[introduction]The brilliant that need branch brace up it is oscillator of crystal of a kind of active, through distributing the oscillation signal in crystal oscillator into two phasic and opposite output signal, magnify through needing branch circuit undertakes enlarge and processing, the poor component that produces stability outputs signal. The brilliant that need branch brace up have better interference rejection capacity, can provide stabler, more accurate clock signal, apply extensively at automation of electron of center of communication network, data, car, industry, test to measure, the domain such as medical treatment equipment.

The brilliant that need branch brace up it is oscillator of crystal of a kind of active, through distributing the oscillation signal in crystal oscillator into two phasic and opposite output signal, magnify through needing branch circuit undertakes enlarge and processing, the poor component that produces stability outputs signal. The brilliant that need branch brace up have better interference rejection capacity, can provide stabler, more accurate clock signal, apply extensively at automation of electron of center of communication network, data, car, industry, test to measure, the domain such as medical treatment equipment.

Graph 1 difference divides brilliant brace up

The brilliant that need branch brace up mode of commonly used output

1) LVPECL mode

LVPECL (Low Voltage Positive Emitter-Couple Logic, low voltage is blasting off extremely coupling is logistic) it is one of main output that need branch. It is passed avoid transistor saturation, achieve rapidder switch rate, deploy constant current source driver. Because big voltage swings (it is 600-1000mV normally) , LVPECL is had shake outstandingly function, output low noise signal thereby, apply to PON, show card of network of card, smooth module, intelligence to wait.

Graph 2 LVPECL mode outputs a structure

LVPECL by PECL (Positive Emitter-Coupled Logic, of use 5V power source blasting off extremely coupling logic circuit) evolve and come. The output structure of PECL circuit includes a poor cent to be opposite be in charge of and follow to shooting implement. Output is shot along with implement work inside limits of positive electricity source, dc electric current exists from beginning to end, be helpful for raising switch rate, those who keep faster pass time. The standard output of LVPECL is come through be being pulled on 50 Ω (VCC-2V) n, if pursue,2 are shown.

2) LVDS mode

LVDS (Low Voltage Differential Signaling) can offer low power comsumption and low electromagnetism interference at the same time (EMI) combination, because voltage amplitude is lesser (it is 350mV normally) , divide output than LVPECL difference mode power comsumption is lower, laden impedance divides on-line electric current not to exceed 4mA commonly for the difference of 100 Ω , make its suffer noise effect not easily, in phonic video processor, server, road by implement in waiting for application with switching equipment very important.

Mode of graph 3 LVDS outputs a structure

LVDS is the technology of the signal that need branch of a kind of low amplitude, it makes signal can divide PCB line to be opposite in difference or transmit with the rate of 100 Mbps on cable evenly, its are low voltage extent, low the character that voltaic drive output makes its have low noise, low power comsumption. LVDS standard outputs load to distribute a form for difference, impedance is 100 Ω , if pursue,3 are shown.

3) HCSL mode

HCSL is signal of poor cent of a kind of high speed, work in inferior tension level normally, begin to be used at high speed in 90 time end serial computer is patulous bus line standard (PCI Express) referenced clock. Its characteristic includes extremely low shake and power comsumption, make this kinds of brilliant brace up serial communication, clock allocates the high speed that uses extensively at systematic interior and the tall to demand of speed, power comsumption, performance setting such as data access.

Mode of graph 4 HCSL outputs a structure

The brilliant that need branch brace up advantage

The brilliant that need branch brace up the advantage basically reflects in:

1) interference rejection capability is high:

The brilliant that need branch brace up use the means that need branch to undertake signal is generated, bring in input and output the signal that need branch is used to transmit between the foot, to the electromagnetism in the environment interference has stronger counteractive capacity. Carry brilliant at sheet relatively brace up, the brilliant that need branch brace up can pass what losing polarity is mutual and quits, weaken noise to disturb the influence of pair of clock signal.

2) clock shakes small:

Can reduce clock signal effectively shake, promote the stability of signal and precision, enhance systematic performance and stability then.

3) improve clock signal to transmit quality:

Higher signal quality can be offerred in clock signal transmission process, can decrease in all the influence of modular noise, the loss that reduces signal effectively to transmit and lack fidelity, increase the dependability that signal transmits and stability.

4) increase noise allowance:

Can increase the noise allowance of clock signal, offer bigger clock signal range, those who drop clock signal is lack fidelity and shake, conduce to the integrality that carries signal and accuracy.

The brilliant that need branch brace up application

The poor Zhen Ping that divide brilliant lends his the advantage, apply at many domains:

Communication system: Application reachs transmission system at equipment of wireless communication, network, the stability that ensures clock signal and frequency are referenced, promote data transmitted accuracy and reliability thereby.

Data center facility: In the equipment such as server and data storage, the brilliant that need branch brace up offer accurate clock synchronism and data to transmit, the stability that ensures gather into one of computer science department moves with data accuracy.

Car electron: For engine control, car carries recreation and navigation system to wait offer accurate clock and frequency control, ensure the stability of car electron system and reliable.

Industrial automation: In system of industrial automation control, include PLC, robot and sensor to wait, the brilliant that need branch brace up the clock signal that provides stability and exact time are measured, assure systematic precision and dependability.

The test measures equipment: Apply at among them clock, tally, frequency meter to wait, ensure those who check a result is accurate with stability.

Medical treatment equipment: Collect circuit to provide the support of accurate stability for clock and data, ensure of medical treatment data accurate and reliable.

The brilliant needing branch of old general technology brace up the advanced IC of shirt-sleeve and own research and development and high quality chip, not only function index is outstanding, still rely on persistent innovation iteration ability, ensure advanced sex of the technology and applicable extensive sex. Adopt elaborate power source government and administrative circuit design, old general difference divides brilliant brace up in keep high-powered while, be controlled effectively and supply the firm stability of catenary what realized cost, offer highly competitive alternative for the user.

Graph difference of technology of 5 old general divides brilliant brace up range of products

The domain is transmitted in high speed data, digital signal processor (DSP) dot of referenced clock frequency is 156.25MHz commonly, its interior passes Suo Xianghuan (PLL) this fundamental frequency times frequency, generate the clock signal that matchs with data changeover rate, divide brilliant to difference at the same time brace up application put forward miniaturization, low power comsumption (do not exceed 100mA) wait for demand. Old general faces the market, offer the solution with superior performance, 156.25MHz difference divides brilliant brace up support not only 3225, 2520 mainstreams enclose dimension, and power comsumption is low to 80mA the following, if the voltage amplitude of DSP allows, old general still can offer the LVDS with lower power comsumption to export version, farther contented market is right the demand of energy-saving and efficient product.

156.25MHz needs the application in module of the Zhen Zaiguang that divide brilliant

Enclothe with comprehensive frequency, diversiform output option, outstanding lukewarm accuse stability, low power comsumption character and super- low shake expression, old general difference divides brilliant brace up show a high flexibility below different application setting and dependability, apply extensively at network of net of SONET/SDH, thousand aether, serial ATA, PCI-Express, memery block region, fiber-optic passageway, industry controller, test and measure, the domain such as fiber-optic passageway and communication. Calculate the ceaseless progress of the technology such as force as AI, old general difference divides brilliant brace up will get applied inside more extensive field, the bitter fleabane break out of industry of the artificial intelligence that help strength is exhibited.

Old general technology is in when frequency domain spade husbandry is close 20 years, already built cover congruent stage tall firm clock (Crystal, SPXO, TCXO, OCXO, Clock Module, Timing Server) , the catenary of full-time bell product of chip of much breed clock (RTC, BUFFER, 1588, the chip such as All-Silicon OSC) , can offer one-stop clock solution. Old general product from research and development, production, measure consign eventually, whole journey realizes own control, it is global minority has dimensions to turn one of firms that provide product of tall firm clock and capability of integral clock solution.

Future, old general technology will continue to deepen technical innovation, drive clock product intelligence to change, the tide of science and technology such as net of couplet of artificial intelligence of prep close behind, content, 5G, with essence of life solution of accurate, efficient clock is endowed with can all trades and professions, build stable and reliable future world in all, create greater value for the user!

 

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