SIT9025AAR71H18EA24.000000 数据手册
SiT9025
ADVANCED
AEC-Q100, 1 to 150 MHz EMI Reduction Oscillator
Features
Applications
Spread spectrum for EMI reduction
Wide spread % option
Center spread: from ±0.125% to ±1%, ±0.125% step size
Down spread: -0.25% to -2% with -0.25% step size
Spread profile option: Triangular, Hershey-kiss, Random
Programmable rise/fall time for EMI reduction: 8 options, 0.25 to 40 ns
Any frequency between 1 MHz and 150 MHz accurate to 6 decimal
places
100% pin-to-pin drop-in replacement to quartz-based XO’s
Excellent total frequency stability as low as ±20 ppm
Operating temperature from -55°C to 125°C.
Low power consumption of 4.0 mA typical at 1.8V
Pin1 modes: Standby, output enable, or spread disable
Fast startup time of 5 ms
LVCMOS output
Industry-standard packages
QFN: 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5 mm2
RoHS and REACH compliant, Pb-free, Halogen-free and Antimony-free
ADAS camera
ADAS ECU
High speed serial link
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 3.3V supply voltage.
Parameters
Symbol
Min.
Typ.
Max.
Unit
Condition
Frequency Range
Output Frequency Range
f
1
–
150
MHz
Frequency Stability and Aging
Frequency Stability
F_stab
-20
–
+20
ppm
-25
–
+25
ppm
–
+50
ppm
-50
Inclusive of initial tolerance at 25°C, 1st year aging at 25°C, and
variations over operating temperature, rated power supply
voltage. Spread = Off.
Operating Temperature Range
Operating Temperature Range
T_use
-40
–
+85
°C
Industrial, AEC-Q100 Grade 3
-40
–
+105
°C
Extended Industrial, AEC-Q100 Grade 2
-40
–
+125
°C
Automotive, AEC-Q100 Grade 1
-55
–
+125
°C
Extended Automotive, AEC-Q100
Supply Voltage and Current Consumption
Supply Voltage
Current Consumption
Vdd
Idd
OE Disable Current
I_OD
Standby Current
I_std
Rev 0.3
1.62
1.8
1.98
V
2.25
2.5
2.75
V
2.52
2.8
3.08
V
2.7
3.0
3.3
V
2.97
3.3
3.63
V
2.25
–
3.63
V
–
6.5
9.0
mA
No load condition, f = 148.5 MHz, Vdd = 2.5V to 3.3V
–
5.5
7.0
mA
–
5.5
–
mA
–
5.1
–
mA
No load condition, f = 148.5 MHz, Vdd = 1.8V
f = 148.5 MHz, Vdd = 2.5V to 3.3V, OE = GND, Output in highZ state
f = 148.5 MHz, Vdd = 1.8V, OE = GND, Output in high-Z state
–
2.6
–
µA
ST = GND, Vdd = 2.5V to 3.3V, Output is weakly pulled down
–
0.9
–
µA
ST = GND, Vdd = 1.8V, Output is weakly pulled down
April 6, 2018
www.sitime.com
SiT9025 1 to 141 MHz EMI Reduction Oscillator
Table 1. Electrical Characteristics (continued)
Parameters
Symbol
Min.
Typ.
Max.
Unit
Condition
LVCMOS Output Characteristics
Duty Cycle
Rise/Fall Time
DC
45
–
55
%
Tr, Tf
–
1.3
2.5
ns
–
–
2
ns
Vdd =1.8V, 20% - 80%, default derive strength
Vdd = 2.25V - 3.63V, 20% - 80%, default derive strength
Output High Voltage
VOH
90%
–
–
Vdd
IOH = -4 mA (Vdd = 3.0V or 3.3V)
IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOH = -2 mA (Vdd = 1.8V)
Output Low Voltage
VOL
–
–
10%
Vdd
IOL = 4 mA (Vdd = 3.0V or 3.3V)
IOL = 3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOL = 2 mA (Vdd = 1.8V)
Input High Voltage
VIH
70%
–
–
Vdd
Pin 1, OE or ST
Input Low Voltage
VIL
–
–
30%
Vdd
Pin 1, OE or ST
Input Pull-up Impedance
Z_in
–
87
–
kΩ
Pin 1, OE logic high or logic low, or ST logic high
–
8
–
MΩ
Pin 1, ST logic low
T_start
–
–
5
ms
Measured from the time Vdd reaches its rated minimum value
T_oe
–
–
215
ns
f = 148.5 MHz. For other frequencies, T_oe = 100 ns + 3 * cycles
Input Characteristics
Startup and Resume Timing
Startup Time
Enable/Disable Time
Resume Time
T_resume
–
–
5
ms
Measured from the time ST pin crosses 50% threshold
Spread Enable Time
T_sde
–
–
4
µs
Measured from the time SD pin crosses 50% threshold
Spread Disable Time
T_sdde
–
–
50
µs
Measured from the time SD pin crosses 50% threshold
Jitter
Cycle-to-cycle jitter
T_ccj
–
10.5
–
ps
f = 148.5 MHz, Vdd = 2.5 to 3.3V, Spread = ON( or OFF)
–
12.5
–
ps
f = 148.5 MHz, Vdd = 1.8V, Spread = ON( or OFF)
Table 2. Spread Spectrum %[1]
Table 3. Spread Profile[2]
Ordering
Code
Center Spread
(%)
Down Spread
(%)
Spread Profile
A
±0.125
-0.25
Hershey-kiss
B
±0.250
-0.50
Random
C
±0.390
-0.78
D
±0.515
-1.04
E
±0.640
-1.29
F
±0.765
-1.55
G
±0.905
-1.84
H
±1.030
-2.10
I
±1.155
-2.36
J
±1.280
-2.62
K
±1.420
-2.91
L
±1.545
-3.18
M
±1.670
-3.45
N
±1.795
-3.71
O
±1.935
-4.01
P
±2.060
-4.28
Triangular
Notes:
1. Contact SiTime for availability of these spread options at -40
to 105°C, -40 to 125°C or -55 to 125°C temperature ranges.
2. In both Triangular and Hershey-kiss profiles, modulation rate
is employed with a frequency of ~31.25 kHz. In random
profile, modulation rate is ~ 8.6 kHz
Rev. 0.3
Page 2 of 7
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SiT9025 1 to 141 MHz EMI Reduction Oscillator
Table 4. Pin Description
Pin
1
Symbol
Output
Enable
OE / ST /
NC / SD
Top View
Functionality
[3]
H : specified frequency output
L: output is high impedance. Only output driver is disabled.
OE /
/
NC / SD
1
4
VDD
2
3
OUT
[3]
Standby
H : specified frequency output
L: output is low (week pull down). Device goes to sleep mode.
Supply current reduced to I_std.
No
Connect
Pin1 has no function (Any voltage between 0 and Vdd or Open)
Spread
Disable
H: Spread = ON
L: Spread = OFF
2
GND
Power
Electrical ground
3
OUT
Output
Oscillator output
4
VDD
Power
Power supply voltage[4]
GND
Figure 1. Pin Assignments
Notes:
3. 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.
4. A capacitor of value 0.1 µF or higher between Vdd and GND is required.
Table 5. Absolute Maximum Limits
Attempted operation outside the absolute maximum ratings may cause permanent damage to the part. Actual performance of the IC is
only guaranteed within the operational specifications, not at absolute maximum ratings.
Parameter
Min.
Max.
Unit
Storage Temperature
-65
150
°C
Vdd
-0.5
4
V
Electrostatic Discharge
–
2000
V
Soldering Temperature (follow standard Pb free soldering guidelines)
–
260
°C
Junction Temperature[5]
–
150
°C
Note:
5. Exceeding this temperature for extended period of time may damage the device.
Table 6. Maximum Operating Junction Temperature[6]
Max Operating Temperature (ambient)
Maximum Operating Junction Temperature
70°C
80°C
85°C
95°C
Note:
6. Datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature.
Table 7. Environmental Compliance
Parameter
Condition/Test Method
Mechanical Shock
MIL-STD-883F, Method 2002
Mechanical Vibration
MIL-STD-883F, Method 2007
Temperature Cycle
Solderability
Moisture Sensitivity Level
Rev. 0.3
JESD22, Method A104
MIL-STD-883F, Method 2003
MSL1 @ 260°C
Page 3 of 7
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SiT9025 1 to 141 MHz EMI Reduction Oscillator
Timing Diagrams
90% Vdd
Vdd
Vdd
50% Vdd
T_start
Pin 4 Voltage
[7]
No Glitch
during start up
T_resume
ST Voltage
CLK Output
CLK Output
HZ
HZ
T_start: Time to start from power-off
T_resume: Time to resume from ST
Figure 1. Startup Timing
Figure 2. Standby Resume Timing (ST Mode Only)
Vdd
Vdd
50% Vdd
OE Voltage
50% Vdd
T_oe
OE Voltage
T_oe
CLK Output
CLK Output
HZ
HZ
T_oe: Time to re-enable the clock output
Figure 3. OE Enable Timing (OE Mode Only)
T_oe: Time to put the output in High Z mode
Figure 4. OE Disable Timing (OE Mode Only)
Vdd
SD Voltage
50% Vdd
50% Vdd
T_sde
Modulation period = 32µs (31.25kHz)
Frequency
Deviation (%)
T_sdde
Frequency
Deviation (%)
SD Voltage
Vdd
Time (s)
Time (s)
Figure 5. SD Enable Timing (SD Mode Only)
Figure 6. SD Diable Timing (SD Mode Only)
Note:
7. SiT9025 has “no runt” pulses and “no glitch” output during startup or resume.
Rev. 0.3
Page 4 of 7
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SiT9025 1 to 141 MHz EMI Reduction Oscillator
Rise/Fall Time (20% to 80%) vs CLOAD Tables
Table 8. Vdd = 1.8V Rise/Fall Times for Specific CLOAD
Table 9. Vdd = 2.5V Rise/Fall Times for Specific CLOAD
Rise/Fall Time Typ (ns)
Rise/Fall Time Typ (ns)
Drive Strength \ CLOAD
5 pF
15 pF
30 pF
45 pF
60 pF
Drive Strength \ CLOAD
5 pF
15 pF
30 pF
45 pF
60 pF
L
A
R
B
T
E
U
F or "‐": default
6.16
3.19
2.11
1.65
0.93
0.78
0.70
0.65
11.61
6.35
4.31
3.23
1.91
1.66
1.48
1.30
22.00
11.00
7.65
5.79
3.32
2.94
2.64
2.40
31.27
16.01
10.77
8.18
4.66
4.09
3.68
3.35
39.91
21.52
14.47
11.08
6.48
5.74
5.09
4.56
L
A
R
B
T
E or "‐": default
U
F
4.13
2.11
1.45
1.09
0.62
0.54
0.43
0.34
8.25
4.27
2.81
2.20
1.28
1.00
0.96
0.88
12.82
7.64
5.16
3.88
2.27
2.01
1.81
1.64
21.45
11.20
7.65
5.86
3.51
3.10
2.79
2.54
27.79
14.49
9.88
7.57
4.45
4.01
3.65
3.32
Table 10. Vdd = 2.8V Rise/Fall Times for Specific
CLOAD
Table 11. Vdd = 3.0V Rise/Fall Times for Specific
CLOAD
Rise/Fall Time Typ
Rise/Fall Time Typ (ns)
Drive Strength \ CLOAD
L
A
R
B
T
5 pF
3.77
1.94
1.29
0.97
0.55
15 pF
7.54
3.90
2.57
2.00
1.12
30 pF
12.28
7.03
4.72
3.54
2.08
45 pF
19.57
10.24
7.01
5.43
3.22
60 pF
25.27
13.34
9.06
6.93
4.08
E or "‐": d efault
U
F
0.44
0.34
0.29
1.00
0.88
0.81
1.83
1.64
1.48
2.82
2.52
2.29
3.67
3.30
2.99
Drive Strength \ CLOAD
L
A
R
B
T or "‐": d efau lt
E
U
F
5 pF
3.60
1.84
1.22
0.89
0.51
0.38
0.30
0.27
15 pF
7.21
3.71
2.46
1.92
1.00
0.92
0.83
0.76
30 pF
11.97
6.72
4.54
3.39
1.97
1.72
1.55
1.39
45 pF
18.74
9.86
6.76
5.20
3.07
2.71
2.40
2.16
60 pF
24.30
12.68
8.62
6.64
3.90
3.51
3.13
2.85
Table 12. Vdd = 3.3V Rise/Fall Times for Specific CLOAD
Rise/Fall Time Typ (ns)
Drive Strength \ CLOAD
L
A
R
B
5 pF
3.39
1.74
1.16
0.81
15 pF
6.88
3.50
2.33
1.82
30 pF
11.63
6.38
4.29
3.22
45 pF
17.56
8.98
6.04
4.52
60 pF
23.59
12.19
8.34
6.33
T or "‐": d efau lt
E
U
F
0.46
0.33
0.28
0.25
1.00
0.87
0.79
0.72
1.86
1.64
1.46
1.31
2.60
2.30
2.05
1.83
3.84
3.35
2.93
2.61
Rev. 0.3
Page 5 of 7
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SiT9025 1 to 141 MHz EMI Reduction Oscillator
Dimensions and Patterns
Package Size – Dimensions (Unit: mm)[8]
Recommended Land Pattern (Unit: mm)[9]
2.0 x 1.6 x 0.75 mm
2.5 x 2.0 x 0.75 mm
2.5 ± 0.05
#4
1.5
1.1
#3
0.5
#2
#2
#1
1.0
YXXXX
#1
1.9
1.00
#3
2.0 ± 0.05
#4
0.75 ± 0.05
0.75
1.1
3.2 x 2.5 x 0.75 mm
3.2 ± 0.05
1.9
#1
1.2
#2
0.75 ± 0.05
#2
#4
0.9
#3
0.7
YXXXX
#1
2.2
2.1
#3
2.5 ± 0.05
#4
0.9
1.4
Notes:
8. Top marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of “Y” will depend on the assembly location of the
device.
9. A capacitor of value 0.1 µF or higher between Vdd and GND is required.
Rev. 0.3
Page 6 of 7
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SiT9025 1 to 141 MHz EMI Reduction Oscillator
Ordering Information
The Part No. Guide is for reference only. To customize and build an exact part number, use the SiTime Part Number
Generator.
SiT9025AA -71-18EA2 5 .000625D
Part Family
“SiT9025”
Packing Method
“D”: 8 mm Tape & Reel, 3ku reel
“E”: 8 mm Tape & Reel, 1ku reel
Blank for Bulk
Revision Letter
“A” is the revision
Frequency
Temperature Range
“I” Industrial -40ºC to 85ºC
“E” Ext. Industrial -40ºC to 105ºC
“A” Automotive -40ºC to 125ºC
“M” Ext. Automotive -55ºC to 125ºC
1.000000 to 150.000000 MHz
[10]
Spread Percentage
“-” no spread
”A”
“B”
“C”
“D”
“E”
“F”
“G”
“H”
“I”
“J”
“K”
“L”
“M”
“N”
“O”
“P”
Output Drive Strength
“–” Default (datasheet limits)
See Tables 7 to 11 for rise/fall times
“L”
“T”
“A”
“E”
“R”
“U”
“B”
“F”
Package Size
“7” 2.0 x 1.6 mm
“1” 2.5 x 2.0 mm
“2” 3.2 x 2.5 mm
Frequency Stability
“1” for ±20 ppm
“2” for ±25 ppm
“3” for ±50 ppm
Rev. 0.3
Center:
±0.125,
±0.250,
±0.390,
±0.515,
±0.640,
±0.765,
±0.905,
±1.030,
±1.155,
±1.280,
±1.420,
±1.545,
±1.670,
±1.795,
±1.935,
±2.060,
Down:
-0.25
-0.50
-0.78
-1.04
-1.29
-1.55
-1.84
-2.10
-2.36
-2.62
-2.91
-3.18
-3.45
-3.71
-4.01
-4.28
Feature Pin
“E” for Output Enable
“S” for Standby
“N” for No Connect
“D” for Spread Disablel
Spread Type and Profile
“-” Center spread & Triangular (Default)
“H” Center spread & Hershey Kiss
“R” Center spread & Random
“D” Down spread & Triangular
“G” Down spread & Hershey Kiss
“Q” Down spread & Random
Notes:
10.
for
for
for
for
for
for
for
for
for
for
for
for
for
for
for
for
Supply Voltage
“18” for 1.8V ±10%
“25” for 2.5V ±10%
“28” for 2.8V ±10%
“30” for 3.0V ±10%
“33” for 3.3V ±10%
“XX” for 2.5V -10% to 3.3V +10%
Contact SiTime for availability of these spread options at -40 to 105°C, -40 to 125°C or -55 to 125°C temperature ranges
Page 7 of 7
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