Configurable Four Output, Low Jitter Crystal-less™ Clock Generator
Features
• Low RMS Phase Jitter: <1 ps (typ.)
• High Stability: ±25 ppm, ±50 ppm
• Wide Temperature Range:
- Industrial –40°C to +85°C
- Ext. Commercial –20°C to +70°C
• High Supply Noise Rejection: –50 dBc
• Four Format-Configurable Outputs:
- LVPECL, LVDS, HCSL, LVCMOS
• Available Pin-Selectable Frequency Table
- 1 Pin per Bank for 2 Frequency Sets
• Wide Frequency Range:
- 2.3 MHz – 460 MHz
• 20-Pin QFN Footprint (5.0 mm x 3.2 mm)
• Excellent Shock and Vibration Immunity
• High Reliability
- 20x better MTF than quartz-based devices
• Wide Supply Range of 2.25V to 3.6V
• Lead Free and RoHS-Compliant
• AEC-Q100 Automotive Qualified
General Description
The DSC400 is a four output crystal-less™ clock
generator. It utilizes proven PureSilicon™ MEMS
technology to provide excellent jitter and stability while
incorporating additional device functionality.
The nominal frequencies of the outputs can be identical
or independently derived from common PLLs.
Each output may be configured independently to
support a single-ended LVCMOS interface or a
differential interface. Differential options include
LVPECL, LVDS, or HCSL.
The DSC400 provides two independent select lines for
choosing between two sets of pre-configured
frequencies per bank. It also has two OE pins to allow
for enabling and disabling outputs.
The DSC400 is packaged in a 20-pin QFN (5 mm x
3.2 mm) and is available in extended commercial and
industrial temperature grades.
Block Diagram
CONTROL
CIRCUITRY
BANK 1
MEMS
PLL
OUTPUT
CONTROL
AND
DIVIDERS
BANK 2
FSB1
FSB2
CLK2+
CLK2-
CLK3+
CLK3-
CLK0+
CLK0-
Applications
• Communications and Networks
• Ethernet
- 1G, 10GBASE-T/KR/LR/SR, and FCoE
• Storage Area Networks
- SATA, SAS, Fibre Channel
• Passive Optical Networks
- EPON, 10G-EPON, GPON, 10G-PON
• HD/SD/SDI Video and Surveillance
• Automotive
• Media and Video
• Embedded and Industrial
PLL
OE1
OE2
CLK1+
CLK1-
2016 Microchip Technology Inc.
DS20005612A-page 1
DSC400
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage .......................................................................................................................................... –0.3V to +4.0V
Input Voltage .......................................................................................................................................–0.3V to V
As shown in the figure, there are two quartz crystal oscillator circuits, which can generate oscillating output signals. However, no matter how the frequency of the crystal is modified, the frequency ...
I was looking at the examples that come with mobile, and I was confused about what the two instance handles in the function are: hThisWnd = FindWindow(szAppName, szTitle); if (hThisWnd) { SetForegroun...
It's been a while since I posted. I'm really sorry. I'm taking some time to upload a digital RLC measurement program I made recently.Brothers who are preparing to participate in the competition, you m...
How should we start learning something? We must start with its background. Because only by understanding its background, knowing its history, and knowing the category it belongs to, can we know the re...
HC360.com, March 22, 2006, 9:25 am Source: International Electronics Business News In response to Microchip Technology's patent infringement lawsuit against Zilog in the U.S. Federal District Court i...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
Analog electronics
京公网安备 11010802033920号
EEWORLD
