Temperature Compensated Crystal Oscillators (TCXO, VCTCXO)
Surface Mount Type TCXO (LSI Type) KT7050 Series for Femtocell/ Stratum3
7.0×5.0mm
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
⑦
Voltage Control Function
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, 19.2, 20, 24.576, 26, 30.72, 38.88, 40
vs Temperature (
−
10 to
+
70
°
C) [
±
(fmax-fmin)/ 2fo]
vs Temperature (
−
40 to
+
85
°
C) [
±
(fmax-fmin)/ 2fo]
vs Voltage
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)
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
6
+
4.6
±
20
—
10% V
CC
—
8
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
#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
Recommended Land Pattern
0.75
0.95
(Unit: mm)
#1 #2
#3
1.3
GND
1.3
7.45
5.08
1.2
1.5
4.20
1.8
5.45
#9
1.7 max.
1.27 #8
#1
#2 #3
KT7050B
7.0±0.2
#4
5.0±0.2
#3
4−1.4
#1
#2
#1
#2
#3
#4
Pin Connection
Voltage Control (VCTCXO), GND (TCXO)
GND
Output
Vcc
1.7 max.
#1
#2
#4
5.08
#3
4−0.9
6−0.8
#10
#4
2.54
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