidization of terminals shall make the solderability more inferior. Dusts and corrosive gas
will make a cause of the open or short circuit. Keep it in the clean place where is not in
dusty and no corrosive gas.
3. Use the unti-static material to the storage package.
4. Don’t put any excess weight to the TCXO in the storage process.
TAI-SAW TECHNOLOGY CO., LTD.
TST DCC
Release document
5
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