MO8918
High Temperature Oscillator
Features
Applications
Frequencies between 1 MHz and 110 MHz accurate to 6 decimal
places
Operating temperature from -40°C to +125°C. For -55°C option,
refer to MO8920 and MO8921
Supply voltage of +1.8V or +2.5V to+ 3.3V
Excellent total frequency stability as low as ±20 ppm
Low power consumption of +3.5 mA typical at 20 MHz, +1.8V
LVCMOS/LVTTL compatible output
2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2,
7.0 x 5.0 mm x mm
Industrial, medical, non AEC-Q100 automotive, avionics and
other high temperature applications
Industrial sensors, PLC, motor servo, outdoor networking
equipment, medical video cam, asset tracking systems, etc.
Industry-standard packages:
Instant samples with Time Machine II and field programmable
oscillators
RoHS and REACH compliant, Pb-free, Halogen-free and
Antimony-free
For AEC-Q100 oscillators, refer to MO8924 and MO8925
Electrical Specifications
Table 1. Electrical Characteristics
All Min and Max limits are specified over temperature and rated operating voltage with 15 pF output load unless otherwise stated. Typical values are
at +25°C and nominal supply voltage.
Parameters
Symbol
Min.
Typ.
Max.
Unit
Condition
Frequency Range
Output Frequency Range
f
1
–
110
MHz
Refer to
Table 13
for the exact list of supported frequencies
list of supported frequencies
Frequency Stability and Aging
-20
Frequency Stability
F_stab
-25
-30
-50
-40
-40
+1.62
+2.25
Supply Voltage
Vdd
+2.52
+2.7
+2.97
+2.25
Current Consumption
Idd
–
–
–
OE Disable Current
I_od
–
–
Standby Current
I_std
–
–
–
–
–
–
–
–
–
+1.8
+2.5
+2.8
+3.0
+3.3
–
+3.8
+3.6
+3.5
–
–
+2.6
+1.4
+0.6
–
1.0
1.3
1.0
–
–
+20
+25
+30
+50
+105
+125
+1.98
+2.75
+3.08
+3.3
+3.63
+3.63
+4.7
+4.5
+4.5
+4.5
+4.3
+8.5
+5.5
+4.0
ppm
ppm
ppm
ppm
°C
°C
V
V
V
V
V
V
mA
mA
mA
mA
mA
μA
μA
μA
No load condition, f = 20 MHz, Vdd = +2.8V, +3.0V or +3.3V
No load condition, f = 20 MHz, Vdd = +2.5V
No load condition, f = 20 MHz, Vdd = +1.8V
Vdd = +2.5V to +3.3V, OE = Low, Output in high Z state.
Vdd = +1.8V, OE = Low, Output in high Z state.
Vdd = +2.8V to +3.3V,
ST
= Low, Output is weakly pulled down
Vdd = +2.5V,
ST
= Low, Output is weakly pulled down
Vdd = +1.8V,
ST
= Low, Output is weakly pulled down
All Vdds
Vdd = +2.5V, +2.8V, +3.0V or +3.3V, 20% - 80%
Vdd =+1.8V, 20% - 80%
Vdd = +2.25V - +3.63V, 20% - 80%
IOH = -4.0 mA (Vdd = +3.0V or +3.3V)
IOH = -3.0 mA (Vdd = +2.8V or +2.5V)
IOH = -2.0 mA (Vdd = +1.8V)
IOL = +4.0 mA (Vdd = +3.0V or +3.3V)
IOL = +3.0 mA (Vdd = +2.8V or +2.5V)
IOL = +2.0 mA (Vdd = +1.8V)
+81-79-426-3211
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Revised June 18, 2015
Extended Industrial
Automotive
Inclusive of Initial tolerance at +25°C, 1st year aging at +25°C,
and variations over operating temperature, rated power supply
voltage and load (15 pF ± 10%).
Operating Temperature Range
Operating Temperature Range
(ambient)
T_use
Supply Voltage and Current Consumption
LVCMOS Output Characteristics
Duty Cycle
Rise/Fall Time
DC
Tr, Tf
45
–
–
–
Output High Voltage
VOH
90%
–
55
2.0
2.5
3.0
–
%
ns
ns
ns
Vdd
Output Low Voltage
VOL
10%
Vdd
Daishinku Corp.
Rev. 1.01
1389 Shinzaike, Hiraoka-cho, Kakogawa, Hyogo 675-0194 Japan
MO8918
High Temperature Oscillator
Table 1. Electrical Characteristics (continued)
Parameters
Symbol
Min.
Typ.
–
–
87
–
–
–
–
Max.
–
30%
150
–
Unit
Condition
Input Characteristics
Input High Voltage
Input Low Voltage
Input Pull-up Impedence
VIH
VIL
Z_in
2.0
–
–
–
–
RMS Period Jitter
T_jitt
–
–
Peak-to-peak Period Jitter
T_pk
–
–
RMS Phase Jitter (random)
T_phj
–
70%
–
50
Vdd
Vdd
kΩ
MΩ
Pin 1, OE or
ST
Pin 1, OE or
ST
Pin 1, OE logic high or logic low, or
ST
logic high
Pin 1,
ST
logic low
Measured from the time Vdd reaches its rated minimum value
f = 110 MHz. For other frequencies, T_oe = 100 ns + 3 * clock
periods
Measured from the time
ST
pin crosses 50% threshold
f = 75MHz, Vdd = +2.5V, +2.8V, +3.0V or +3.3V
f = 75MHz, Vdd = +1.8V
f = 75MHz, Vdd = +2.5V, +2.8V, +3.0V or +3.3V
f = 75MHz,Vdd = +1.8V
f = 75MHz, Integration bandwidth = 900 kHz to 7.5 MHz
f = 75MHz, Integration bandwidth = 12 kHz to 20 MHz
Startup and Resume Timing
Startup Time
Enable/Disable Time
Resume Time
T_start
T_oe
T_resume
5.0
130
5.0
Jitter
1.6
1.9
12
14
0.5
1.3
2.5
3.0
20
25
0.8
2.0
ps
ps
ps
ps
ps
ps
ms
ns
ms
Table 2. Pin Description
Pin
Symbol
Output
Enable
1
OE/ ST/NC
Standby
Functionality
H
[1]
: specified frequency output
L: output is high impedance. Only output driver is disabled.
H
[1]
: specified frequency output
L: output is low (weak pull down). Device goes to sleep mode. Supply
current reduces to I_std.
Any voltage between 0 and Vdd or Open
[1]
: Specified frequency
output. Pin 1 has no function.
Electrical ground
Oscillator output
Power supply voltage
[2]
OE/ST/NC
1
4
Top View
VDD
No Connect
2
3
4
Notes:
GND
OUT
VDD
Power
Output
Power
GND
2
3
OUT
Figure 1. Pin Assignments
1. In OE or ST mode, a pull-up resistor of 10 kΩ or less is recommended if pin 1 is not externally driven. If
pin 1 needs to be left floating, use the NC option.
2. A capacitor of value 0.1 µF or higher between Vdd and GND is required.
Rev. 1.01
Page 2 of 13
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MO8918
High Temperature Oscillator
Table 3. Absolute Maximum Limits
Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual perfor-
mance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings.
Parameter
Storage Temperature
Vdd
Electrostatic Discharge
Soldering Temperature (follow standard Pb free soldering guidelines)
Junction Temperature
[3]
Min.
-65
-0.5
–
–
–
Max.
+150
+4.0
+2000
+260
+150
Unit
°C
V
V
°C
°C
Note:
3. Exceeding this temperature for extended period of time may damage the device.
Table 4. Thermal Consideration
[4]
Package
7050
5032
3225
2520
2016
JA, 4 Layer Board
(°C/W)
142
97
109
117
152
JA, 2 Layer Board
(°C/W)
273
199
212
222
252
JC, Bottom
(°C/W)
30
24
27
26
36
Note:
4. Refer to JESD51-7 for
JA
and
JC
definitions, and reference layout used to determine the
JA
and
JC
values in the above table.
Table 5. Maximum Operating Junction Temperature
[5]
Max Operating Temperature (ambient)
+105°C
+125°C
Maximum Operating Junction Temperature
+115°C
+135°C
Note:
5. Datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature.
Table 6. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Moisture Sensitivity Level
Condition/Test Method
MIL-STD-883F, Method 2002
MIL-STD-883F, Method 2007
JESD22, Method A104
MIL-STD-883F, Method 2003
MSL1 @ 260°C
Rev. 1.01
Page 3 of 13
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MO8918
High Temperature Oscillator
Test Circuit and Waveform
[6]
Vdd
Vout
Test
Point
tr
80% Vdd
tf
4
Power
Supply
0.1µF
1
3
15pF
(including probe
and fixture
capacitance)
2
50%
20% Vdd
High Pulse
(TH)
Period
Low Pulse
(TL)
Vdd
OE/ST Function
1kΩ
Figure 2. Test Circuit
Note:
6. Duty Cycle is computed as Duty Cycle = TH/Period.
Figure 3. Waveform
Timing Diagrams
90% Vdd
Vdd
50% Vdd
Vdd
Pin 4 Voltage
T_start
No Glitch
during start up
[7]
ST Voltage
T_resume
CLK Output
HZ
CLK Output
HZ
T_start: Time to start from power-off
T_resume: Time to resume from ST
Figure 4. Startup Timing (OE/ST Mode)
Figure 5. Standby Resume Timing (ST Mode Only)
Vdd
50% Vdd
T_oe
OE Voltage
OE Voltage
Vdd
50% Vdd
T_oe
CLK Output
HZ
CLK Output
HZ
T_oe: Time to re-enable the clock output
T_oe: Time to put the output in High Z mode
Figure 6. OE Enable Timing (OE Mode Only)
Note:
7. MO8918 has “no runt” pulses and “no glitch” output during startup or resume.
Figure 7. OE Disable Timing (OE Mode Only)
Rev. 1.01
Page 4 of 13
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MO8918
High Temperature Oscillator
Performance Plots
[8]
1.8 V
6.0
2.5 V
2.8 V
3V
3.3 V
DUT1
DUT8
DUT15
DUT2
DUT9
DUT16
DUT3
DUT10
DUT17
DUT4
DUT11
DUT18
DUT5
DUT12
DUT19
DUT6
DUT13
DUT20
DUT7
DUT14
5.5
25
20
5.0
15
Frequency (ppm)
0
20
40
60
80
100
Idd (mA)
10
5
0
-5
-10
-15
-20
4.5
4.0
3.5
3.0
-25
‐55
‐35
‐15
5
25
45
65
85
105
125
Frequency (MHz)
Temperature (°C)
Figure 8. Idd vs Frequency
Figure 9. Frequency vs Temperature
1.8 V
4.0
3.5
2.5 V
2.8 V
3.0 V
3.3 V
55
54
53
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
RMS period jitter (ps)
3.0
52
2.5
2.0
1.5
1.0
0.5
0.0
0
20
40
60
80
100
45
0
20
40
60
80
100
Duty cycle (%)
Frequency (MHz)
51
50
49
48
47
46
Frequency (MHz)
Figure 10. RMS Period Jitter vs Frequency
Figure 11. Duty Cycle vs Frequency
1.8 V
2.5
2.5 V
2.8 V
3.0 V
3.3 V
2.5
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
2.0
2.0
Rise time (ns)
Fall time (ns)
1.5
1.5
1.0
1.0
0.5
0.5
0.0
-40
-20
0
20
40
60
80
100
120
0.0
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
Figure 12. 20%-80% Rise Time vs Temperature
Figure 13. 20%-80% Fall Time vs Temperature
Rev. 1.01
Page 5 of 13
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