f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz.
Vdd_YY
f = 75 MHz, Integration bandwidth = 12 kHz to 20 MHz.
Vdd_YY
LVCMOS Output Characteristics
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
Startup Time
Enable/Disable Time
Resume Time
RMS Period Jitter
T_start
T_oe
T_resume
T_jitt
–
–
–
–
–
Peak-to-peak Period Jitter
T_pk
–
–
RMS Phase Jitter (random)
T_phj
–
–
–
–
–
–
87
–
–
–
–
1.8
–
12
14
0.5
1.3
–
–
–
30%
150
–
5
138
5
Jitter
3
3.3
25
30
0.9
2
1.4
2.3
ps
ps
ps
ps
ps
ps
ps
ps
Vdd
Vdd
k
M
ms
ns
ms
Startup and Resume Timing
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]
OE/ST /NC
̅ ̅̅
Top View
VDD
Standby
No Connect
2
3
4
GND
OUT
VDD
Power
Output
Power
GND
OUT
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 1.07
Page 2 of 18
www.sitime.com
SiT1602B
Low Power, Standard Frequency 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]
Note:
3. Exceeding this temperature for extended period of time may damage the device.
Min.
-65
-0.5
–
–
–
Max.
150
4
2000
260
150
Unit
°C
V
V
°C
°C
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 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)
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 1.07
Page 3 of 18
www.sitime.com
SiT1602B
Low Power, Standard Frequency Oscillator
Test Circuit and Waveform
[6]
Vdd
Vout
Test Point
tr
80% Vdd
tf
4
Power
Supply
0.1 uF
1
3
2
15pF
(including probe
and fixture
capacitance)
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.
Figure 7. OE Disable Timing (OE Mode Only)
SiT1602 has “no runt” pulses and “no glitch” output during startup or resume.
During the production of chips, they will go through many processes such as doping, layer addition, photolithography and heat treatment, and each step must meet extremely demanding physical property r...
I just started learning DSP and I don't have a development board. I found that there is a vsm for piccolo example in protues. There are source code and schematics. I created a ccs project, added the s...
The ADC12SC bitThe Timer_A Output Unit 1The Timer_B Output Unit 0The Timer_B Output Unit 1 Which timer output units are used for the following three? A0? A1? A2? CCR1? I really don’t understand. Are t...
Massive MIMO (M-MIMO or MM for short), as the core technology of 5G, is carried on the AAU, and the antenna array inside the AAU is the most important carrier for realizing Massive MIMO.
This article ...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
PCB Design
京公网安备 11010802033920号
EEWORLD
