Optimized Design for Low Plating Capacitance and ESR
Improves Start-Up and Power Savings for Low Energy Applications
Hermetic Ceramic Surface Mount Package
Fundamental Crystal Design
Part Dimensions:
2.5 × 2.0 × 0.65mm • 9.3742mg
Frequency Range 16 – 52MHz
Operating Temperature Range to -40°C to +125°C
Standard Frequencies – see Page for developed frequencies.
* Check with factory for availability of frequencies not listed.
Tape and Reel Packaging, EIA-418
WiFi, ZigBee, ZigBee RF4CE, Z-Wave
Bluetooth, Bluetooth Low Energy
LoRa, LPWAN, 6LowPan, WLAN
Near Field Communication
Low Drive Chipsets
ISM Band Applications
Applications
Wireless Communications
Low Power MCUs, SoCs, RF ICs
M2M Communications
Description
CTS Model 425W incorporates a high Q quartz resonator and has optimized design parameters for Low ESR and
Load Capacitance [C
L
]. M425W is ideal for supporting commercial and industrial IoT applications using low power
MCUs, portable RF communication ICs and low drive chipsets.
Ordering Information
Model
425W
Mode of
Oscillation
F
Frequency Code
[MHz]
XXX
Tolerance
@ +25°C
3
Temperature
Stability
5
Temperature
Range
C
Load
Capacitance
D
Packaging
R
Mode
Code
Fundamental
F
Code
1
X
2
Y
3
Tolerance
±10ppm
±15ppm
±20ppm
±25ppm
±30ppm
Temp. Range
Code
C
-20°C to +70°C
2
D
-30°C to +85°C
2
I
-40°C to +85°C
3
G
-40°C to +105°C
4
H
-40°C to +125°C
5
Code
R
Packing
3k pcs./reel
Code
Frequency
Product Frequency Code
1
Code
1
X
2
Y
Stability
±10ppm
±15ppm
±20ppm
±25ppm
Code
3
5
6
Stability
±30ppm
±50ppm
±100ppm
Code
M
W
T
V
Capacitance
4pF
5pF
6pF
7pF
Code
K
J
A
L
Capacitance
8pF
9pF
10pF
12pF
Notes:
1]
2]
3]
4]
5]
Refer to document 016-1454-0, Frequency Code Tables. 3-digits for frequencies <100MHz.
Available with all stability codes.
Available with stability codes X, 2, Y, 3, 5 and 6.
Available with stability codes 3, 5 and 6.
Available with stability codes 5 and 6. Contact factory for availability.
Not all performance combinations and frequencies may be available.
Contact your local CTS Representative or CTS Customer Service for availability.
This product is specified for use only in standard commercial applications. Supplier disclaims all express and implied warranties and liability in connection with any use of this
product in any non-commercial applications or in any application that may expose the product to conditions that are outside of the tolerances provided in its specification.
C++ 属于面向对象的编程语言,OOP的思想不必多说,特别对于复杂的软件工程来说,利用OOP绝对是事半功倍,相对于传统的C来说; 当然用C来写单片机程序无可厚非,已经延续了一个传统,从大学时学的开始到工作岗位,好多人都是一直用C来做,但是既然Keil支持C++编译, 可以用C++来编写你的代码,可以利用高级语言来结构化,清晰化你的程序,为嘛不用呢!哈哈,个人看法!下面进入正题: C+...[详细]