kHz Range Crystal Devices
Digital Temperature Compensated Crystal Oscillator
Surface Mount Type DTCXO KT3225T Series
CMOS/ 3.0V Typ./ 3.2
×
2.5mm
Features
• Miniature SMD type (3.2
×
2.5
×
1.0mm)
• 32.768kHz D-TCXO
• High frequency stability :
±
5.0x10
−6
/
−40
to
+
85
°
C
• Low supply current : 1.5
μ
A typ (V
DD
=
3.0V,
Output at no load)
• Temperature compensated voltage
Range : 2.0V to 5.5V
• Operating Temp. −40 to
+
105
°
C (option)
• AEC-Q200 qualified
How to Order
Frequency Tolerance (vs Temp.) :
±
3.8
×
10
−
6
/
−
10
°
C to 60
°
C
KT3225T 32768 D G R
□□
T xx
①
②
③ ④ ⑤ ⑥ ⑦ ⑧
Frequency Tolerance (vs Temp.) :
±
5.0
×
10
−
6
/
−
40
°
C to 85
°
C
KT3225T 32768 E A W
□□
T xx
①
②
③ ④ ⑤ ⑥ ⑦ ⑧
①
Series
②
Output Frequency
③
Frequency Stability
④
Lower Temperature
⑤
Upper Temperature
DGR
EAW
③
±
3.8
×
10
−6
±
5.0
×
10
−6
④
−
10
°
C
−
40
°
C
⑤
+
60
°
C
+
85
°
C
±
3.0
×
10
−6
RoHS Compliant
Applications
• High accuracy time references
• Microcontroller with built in RTC
⑥
Supply Voltage
30
33
50
3.0V
3.3V
5.0V
⑦
Initial Frequency Tolerance
T
⑧
Individual Specification
Packaging (Tape & Reel 3000 pcs./ reel)
Specifications
Item
Nominal Frequency
Oscillation Output Voltage
Temperature Compensated Voltage
Storage Temperature
Operating Temperature
Initial Frequency Tolerance
Frequency Stability vs Temp.
Frequency Stability vs Supply Voltage
Frequency Aging
Low Level Output Voltage
High Level Output Voltage
Low Level Input Voltage
High Level Input Voltage
DUTY Ratio
Rise Time
Fall Time
Start-up Time
Power Supply Current1
Power Supply Current2
Output Load Condition
*
Please contact us for other specifications.
Symbol
f_
nom
V
DD
V
TEM
T_
stg
T_
use
―
fo-Tc
df/ fo
f
_age
V
OL
V
OH
V
IL
V
IH
Duty
tr
tf
Conditions
Specifications
Min.
―
1.3
2.0
−40
−40
−3.0
−5.0
−1.0
−3.0
0.0
2.2
0.0
0.8
×
V
DD
40
―
―
―
―
―
―
―
―
Typ.
32.768
3.0
3.0
+
25
+
25
―
―
―
―
―
―
―
―
―
―
―
―
―
0.6
1.5
2.7
―
Max.
―
5.5
5.5
+
85
+
85
+
3.0
+
5.0
+
1.0
+
3.0
0.8
3.0
0.2
×
V
DD
5.5
60
100
100
1.0
3.0
2.0
4.0
5.5
15.0
Units
kHz
V
V
°
C
°
C
×
10
−6
×
10
−6
×
10
−6
/ V
×
10
−6
V
V
V
V
%
ns
ns
sec
sec
μ
A
μ
A
μ
A
pF
(Unit: mm)
Ta
=
25
±
2
°
C
E : Ta
=
−40
to
+
85
°
C
V
DD
=
2.0 to 5.5V, Ta
=
25
±
2
°
C
I
OL
=+
1.0mA, V
DD
=
3V
I
OH
=
−1.0mA,
V
DD
=
3V
CLKOE pin
CLKOE pin
CL
=
15pF
20%V
DD
→
80%V
DD
, CL
=
15pF, V
DD
=
3V
80%V
DD
→
20%V
DD
, CL
=
15pF, V
DD
=
3V
Ta
=
25
°
C
t_
str
Ta
=
−40
to 85
°
C
I
CC
1
CLKOE
=
V
SS
, V
DD
=
3V
CLKOE
=
V
DD
, V
DD
=
3V, Output at no load
I
CC
2
CLKOE
=
V
DD
, V
DD
=
3V, CL
=
15pF
L_CMOS CMOS Output
(Unit: mm)
Dimensions
3.2 0.2
#8
#7
#6
#5
Recommended Land Pattern
0.55
0.6
0.6
0.55
2.5 0.2
K
#1
#2
#3
#4
1.0 max.
0.27
C0.15
0.85
0.45
#1
#2
0.5
#3
#4
Pin No
#1
#2
#3
#4
#5
#6
#7
#8
Function
CLKOE
N.C
N.C
V
SS
CLKOUT
N.C
N.C
V
DD
1.1
0.85
1.1
0.4
0.4
0.4
0.35
0.7
#8
0.4
#7
0.5
#6
0.5
#5
R0.15
Enable/Disable
Function
#1
#5(Output)
"H" Level
Active
"L" Level High Z(No-Output)
Note: A capacitor of value 0.01 F between V
DD
and GND is recommended.
0.5
As of March 2018
Embedded System
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EEWORLD
