#electric-wave filter

[ashwor-blog]

Maxim introduces the video filter MAX9508 based on SmartSleep

Maxim put out MAX9508/MAX9512, first industry possess this Company innovative SmartSleep technical mock standard sharpness video filter. Novel SmartSleep technology is only measuring and is not starting the device until when there are input signal of the video and output load, thus the power consumption of the intelligent control. Use SmartSleep technology, four passway MAX9508 and MAX9512 devices are through closing the electric-wave filter summing amplifier not using the passway, have reduced power consumption greatly. These new video filters adopt TQFN of 3mm x 3mm to capsulate.

The traditional device can't and export the loaded state to open or close selectively according to the input signal, and device those possess when does it judge opening or intelligence closed either. In fact, all passways of those traditional devices must be all opened or all closed. Depend on the input signal and export the loaded existence or not, SmartSleep function can make every single video passway in one of the three kinds of power consumption modes:

1. Standby mode

2. Measure the mode

3. Complete work pattern

Besides saving SmartSleep technology of the power, MAX9508 video filter also supports two-way videos, use and extensive of this device that this makes. MAX9508 can be used in the responsive application of numerous power consumption, including portable DVD player, roof box (STB) And portable multimedia player (PMP) . MAX9508 includes 3 reconstruction filters, 4 video amplifiers and lie and pull open and turn off under one one of the two-way CVBS output ends. Its internal switch can be regarded as 2:1 multiplexer chosen among two-way inputsignal source, this switch can also be used for controlling two-way video signals of CVBS video connection end, and does not need sep switch or electrical relay. The last characteristic is very useful to the portable DVD player, these players often drive and compound the video output and receive the signal input of the external video with same CVBS interface unit (in order to reveal on LCD screen of the player of the portable DVD player) . Two-way CVBS of the device exports all right d.c. compling, and export and can drive up to 2 routes of videos taking ground as reference to support each time, or alternating-current coupling drives the videos of No. one to support.

Having joined a Y/C mixer unit, MAX9512 video filter with SmartSleep technology is specially designed for the walkie multimedia player. It can obtain the composite video signal from luminance and chrominance signal from Y/C to CVBS converter. Similar to MAX9508, two-way CVBS of MAX9512 exports all right d.c. compling, and drive up to videos taking ground as reference of No. 2 to support, or alternating-current coupling drives the videos of No. one to support.

The key characteristic of MAX9508/MAX9512 device is summarized

The videos of No. 4 output each output terminal of video reconstruction filter where SmartSleep power saves the pass-band of technological 6.75MHz and drive up to 2 routes of videos to support 16 fine Pin TQFN (3mm x 3mm) Seal, put the intersection of form and power work for offer overwork protect from 2.7V to 3.6V, MAX9508/MAX9512 can work until - 40 C to +125 the intersection of C and the intersection of car and magnitudes of temperature range, MAX9508/MAX9512 trigger price is $0.59 (1000 sheets arise, American F.O.B.) . There are sample wafers and Evaluation Boards now. The details please visit: http://www.maxim-ic.com/

[jarenski-blog]

TI introduces video amplifier of low power consumption the most of industry

A few days ago, the instrument of Dezhou (TI) Claim to put out two style brand-newly, can help manufacturers to meet the low energy consumption family and demand for the walkie amusement system. THS7365 is that one supports the high definition TV and marks the clear TV, and has 6 passways of fixed electric-wave filter video amplifiers of low power consumption the most of industry. This device is here 5 volts (V) With can reduce the power consumption by 21% and 50% separately, help manufacturers to make the star canonial roof box (STB) who accords with the energy under 3.3 V voltaging With blue mere DVD player. THS7319 is a section of small-scalest 3 passways of video amplifiers to support EDTV. This product compares with similar device, the quiescent current is reduced by 25%, thus can lengthen the life time of battery of the walkie media apparatus.

Key feature and advantage of THS7365

*To high definition and integrating Butterworth's fixed electric-wave filter of 6 steps to mark clear video. The mode of the bypass can realize the high bandwidth up to 250 MHz, support the purely high clear 1080p60 or UWXGA video; *6 passways of work can support to compound at the same time (CVBS) Video, S video and Y'P ' BP'R assembly video; *Under 5V and the intersection of 3.3V and voltage, departure whether 21.6mA and general supply electric current of 20.7mA can realize low power consumption, the canonial apparatus of this pair of stars that will accord with the energy but the speech is of great significance; *Deenergization failure mode can lower to 0.1uA quiescent current, thus can in the intersection of system and idle the intersection of season and the intersection of province and power; *The single power can improve design flexibility to the maximum extent from 2.6 V to the extensive low-voltage work of 5.5 V.

Key feature and advantage of THS7319

*To integrating 3 steps Butterworth's fixed electric-wave filter but saving in space of EDTV; *Low quiescent current and deenergization mode electric current of lower 0.15 uA of every passway 1.1 mA can lengthen the life time of the battery; *1.5 Millimetre x 1.5 millimetres of x 0.40 millimetres of microminiature MicrostarCSPTM can highly reduce the products by more than 30% to capsulate; *The single power can improve design flexibility to the maximum extent from 2.5 V to the extensive low-voltage work of 5.5 V.

[jarenski-blog]

ADI releases four passways of digital isolaters with minimum industry

A few days ago, Analog Devices, Inc. (ADI) Introduce four passways of figure isolating device series ADuM744xes with minimum industry newly, adopt small-scale QSOP of 5mm * 6mm to capsulate (1/4 of the little appearances of size) ,Can isolate four passways of data and powers, reduce the area of the required circuit board by 70% at the same time, cost reduction is 20%. Especially suitable application used for only needing 1kV mean value to isolate the grade of this serial devices, and the requirements for small dimension are higher than isolating the low cost required to design. These new devices have expanded iCoupler(R) of ADI Company The lectotype range of the digital isolation technology products, including the mean value is the products of the segregation grades of 2.5kV and 5kV, the like product with the other suppliers in the industry was compared, the segregation products of ADI have offered more rich and more varied with better characteristic digital isolater choice to user.

About ADuM744x digital isolater

ADuM744x digital isolater series include ADuM7440, ADuM7441 and ADuM7442, offer various dispositions of the data rate with a plurality of passway directions selecting and 1 Mbps to 25 Mbps. The power voltage ranges of these devices can offer the compatibility with the low voltage system from 3.0V to 5.5V, and can realize that cross over the voltage conversion which isolate the protective screen. ADuM744x digital isolater has extremely low power consumption, and the low pulse width is distorted. In addition, each product also has input burrs that interferes with the traffic filter, are used for avoiding receiving outside noise interference. The but the design of small dimension and low cost that ADuM744x product series are specially, it is the competitive digital isolater of 1kV to the mean value, it is not merely the redaction reduced briefly.

[jarenski-blog]

Vishay introduces the new DrMOS device, can be used in the voltage stabilizator in CPU system

A few days ago, Vishay Intertechnology, Inc. was announced, introduced a device of the integrated DrMOS solution in one PowerPAK MLF6x6 was capsulated --- SiC769, this device offered the nchannel MOSFET of the low tension side on high-tension side at the same time, MOSFET driver IC of the extra full-function. SiC769 offers two types directed against 3.3V and 5V control device separately, totally accord with server, desk-top computer, DrMOS norm of the graphic card, work station, game Console and other heavy-duty CPU systematic medium voltage stabilizators. Device make it can exceed 1MHz not to operate the frequency, thus reduce heterogeneous VR topological size and cost.

SiC769 adopts the input voltage of 3V- 16V, can export the highest serial output current up to 35A. The Integrated power MOSFET has optimized the output voltage of 0.8V- 2.0V, the nominal input voltage is 12V. SiC769 can also offer very high power for the fact that ASIC employ under the circumstances that 5V export.

SiC769 advanced gate drive IC receives one PWM from VR control device to input, converts it to the low tension side MOSFET grid driving signal on high-tension side. PWM input is compatible with all control devices, especially support the control device with ternary PWM output function. Drive circuit in the IC can automatic detection light condition of loading, then the FHP in the automatic starting system is operated (SMOD) ,This mode can raise the efficiency under the light loading condition. The time control of inert zone of the adaptation can further raise the efficiency. Protect the function including UVLO, puncture protecting, heat warning function can send out the alarm signal to the system when junction temperature is too high.

Integrated drive IC and power MOSFET have reduced the power consumption, has lightened and divided the relevant parasitic resistant influence of grade of rendering meritorious service rate with high frequency in SiC769. SiC769 has also adopted advanced capsulation, compared with competition technology, have reduced capsulating the power consumption that is hit by 30%. The artificer can optimize the high-frequency switch, improve the transient response, save the cost of the device of the output filter, the most high power density in heterogeneous Vcore employs of concurrent implementation. So can save PCB area, offer more putting the space to good use for the user's key competition technology.

[jarenski-blog]

CM1624: Protective electric-wave filter of microSD interface used for mobile phone

A few days ago, California Micro Devices claimed to put out the particular application microSD (miniature safe figure) used for moving and computing device The interface protects the filtering device CM1624. Popular the intersection of microSD and flash card multi-place used in portable equipment, make user can store or use data at different apparatus more and more. CM1624 protects microSD storage card user interface, makes the static discharge (ESD) Will not damage the card or hardware, and inhibit electromagnetic disturbance (EMI) ,Offer the remarkable digital signal completeness at the same time. It is leading Praetorian III(R) A member of the product series, combine outstanding characteristic and the lowest line capacitance of electric-wave filter together. It is pulled upward the resistance that CM1624 is also integrated, have avoided the mobile phone plated circuit board (PCB) Need extra circuit, and saved more cost of bill of materials.

Particular application microSD interface

The electric-wave filter solution based on inductor has offered the completeness of usable highest digital signal. CM1624 can support the rising / fall time and high-level decay from 700 MHz to 3 GHz range of high clock rate, 5 nSec up to 96 MHz. The CM1624 one base pin distribute to microSD optimize interface standard,and offer + /- 15kV (keep in touch) Exactly shut ESD protective Line 6 EMI to inhibit (accord with IEC 61000-4-2) ,Pack ESD to protect to Vcc a gleam of collinear bubble caps, and is used in two extra not serial ESD diodes in associative functions such as the detection of card,etc.. In addition, CMD already integration 25k ohms has pulled upward the resistance, helps the existence of the detect storage card.

EMI under the limited situation of the electric capacity filters

With using for producing the base band and employing craft geometry of the processor to turn to the narrow scale day by day, systematic working voltage become low too, so data above line the intersection of electric capacity and charge number become the intersection of mobile phone and subject problem that designer faces. MicroSD interface specification makes total condensive load reach 40 pF, and the traditional electric-wave filter framework has occupied the majority of the definite design space. CM1624 has the specification 0V DC electric capacity of 20pF, and low in 12 pF under working voltage --Usable low capacity the most in EMI electric-wave filter designed for microSD interface. Low the intersection of electric-wave filter and line capacitance make the intersection of mobile phone and designer obtain great the intersection of design and freedom in the intersection of PCB and routing and the intersection of revised design and respect.

CM1624-08DE characteristic

--Extremely low line capacitance under working voltage (12 pF) --Remarkable signal completeness, the duration of ascent of 5 nSec, 75 MHz clock rate in 50 ohms environment --& gt with leading industry on all ports; 15 kV contacts ESD to protect --Match particular application, sleeve solution of microSD interface perfectly, it is pulled upward the resistance including integrated

It accords with RoHS standard, accords with the canonial compact type microDFN16 of the industry to capsulate that CM1624-08DE offers.

[jarenski-blog]

The electron introduces the high reliability electric-wave filter researched and developed independently in big Beijing of Xi'an

A few days ago, the electron introduced the high reliability electric-wave filter WKF312803M researched and developed independently in big Beijing of Xi'an. This product adopted SMT technology, and the heat conduction glue that cooperated with the characteristic to be excellent was encapsulated, have high, fine characteristic that power density is higher with low noise of reliability, mainly used in aviation, spaceflight, military electron,etc. field.

The high reliability electric-wave filter WKF312803M accords with the demands for " products detail specification ", screens 100% according to the screening procedure strictly, guarantee that the high reliability of the factory products appears.

More characteristics and advantages of WKF312803M:

*The electromagnetic compatibility index accords with CE102 requirement for GJB151A-97 *Input voltage 16-40V, nominal voltage 28V *The output voltage falls small, high in efficiency *Reachable 30dB at the time of the insertion loss 500KHZ

[jarenski-blog]

Maxim puts out 4 passways, sample at the same time, 24 ADCs

A few days ago, Maxim put out 4 passways, 24, sampled ADC MAX11040 at the same time. Can adopt the chrysanthemum chain to connect reaching 8 blocks of MAX11040, realize 32 passways are sampled at the same time, has simplified system design greatly. MAX11040 adopts the unique interface of very cascade-connected SPI/QSPI/MICROWIRE to realize the above-mentioned multiple channel measurable quantity characteristic, save, pass independent the intersection of chip selection and the intersection of input control and each complicated circuit structure of ADC. Because of using the input control all 8 MAX11040s of chip selection singly, no matter adopt 4 passways or 32 passways, control logic is identical to host processor.

MAX11040 passes 0 to 333& micro; The programmable time delay of s, can compensate the phase shift that the electric-wave filters of the resistance voltage divider, voltage transformer or simulation input end cause. This function combines characteristics such as SFDR of SINAD and 91dB of 90dB,etc., make MAX11040 ideal used in the industrial electric wire netting protection device, medical the intersection of EKG/EEG and apparatus and need in order to change, sample system of passway synchronously accurately from 0.25ksps to the intersection of 64ksps and speed while being other.

In addition, the overvoltage protection function of MAX11040 simulation input end can be up to the voltage of ± 6V (by the simulation of the device in order to consult) Play the protective device, thus has simplified and designed, lowered costs. MAX11040 offers unleaded, 38 pins TSSOP to capsulate.

[jarenski-blog]

RECOM puts out brand-new 20- 50W PowerlinePlus converter

A few days ago, RECOM issued brand-new 20W 50W DC/DC converter series PowerlinePlus, there are six sections of new module now: RPP20-S_D, RPP20-S_DW, RPP30-S_D, RPP30-S_DW, RPP40-S, RPP50-S, adopt RECOM new ICE Technology, it is the lowest that can make the internal heat decrease, and reach most heat-conductions the circumference.

The brand-new converter can offer high-order efficiency at the price lower than the traditional professional converter by a wide margin. According to representing,PowerlinePlus with - the case temperatures of 45 ℃ to +120 ℃working range,built-in and be fully output protective when receivinged of Class B EMC electric-wave filter, satisfiable multiple military affairs, aeroelectronics and applied in industry unique requirement of high-order. PowerlinePlus combines designing and revolutionary integrated air-cooling fin chassis of a high efficiency, offer the higher power within the range of more broad temperature, require less spaces and cost with the grade solution to what these tight severe application that require offered than before at the same time.

RPP20-S_D possesses and inputs the voltage range, bes single or exports selecting, 2kVDC to isolate in one pair of groups at 2:1, the built-in EMC electric-wave filter offers 20 watts of power, and operate with the efficiency up to 90%, by offering the environment from - 45 ℃ to +100 ℃ to operate the temperature range and have no derating, and only adopt the external packing of 2 x 1.2. RPP20-S_DW is similar to RPP20-S_D, but offer ultra broad inputting the voltage range at 4:1.

RPP30-S_D possesses and inputs the voltage range, bes single or exports and selects in one pair of groups at 2:1, 3kVDC isolates, the built-in EMC electric-wave filter offers 30 watts of power, and operate with 92% of the efficiency, offer and operate the temperature range and have no derating from - 45 ℃ to +96 ℃ environment, external packing only 2 x 1.2. RPP30-S_DW is similar to RPP30, offers ultraly and broadly and inputs the voltage range at 4:1.

RPP40-S possesses and inputs voltage range, single output, 3kVDC to isolate at 2:1, the built-in EMC electric-wave filter offers 40 watts of power, and operate with 92% of the efficiency, by offer and operate the temperature range and have no derating from - 45 ℃ to +89 ℃ environmenting, adopt 2 x1.2 external packing.

RPP50-S possesses input, single output of 2:1, 3kVDC isolates, the built-in EMC electric-wave filter offers 50 watts of power, and operate with 91% of the efficiency, by offer and operate the temperature range and have no derating from - 45 ℃ to +81 ℃ environmenting, adopt 2 x1.2 external packing.