In China, Taiwan, Japan: Tel: 1-603-598-0075 • In Korea, Singapore, Australia, India: Tel: 1-203-853-4433 • Fax: 1-203-849-1423
Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice.
No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
www.vectron.com
J-Type Voltage Controlled Crystal Oscillator
Pin Information
Table 1. Pin Function
Pin
Symbol
1
1
2 (5)
3
4
1
5 (2)
6
V
C
N.C.
GND
Output
Tri-State
V
DD
Function
VCXO Control Voltage
No User Connection
Case Ground
VCXO Output
TTL Low to Disable Output. TTL High or Float to Enable Output.
Power Supply Voltage (3.0 V
±10%,
3.3 V
±10%
or 5.0 V
±10%)
6
5
4
TOP VIEW
1
2
3
1. Alternate pin configuration for tri-state control on pin2. Alternate configuration is indicated by the last letter of the code “D” as indicated in table 6.
Performance Characteristics
Table 2. Electrical Performance
Parameter
Supply Voltage
1
Symbol
V
DD
I
DD
Minimum
0.9* V
DD
Typical
V
DD
Maximum
1.1* V
DD
Units
V
mA
V
Supply Current
Output Voltage Levels
Output High
Output Low
Transition times
Rise Time
Fall Time
Duty Cycle
3
4
2
2
10 mA + 0.25 mA/MHz Typical
0.8*V
DD
0.1* V
DD
5.0
5.0
45
183E-6
50
55
155.52
V
OH
V
OL
T
R
T
F
D
f
0
APR
V
C
V
0
I
C
5
V
ns
ns
%
MHz
ppm
V
V
µA
kHz
ppm/V
dBc/Hz
Nominal Output Frequency
Absolute Pull Range
Control Voltage
Center Voltage
See Part Numbering and APR Section
0
V
DD
Please Contact VTI for Details
-1
10
150
Contact VTI for Phase Noise Specifications
1
Leakage Current of Control Input
Control Voltage Bandwidth (-3 dB, V
C
=0.5*V
DD
)
Gain Slope @ V
0
Phase Noise
BW
∆f/∆V
C
φ
N
1. A 0.1
µF
low frequency tantalum bypass capacitor in parallel with a 0.01
µF
high frequency ceramic capacitor is recommended.
2. Figure 1 defines these parameters. Figure 2 illustrates the equivalent 5-gate TTL load and operating conditions under which these parameters are specified and tested.
3. Duty cycle is defined as (on time÷period), with V
S
= 1.4 for TTL or V
S
= 2.5 V for CMOS, per Figure 1.
4. Other frequencies may be available, please contact factory with your special requirements.
5. Wider bandwidth versions are available, please contact VTI for details.
T
V
T
F
R
I
D D
OH
650
Ω
6
2
5
3
V
V
S
V
DD
OL
+
-
.
1
µ
F
. 0 1
µ
F
I
C
V
C
1
4
15pF
1.8k
On Time
0V
Period
+
-
Figure 1. Output Waveform
Figure 2. Output Test Conditions (25±5°C)
±
A J-Type VCXO with an APR of +/-50 ppm will track a +/-50
ppm reference source over all operating conditions. The
same device will typically demonstrate a Total Pull
capability of 150 to 350 ppm.
Absolute Pull Range (APR) is
specified by the fourth character of the product code in Table
6.
Please contact VTI for the APR Application Note.
Absolute Pull Range (APR) Specification
The frequency deviation of the J-Type VCXO is specified in
terms of Absolute Pull Range (APR). APR provides the user
with a guaranteed specification for minimum available
frequency deviation over all operating conditions. Operating
conditions include operating temperature range, power supply
variation, differences in output loading and changes due to
aging.
Oscillator Aging
Quartz stabilized oscillators typically exhibit a small shift in
output frequency during aging. The major factors which lead to
this shift are changes in the mechanical stress on the crystal
and mass-loading of foreign material on the crystal.
I've been learning FPGA recently. The tutorial that comes with the development board I bought is only in PDF version. Moreover, there are only a few text explanations in the document tutorial, and the...
The MSP430 LaunchPad development board purchased in group purchase for RMB 25 does not come with a touch panel, please note.Due to my personal work error, the LaunchPad I used for taking photos was no...
[size=4][b][font=微软雅黑][color=#000000]The event has ended. [/color][/font][/b][url=https://bbs.eeworld.com.cn/thread-533803-1-1.html][b]Click here[/b][/url][b][font=微软雅黑][color=#000000]to view the awar...
EEWORLD社区ST Sensors & Low Power Wireless Technology Forum
CIRCUIT FUNCTION AND BENEFITSThe circuit shown in Figure 1 uses the AD5292 digiPOT+ series digital potentiometer, the ADA4091-2 dual op amp, and the ADR512 voltage reference to provide a low cost, hig...
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]
1. Equipment Overview
Shell-and-tube heat exchangers are a common heat exchange device used in chemical evaporation and heating equipment. Currently, the tubesheets of shell-and-tube heat exch...[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]
As the main model among new energy vehicles, pure electric vehicles have received strong support and encouragement from the country in recent years, and their development is changing with each pass...[Details]
White light LEDs are voltage-sensitive devices. In actual operation, their upper limit is 20mA. However, the current often increases due to various reasons during use. If no protective measures are...[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]
The Automotive Testing and Quality Assurance Expo (ATE 2025) will open on August 27th. At the expo, Rohde & Schwarz (R&S) will showcase six automotive testing solutions, themed "Intelligently Drivi...[Details]
Since its invention in the mid-1940s, the microwave oven has evolved from a humble beginning to commercial use, entering homes in the 1960s and rapidly gaining popularity. Its basic functionality a...[Details]
The difference between a series inverter and a parallel inverter is that they use different oscillation circuits. A series inverter connects L, R, and C in series, while a parallel inverter connect...[Details]
With growing environmental awareness, the continuous improvement of three-electric technology and the increasing deployment of infrastructure such as charging stations, the electrification of new e...[Details]
Nascent Micro is launching devices covering a wide range of power applications, including gallium nitride (GaN) drivers, dual-channel automotive drivers, and battery protection MOSFETs.
...[Details]
introduction
With the development and widespread use of integrated circuits in power electronics design, electronic products are trending towards smaller sizes, more components, and greater fu...[Details]
Driven by business opportunities such as access to new markets and government initiatives like the Belt and Road Initiative, global expansion has become a significant trend for Chinese companies. C...[Details]
Amid the increasing complexity of electronic system power management,
power architecture design
is undergoing a paradigm shift from experience-driven to tool-enabled.
Analog
Devices...[Details]
While aberration theory is a vast subject, a basic understanding of some fundamental concepts can make it easier to understand: spherical aberration, astigmatism, field curvature, and chromatic abe...[Details]
FPGA/CPLD
京公网安备 11010802033920号
EEWORLD
