Modes of Operation and Pin-outs ................................................................................................................................................ 6
Pin-out Top Views................................................................................................................................................................. 6
Test Circuit Diagrams for LVCMOS and Clipped Sinewave Outputs ........................................................................................... 7
Frequency Stability ............................................................................................................................................................. 11
Output frequency and format .............................................................................................................................................. 11
Output Frequency Tuning ................................................................................................................................................... 11
Pin 1 Configuration (OE, VC, or NC) .................................................................................................................................. 12
Control Voltage Bandwidth ................................................................................................................................................. 15
Pull Range, Absolute Pull Range ............................................................................................................................................... 16
I
2
C Control Registers ................................................................................................................................................................. 21
Register Address: 0x00. Digital Frequency Control Least Significant Word (LSW) ............................................................ 21
Register Address: 0x01. OE Control, Digital Frequency Control Most Significant Word (MSW) ......................................... 22
Register Address: 0x02. DIGITAL PULL RANGE CONTROL ............................................................................................ 23
Register Address: 0x05. PULL-UP DRIVE STRENGTH CONTROL .................................................................................. 24
Register Address: 0x06. PULL-DOWN DRIVE STRENGTH CONTROL ............................................................................ 25
Serial Interface Configuration Description.................................................................................................................................. 26
Serial Signal Format .................................................................................................................................................................. 26
Parallel Signal Format................................................................................................................................................................ 27
Parallel Data Format .................................................................................................................................................................. 27
I
2
C Timing Specification ............................................................................................................................................................. 29
I
2
C Device Address Modes ........................................................................................................................................................ 30
Schematic Example ................................................................................................................................................................... 31
Dimensions and Patterns ........................................................................................................................................................... 32
Ordering Information .................................................................................................................................................................. 34
Rev 0.60
Page 2 of 36
www.sitime.com
SiT5357
60 to 220 MHz,
±0.1
to
±0.25
ppm
Elite Platform™ Precision Super-TCXO
Electrical Characteristics
PRELIMINARY
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 Vdd
Table 1. Output Characteristics
Parameters
Output Frequency Range
Duty Cycle
Rise/Fall Time
Output Voltage High
Output Voltage Low
Output Voltage Level
Frequency Stability over Temperature
Frequency vs. Temperature Slope
Dynamic Frequency Change to
Temperature Ramp
Initial Tolerance
24-hour holdover stability
Hysteresis Over Temperature
Symbol
F
DC
Tr, Tf
VOH
VOL
V_out
F_stab
ΔF/ΔT
F_dynamic
F_init
F_24_Hold
F_hys
Min.
60.000001
45
–
90%
–
0.8
-0.1
–
–
-1
-0.28
–
–
–
Supply Voltage Sensitivity
Output Load Sensitivity
One-Day Aging
One-Year Aging
20-Year Aging
Frequency Stability over Temperature
Frequency vs. Temperature Slope
Dynamic Frequency Change during
Temperature Ramp
Initial Tolerance
24-hour holdover
Supply Voltage Sensitivity
Output Load Sensitivity
One-Day Aging
One-Year Aging
20-Year Total Stability
Start-up Time
First Pulse Accuracy
F_Vdd
F_load
F_1d
F_1y
F_20y
F_stab
ΔF/ΔT
F_dynamic
F_init
F_24_Hold
F_Vdd
F_load
F_1d
F_1y
F_20y
T
T_start
T_stability
–
–
–
–
–
–
-0.2
0.25
–
–
-1
-0.32
–
–
–
–
–
-4.6
–
–
±2.5
±2
±1
±3
±1
–
5
10
Typ.
–
–
1
–
–
–
–
±2.5
±0.021
–
–
±15
±15
±10
±2.5
±1
±1
±3
±0.5
±1
–
–
±8
±0.07
–
Max.
220
55
–
–
10%
1.2
+0.1
–
–
+1
+0.28
–
–
–
–
–
–
–
–
–
+0.2
+0.25
–
–
+1
+0.32
–
–
–
–
–
+4.6
–
–
Unit
MHz
%
ns
Vdd
Vdd
V
ppm
ppb/°C
ppb/s
ppm
ppm
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppm
ppm
ppm
ppm
ppb/°C
ppb/s
ppm
ppm
ppb
ppb
ppb
ppb
ppm
ppm
ms
ms
0.5C/min temperature ramp rate
Initial frequency at 25°C inclusive of solder-down
shift at 48 hours after 2 reflows
Per Stratum 3 definition
Vdd ±5%
LVCMOS output, 15 pF ±10%
Clipped sinewave output, 10kΩ, 10 pF ±10%
After 30-days of continued operation
At 25°C
Stratum 3 per GR-1244
Time to first pulse, measured from the time Vdd
reaches 90% of its final value
Time to first accurate pulse within rated stability,
measured from the time Vdd reaches 90% of its final
value
0.5C/min temperature ramp rate
Initial frequency at 25°C inclusive of solder-down shift
at 48 hours after 2 reflows
Per Stratum 3 definition
-40 to 105C
-40 to 85C
-20 to 70C
Vdd ±5%
LVCMOS output, 15 pF ±10%
Clipped sinewave output, 10kΩ, 10 pF ±10%
After 30-days of continued operation
At 25°C
At 25°C
Referenced to (fmax + fmin)/2 over the specified
temperature range
10% - 90% Vdd
I
OH
= -6 mA, (Vdd = 3.3 V, 3.0 V, 2.8 V, 2.5 V)
I
OL
= 6 mA, (Vdd = 3.3 V, 3.0 V, 2.8 V, 2.5 V)
Measured peak-to-peak swing at any Vdd
Referenced to (max frequency + minimum
frequency)/2 over the specified temperature range
Condition
Frequency Coverage
LVCMOS Output Characteristics
Clipped Sinewave Output Characteristics
Frequency Stability - Stratum 3+ Grade
Frequency Stability - Stratum 3 Grade
Start-up Characteristics
Rev 0.60
Page 3 of 36
www.sitime.com
SiT5357
60 to 220 MHz,
±0.1
to
±0.25
ppm
Elite Platform™ Precision Super-TCXO
Table 2. DC Characteristics
Parameters
Supply Voltage
Symbol
Vdd
Min.
2.25
2.52
2.7
2.97
Current Consumption
OE Disable Current
Operating Temperature Range
IDD
I_od
T_use
–
–
-20
-40
-40
Typ.
2.5
2.8
3.0
3.3
Max.
2.75
3.08
3.3
3.63
Unit
V
V
V
V
mA
mA
°C
°C
°C
PRELIMINARY
Condition
Contact
SiTime
for 2.25V to 3.63V continuous supply
voltage support
Supply Voltage
Current Consumption
–
45
44.5
–
–
–
–
Temperature Range
+70
+85
+105
F = 98.304 MHz, No Load
OE = GND, output is weakly pulled down
Extended Commercial
Industrial. Contact
SiTime
for 105
°C
support
Extended Industrial
Table 3. Input Characteristics
Parameters
Input Impedance
Input High Voltage
Input Low Voltage
Pull Range
PR
Symbol
Z_in
VIH
VIL
Min.
–
70
–
Typ.
100
–
–
Max.
–
–
30
Unit
kΩ
%
%
Internal pull up to Vdd
Condition
Input Characteristics
–
OE Pin
Frequency Tuning Range – Voltage Control or I
2
C mode
±6.25, ±10, ±12.5, ±25, ±50, ±80,
±100, ±125, ±150, ±200, ±400,
±600, ±800, ±1200, ±1600,
±3200
90%
–
10
–
Positive
–
2
ppm
Voltage Control Characteristics
Upper Control Voltage
Lower Control Voltage
Control Voltage Input Impedance
Control Voltage Input Bandwidth
Frequency Change Polarity
Pull Range Linearity
Input Voltage Low
Input Voltage High
Output Voltage Low
Output Current High
Leakage in high impedance mode
Input Hysteresis
Input Capacitance
Rise Time
Fall Time
VIL
VIH
VOL
IOL
I_leak
V_hys
C_in
Tr
Tf
VC_U
VC_L
VC_z
VC_c
–
–
–
10
0.5
–
–
–
–
–
–
–
–
–
–
–
–
10%
–
–
–
0.3
–
0.4
–
24
0.4
0.3
3
120
60
75
Vdd
Vdd
MΩ
kHz
%
V
V
V
mA
µA
V
V
pF
ns
ns
ns
Vdd = 3.3V, 30% to 70%
Vdd = 2.5V, 30% to 70%
0.1 Vdd< VOUT < 0.9 Vdd
Vdd = 3.3V
Vdd = 2.5V
Contact
SiTime
for other input bandwidth options
I C Interface Characteristics, 1 MHz, 200 Ohm, 550 pF (Max I
2
C Bus Load)
–
0.7
–
21
5.5
0.2
0.2
–
–
30
40
Rev 0.60
Page 4 of 36
www.sitime.com
SiT5357
60 to 220 MHz,
±0.1
to
±0.25
ppm
Elite Platform™ Precision Super-TCXO
Table 4. Jitter & Phase Noise
Parameters
RMS Phase Jitter (random)
T_phj
–
Spurs
RMS Period Jitter
Peak Cycle-to-Cycle Jitter
1 Hz offset
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
1 MHz offset
5 MHz offset
T_jitt
T_jitt_cc
–
–
–
–
–
–
–
–
–
–
–
0.30
-94
2
10
-54
-82
-104
-126
-132
-135
-149
-155
–
–
–
–
Phase Noise
–
–
–
–
–
–
–
–
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ps
dBc
ps
ps
Symbol
Min.
Typ.
Max.
Jitter
–
0.30
–
ps
Unit
PRELIMINARY
Condition
f = 98.304 MHz, Integration bandwidth = 12 kHz to 20
MHz
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20
MHz
f = 98.304 MHz, 12 kHz to 5 MHz offsets
f = 98.304 MHz per JESD65 standard
f = 98.304 MHz per JESD65 standard
f = 98.304 MHz, TCXO and DCTCXO modes, and
VCTCXO mode with ±6.25 ppm pull range
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
Storage Temperature
Continuous Power Supply Voltage Range (Vdd)
Human Body Model (HBM) ESD Protection
Soldering Temperature (follow standard Pb-free
soldering guidelines)
Junction Temperature
[1]
Note:
1. Exceeding this temperature for an extended period of time may damage the device.
[size=14px]I want to make a display screen recently. I saw on Taobao that OLED is normally controlled by SPI/IIC, but there is something I don't understand about the pins. [/size] [size=14px]Style 1: ...
I imported the cortex-m0 firmware file into ida, but it says that the entry cannot be found. I don't know if anyone has done the reverse engineering of cortex-m0, and there is no information on the In...
A car is a complex multi-degree-of-freedom vibration system. The key to quantitatively analyzing and evaluating ride comfort lies in building an accurate dynamic model. An accurate dynamic model can h...
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]
Ever since the Tesla fire incident, electric cars, already known for their poor reputation, have been subjected to even more scathing criticism. Despite this, many people are still willing to buy t...[Details]
Definition of interactive projection system:
Interactive projection systems, also known as multimedia interactive projection, are available in floor, wall, and tabletop interactive projection....[Details]
According to foreign media reports, secondary battery materials company POSCO Future M announced that it has successfully developed two experimental (prototype) positive electrode materials for the...[Details]
On August 21st, Zhiyuan Robotics revealed at its first partner conference that it expects shipments to reach thousands of units this year and tens of thousands next year. The company hopes to reach...[Details]
This paper proposes a temperature real-time transmission and display solution based on LED optical data transmission, with Jingwei Yager low-power FPGA HR (Yellow River) series as the main controll...[Details]
Industrial computers with GPUs leverage powerful parallel processing to build deep learning models to analyze and respond to optical inputs. The systems develop an understanding of visual data to i...[Details]
A human-machine interface (HMI) refers to the platform used by people to operate a PLC. This platform provides an interface between programs and humans, serving as a medium for information transmis...[Details]
Recently, Joyson Electronics has made positive progress in the core technology research and development of the robot's "brain and brain" and key components, and launched the industry's first integr...[Details]
A tubular motor is an electric motor that is typically used to control the movement of machines and equipment. Tubular motors are generally divided into two categories: linear tubular motors and ro...[Details]
A scale, a large, ground-mounted scale, is typically used to measure the tonnage of truck cargo. It's the primary weighing device used in factories, mines, and businesses for bulk cargo measurement...[Details]
With the gradual popularization of new energy vehicles in recent years, more and more people have been able to access and purchase electric vehicles. The structure of electric vehicles is composed ...[Details]
Compiled from semiengineering
The industry is increasingly concerned about power consumption in AI, but there are no simple solutions. This requires a deep understanding of software and ...[Details]
introduction
The OMAP-L138 dual-core processor is a new generation of low-power single-chip systems (SoCs) from TI. It is widely used in communications, industrial, medical diagnostic, and aud...[Details]
In microwave amplification circuits, the power chip is the core of the entire circuit. A large number of semiconductor devices in the chip will generate a lot of heat when working. If the heat diss...[Details]
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
