Any frequency between 1 MHz and 110 MHz accurate to
6 decimal places
100% pin-to-pin drop-in replacement to quartz-based XO
Excellent total frequency stability as low as ±20 ppm
Operating temperature from -40°C to 85°C. For 125°C and/
or -55°C options, refer to
SiT1618, SiT8918, SiT8920
Low power consumption of 3.5 mA typical at 1.8V
Standby mode for longer battery life
Fast startup time of 5 ms
LVCMOS/HCMOS compatible output
Industry-standard packages: 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
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
SiT8924
and
SiT8925
Ideal for DSC, DVC, DVR, IP CAM, Tablets, e-Books,
SSD, GPON, EPON, etc.
Ideal for high-speed serial protocols such as: USB,
SATA, SAS, Firewire, 100M / 1G / 10G Ethernet, etc.
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.
Table 1. Electrical Characteristics
Parameters
Symbol
Min.
Typ.
Max.
Unit
Condition
Frequency Range
Output Frequency Range
f
1
–
110
MHz
Frequency Stability and Aging
Frequency Stability
F_stab
-20
-25
-50
–
–
–
+20
+25
+50
ppm
ppm
ppm
Inclusive of initial tolerance at 25°C, 1
st
year aging at 25°C, and
variations over operating temperature, rated power supply voltage
and load.
Operating Temperature Range
Operating Temperature Range
T_use
-20
-40
–
–
+70
+85
°C
°C
Extended Commercial
Industrial
Supply Voltage and Current Consumption
Supply Voltage
Vdd
1.62
2.25
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
3.7
3.5
–
–
2.1
1.1
0.2
1.98
2.75
3.08
3.3
3.63
3.63
4.5
4.2
4.1
4.2
4.0
4.3
2.5
1.3
V
V
V
V
V
V
mA
mA
mA
mA
mA
A
A
A
No load condition, f = 20 MHz, Vdd = 2.8V to 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 = GND, Output in high-Z state
Vdd = 1.8V, OE = GND, Output in high-Z state
ST = GND, Vdd = 2.8V to 3.3V, Output is weakly pulled down
̅ ̅̅
ST = GND, Vdd = 2.5V, Output is weakly pulled down
̅ ̅̅
ST = GND, Vdd = 1.8V, Output is weakly pulled down
̅ ̅̅
Contact
SiTime
for 1.5V support
Rev 1.04
January 30, 2018
www.sitime.com
SiT8008B
Low Power Programmable Oscillator
Table 1. Electrical Characteristics (continued)
Parameters
Symbol
Min.
Typ.
–
1
1.3
–
–
Max.
Unit
Condition
LVCMOS Output Characteristics
Duty Cycle
Rise/Fall Time
DC
Tr, Tf
45
–
–
–
Output High Voltage
VOH
90%
55
2
2.5
2
–
%
ns
ns
ns
Vdd
All Vdds. See Duty Cycle definition in
Figure 3
and
Footnote 6
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 mA (Vdd = 3.0V or 3.3V)
IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOH = -2 mA (Vdd = 1.8V)
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)
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
̅ ̅̅
Output Low Voltage
VOL
–
–
10%
Vdd
Input Characteristics
Input High Voltage
Input Low Voltage
Input Pull-up Impedance
VIH
VIL
Z_in
70%
–
50
2
–
–
87
–
–
30%
150
–
Vdd
Vdd
k
M
Startup and Resume Timing
Startup Time
Enable/Disable Time
Resume Time
T_start
T_oe
T_resume
–
–
–
–
–
–
5
130
5
Jitter
RMS Period Jitter
T_jitt
–
–
Peak-to-peak Period Jitter
T_pk
–
–
RMS Phase Jitter (random)
T_phj
–
–
1.8
1.8
12
14
0.5
1.3
3
3
25
30
0.9
2
ps
ps
ps
ps
ps
ps
f = 75 MHz, Vdd = 2.5V, 2.8V, 3.0V or 3.3V
f = 75 MHz, Vdd = 1.8V
f = 75 MHz, Vdd = 2.5V, 2.8V, 3.0V or 3.3V
f = 75 MHz, Vdd = 1.8V
f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz
f = 75 MHz, Integration bandwidth = 12 kHz to 20 MHz
ms
ns
ms
Measured from the time Vdd reaches its rated minimum value
f = 110 MHz. For other frequencies, T_oe = 100 ns + 3 * cycles
Measured from the time ST pin crosses 50% threshold
̅ ̅̅
Table 2. Pin Description
Pin
Symbol
Output Enable
1
OE/ST /NC
̅ ̅̅
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]
Top View
OE/ST/NC
Standby
No Connect
2
3
4
GND
OUT
VDD
Power
Output
Power
Figure 1. Pin Assignments
Notes:
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 1.04
Page 2 of 17
www.sitime.com
SiT8008B
Low Power Programmable Oscillator
Table 3. 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
Storage Temperature
Vdd
Electrostatic Discharge
Soldering Temperature
(follow standard Pb free soldering guidelines)
Junction Temperature
[3]
Min.
-65
-0.5
–
–
–
Max.
150
4
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
Note:
4. Refer to JESD51 for
JA
and
JC
definitions, and reference layout used to determine the
JA
and
JC
values in the above table.
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
Table 5. Maximum Operating Junction Temperature
[5]
Max Operating Temperature (ambient)
70°C
85°C
Maximum Operating Junction Temperature
80°C
95°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 1.04
Page 3 of 17
www.sitime.com
SiT8008B
Low Power Programmable Oscillator
Test Circuit and Waveform
[6]
Vdd
Vout
Test Point
tr
4
Power
Supply
0.1 uF
1
2
3
15pF
(including probe
and fixture
capacitance)
tf
80% Vdd
50%
20% Vdd
High Pulse
(TH)
Period
Low Pulse
(TL)
Vdd
OE/ST Function
1 kΩ
Figure 2. Test Circuit
Note:
6. Duty Cycle is computed as Duty Cycle = TH/Period.
Figure 3. Waveform
Timing Diagrams
90% Vdd
Vdd
Vdd
50% Vdd
[7]
Pin 4 Voltage
T_start
No Glitch
during start up
ST Voltage
T_resume
CLK Output
HZ
T_start: Time to start from power-off
CLK Output
HZ
T_resume: Time to resume from ST
Figure 4. Startup Timing (OE/ ST̅ Mode)
̅ ̅
Figure 5. Standby Resume Timing ( ST̅ Mode Only)
̅ ̅
Vdd
50% Vdd
OE Voltage
T_oe
Vdd
OE Voltage
50% Vdd
T_oe
CLK Output
HZ
T_oe: Time to re-enable the clock output
CLK Output
HZ
T_oe: Time to put the output in High Z mode
Figure 6. OE Enable Timing (OE Mode Only)
Note:
7. SiT8008 has “no runt” pulses and “no glitch” output during startup or resume.
[url=http://tech.hexun.com/2012-07-31/144152466.html]Texas Instruments and the Ministry of Education signed a memorandum of understanding on cooperation again[/url] [p=25, null, left][color=rgb(0, 0, ...
How does Symbol MC1000 make a beep sound in Windows 4.2? I looked at the symbol example CS_ScanSample2 for a long time but couldn't understand how it makes the sound. Please give me some advice....
[table=98%] [tr][td=598][align=right]In order to develop, transmit and utilize wind, solar, hydropower and other green and clean energy on a large scale and effectively change the global energy struct...
As shown in the picture below, I bought a 3W LED for experiment in the market, and also bought a constant current source. I want to search the PDF file of this IC on the Internet to see if anyone know...
I'm building a small project in Nios ii eds 9.0. After a few days, I keep getting this error: the trampolines not yet implemented! Does anyone know what's wrong? The program I wrote is as follows: The...
With the booming electronics industry, vision systems have become a leader in the electronics automation sector. However, the delicate nature of electronic products often affects product yields due...[Details]
On August 24th, media outlets reported, citing sources, that NavInfo, a listed company on the A-share market, is nearing completion in its acquisition of the intelligent driving c...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
As the number of cars increases, environmental pressures are also increasing. At this time, some people are saying that new energy vehicles are energy-efficient and environmentally friendly, and ar...[Details]
With the rapid development of technology, automotive intelligence is increasing at an unprecedented rate. This not only enhances vehicle functionality and comfort, but also places higher deman...[Details]
Introduction to the principles of speech recognition technology
Automatic speech recognition (ASR) technology aims to enable computers to understand human speech and extract the textual inform...[Details]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
Zos Automotive Research Institute released the "2025
Smart Cockpit
Tier 1 Research Report (Domestic Edition)."
This report analyzes the operating conditions of more than a dozen ...[Details]
Based on a survey of more than ten intelligent robot companies, this article sorts out and analyzes the current development status of the intelligent industry and the challenges and differences it ...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
Magna's integrated in-cabin perception system fuses vision and millimeter-wave radar data to detect the presence of passengers, identify stranded children, monitor driver fatigue and vital signs, a...[Details]
We often hear about the precautions for using pure electric vehicles in winter, and many owners even develop relevant strategies, such as adopting a "charge as you go" principle for their vehicles,...[Details]
The range of an electric vehicle is crucial to the driving experience, and range anxiety is a common headache when driving an electric vehicle. Although the latest electric vehicles can achieve a r...[Details]
Electric vehicles are composed of three main components: electric motors, electric motors, and electric vehicles. Maintenance is much simpler than for gasoline-powered vehicles. Maintenance for ele...[Details]
TI Technology Forum
京公网安备 11010802033920号
EEWORLD
