Clock Crystal Oscillators
Surface Mount Type
K25-2C Series
CMOS / 2.5V / 3.2×2.5A
Features
• Miniature ceramic package
How to Order
K25-2C 0 - S E 25.0000
q w e r t
• Highly reliable with seam welding
• CMOS output
• Supply voltage VDD=2.5V
• ± 25ppm available
qType(3.2×2.5 SMD, 2.5V)
wFrequency Stability Code(See Table1)
eDuty Ratio(S: 45% to 55% STD)
rEnable/Disable Function(STD)
tOscillation Frequency(Ex.: 25.0000MHz)
Table 1
Stability
Code (ppm)
T
OPR
Note
(°C)
Packaging(Tape & Reel 2,000pcs/reel)
0
S
U
F
± ±±50
± ±±30
± ±±25
± 100
± ±±50
Standard specifications
−10 to +70
With only certain
frequencies
(
STD)
Pb Free
RoHS Conforming
With only certain
frequencies
−40 to +85
Extend
(
)
G
Specifications
Item
Symbol
Conditions
Min.
1
Max.
50
Units
Output Frequency Range
FOUT
MHz
Overall conditions:
−25
−30
−50
−55
−10
−40
−0.5
2.38
2.43
-----
+25
+30
+50
+125
+70
+85
7.0
initial tolerance, operating temperature range, rated
power supply voltage change, load change, aging(1year
@25°C), shock and vibration
Frequency Stability
FSBY
ppm
°C
Storage Temperature Range
Operating Temperature Range
Max. Supply Voltage
TSTG
TOPR
-----
Standard
Extend(option)
Stability: ± 50ppm, ± 30ppm, ± 100ppm(Ext Temp)
Stability: ± 25ppm, ± 50ppm(Ext Temp)
@50MHz
2.62
2.57
6
Volt
Supply Voltage
VDD
Current Consumption(Maximum Loaded)
Standby Current
IDD
IST
m A
µA
%
Standby Function
-----
1 0
Duty Ratio(Symmetry)
Rise/Fall Time
(10% VDD to 90% VDD Maximum Loaded)
Output Voltage-"L"
Output Voltage-"H"
Output Load
Input Voltage Range
Input Voltage-"L"
Input Voltage-"H"
Output Disable Time
Output Enable Time
Start-up Time
SYM
@50% VDD
45
55
Tr/Tf
-----
5
n S
VOL
VOH
CL
VIN
VIL
VIH
-----
IOL=4mA
IOH=−4mA
CMOS
-----
10% VDD
Volt
90% VDD
-----
1 5
-----
p F
0
VDD
30% VDD
-----
Volt
-----
Volt
70% VDD
-----
-----
-----
150
5
nS
m S
m S
-----
ST
@Minimum operating Voltage to be 0sec.
1 0
Note: Please contact us for inquires about extended operating temperature range, available frequencies and other conditions.
All electrical characteristics are defined at the maximum load and operating temperature range.
Dimensions
Recommended Land Pattern
(Unit : mm)
(Unit : mm)
2.2
1.0
3.2± 0.1
Plating:Ni+Au
Tolerance:± 0.2
e
r
q
w
Pin Connevtions
Enable/Disable Function
1.2
q
w
e
r
Control
Case GND
Output
VDD
Pad1
Open
Pad3(Output)
Active
0.9
Note: A capacitor of value 0.01µF between VDD
"H" Level
Active
1.0MAX(TYP0.89)
"L" Level High Z(No-Osillation)
and GND is recommended.