Temperature Compensated Crystal Oscillators (TCXO)
Surface Mount Type TCXO (LSI Type) KT7050 Series for Femtocell/ Stratum3
Features
• High stability and high reliability
• 2.7 to 5.5V drive available
• Clipped sine wave or CMOS level
output
• Low phase noise
• Disable Function (KT7050A)
How to Order
For Femtocell (Standard Spec.)
①
②
③
Freq. Temp. Chrst. :
±0.1×10
-
6
/
-10°C
to 70°C
KT7050 A 20000 A G T 33 T xx
④ ⑤ ⑥ ⑦ ⑧ ⑨
For Stratum3 (Standard Spec.)
①
②
③
Applications
• Femtocell, Stratum3
• SONET/ SDH/ Ethernet
Freq. Temp. Chrst. :
±0.28×10
-
6
/
-40°C
to 85°C
KT7050 A 20000 K A W 33 T xx
④ ⑤ ⑥ ⑦ ⑧ ⑨
T
W
+70°C
+85°C
RoHS Compliant
• Compliant to the GR1244-Core & GR253-Core
• Recommended in Microsemi’s ZLAN -68 app. note for Stratum3 applications based
on tests performed by Kyocera.
①
Series
②
Land Type
A
B
10Pads
4Pads
⑥
Upper Operating Temp.
③
Output Frequency
④
Freq. Temp. Chrst.
A
K
A
G
J
+0.1×10
-
6
±0.28×10
-
6
-40°C
-10°C
0°C
⑦
Supply Voltage
33
3.3V
⑧
Voltage Control Range
T
Other
*
TCXO
VCTCXO
⑤
Lower Operating Temp.
*
Customer Spec.
⑨
Option Code
Specifications
Item
Output Frequency Range
Frequency Tolerance
Supply Voltage
Current Consumption
Frequency Aging
Voltage Control Range
Output Level
Low Level Output Voltage
High Level Output Voltage
Rise / Fall Time
(10%Vcc to 90%Vcc)
Symmetry
Phase Noise
@20MHz
Please contact us for other specifications.
Packaging (Tape & Reel 1000 pcs./ reel)
Symbol
fo
f
_tol
V
CC
I
CC
f
_age
f
_cont
Vpp
V
OL
V
OH
tr/ tf
SYM
—
Conditions
Standard Frequency: 10, 12.8, 19.2, 19.44, 20, 20.48, 24.576, 26, 30.72
vs Temperature (-10 to
+70°C)
[±(fmax-fmin)/ 2fo]
vs Temperature (-40 to
+85°C)
[±(fmax-fmin)/ 2fo]
vs Voltage
20MHz CMOS output
20years aging @40°C Including temp characteristics, initial
tolerance, rated power supply voltage change and load change.
Positive
*100k
ohm min
Clipped Sine, Load: 10k ohm // 10pF
CMOS, Load: 15pF I
OL
=4mA
CMOS, Load: 15pF I
OH
=-4mA
CMOS, Load: 15pF
50% Vcc
-
90 (@10Hz offset)
-120
(@100Hz offset)
-140
(@1kHz offset)
-150
(@10kHz offset)
-150
(@100kHz offset)
(Unit: mm)
Min.
10
-0.1
-0.28
-0.1
+2.7
—
-4.6
±5
0.8
—
90% V
CC
—
45
Max.
40
+0.1
+0.28
+0.1
+5.5
5
+4.6
±20
—
10% V
CC
—
5
55
Units
MHz
×10
-
6
V
mA
×10
-
6
×10
-
6
Vp-p
V
V
ns
%
dBc/ Hz
Dimensions
KT7050A
7.0±0.2
#8
5.0±0.2
#9
#7 #6
#5
4−1.0
#10
2.54
6−0.6
#4
#5
#7 #6
5.08
Recommended Land Pattern
0.75
0.95
(Unit: mm)
#1 #2
#3
Marking Area
#10
#1
#2 #3
1.7 max.
#4
1.27 #8
1.3
7.45
KT7050B
7.0±0.2
#4
5.0±0.2
#3
#1
#2
#1
#2
#3
#4
Pin Connection
Voltage Control (VCTCXO), GND (TCXO)
GND
Output
Vcc
1.2
5.08
4−1.4
Marking Area
4−0.9
1.7 max.
#1
#2
#4
5.08
#3
1.5
4.20
1.8
#9
#1
#2/3
#4
#5
#6/7
#8
#9
#10
Pin Connection
Do not connect (Pin1)
Do not connect
GND
Output
Do not connect
Tri-state Enable/ Disable connect
Vcc
Voltage Control (VCTCXO), GND (TCXO)
4−0.8
1.3
GND
5.45
6−0.8
2.54
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