USA: RFaxis Inc. has begun mass production of the RFX240 high-power 2.4GHz PA for wireless local area network (WLAN) applications.
The RFX240 is the first of RFaxis' pure CMOS high-power CMOS PA series targeting the rapidly growing wireless access point (AP), Router, Set Top Box (STB), home gateway, hot spot and other wireless infrastructure markets. The RFX240 is pin-to-pin compatible with incumbent solutions available in today’s market, including Skyworks SE2576L, SE2604L and SE2605L, which are all based on significantly more expensive compound semiconductor processes.
The RFX240 is a high power, high linearity power amplifier built on industry-standard bulk CMOS, the lowest-cost semiconductor process ever to implement an RF device. The RFX240 is optimized to provide the functionality of transmit power amplification for IEEE 802.11b/g/n applications in the 2.4GHz frequency range.
It provides 30dB power gain, 26dBm linear output power for OFDM/64QAM with 5V power supply and consumes 30mA less current than competition PAs of the same category. It integrates full-CMOS logic control, on-chip input and inter-stage impedance matching, RF decoupling, as well as a truly directional coupler based power detector for accurate closed-loop power control. The RFX240 is assembled in a compact 3.0x3.0x0.55mm 16-pin Quad Flat No-Lead (QFN) package. Samples are now available.
Tuesday, June 18, 2013
Microchip’s op amps extend battery life with exceptionally low power consumption
USA: Microchip Technology Inc. announced a new nine-member low-power, general-purpose operational amplifier (op amp) family—the MCP647X/8X/9X.
These op amps provide among the industry’s best power consumption for a given gain-bandwidth product, including low quiescent current, to extend battery lifetimes. Additionally, they have exceptionally low leakage current over temperature, up to 125°C, which reduces errors in applications such as sensor conditioning. In combination with features such as input offset voltage of 1.5 mV and space-saving packages as small as SC70 and SOT-23, these op amps are ideal for a broad range of portable applications in the consumer, industrial, automotive and medical markets.
The designers of portable, battery-powered applications are challenged to lower power consumption and reduce cost and board space without compromising on the robustness and accuracy of their signal chains. The MCP647X/8X/9X family of general-purpose op amps provides low supply current, low leakage current over temperature and low input offset voltage in small packages, which offers one of the industry’s best cost-to-performance ratios.
In fact, the 1.5 mV offset voltage offers better precision than the industry standard for general-purpose op amps, without the price premium of high-precision op amps. For applications that have sensors with high output impedance or that go through accelerated life tests at high temperatures, the MCP647X/8X/9X’s low leakage current is particularly important.
These op amps provide among the industry’s best power consumption for a given gain-bandwidth product, including low quiescent current, to extend battery lifetimes. Additionally, they have exceptionally low leakage current over temperature, up to 125°C, which reduces errors in applications such as sensor conditioning. In combination with features such as input offset voltage of 1.5 mV and space-saving packages as small as SC70 and SOT-23, these op amps are ideal for a broad range of portable applications in the consumer, industrial, automotive and medical markets.
The designers of portable, battery-powered applications are challenged to lower power consumption and reduce cost and board space without compromising on the robustness and accuracy of their signal chains. The MCP647X/8X/9X family of general-purpose op amps provides low supply current, low leakage current over temperature and low input offset voltage in small packages, which offers one of the industry’s best cost-to-performance ratios.
In fact, the 1.5 mV offset voltage offers better precision than the industry standard for general-purpose op amps, without the price premium of high-precision op amps. For applications that have sensors with high output impedance or that go through accelerated life tests at high temperatures, the MCP647X/8X/9X’s low leakage current is particularly important.
AVX expands to include glass-encapsulated varistors
USA: AVX Corp. has expanded both its TransGuard and Automotive TransGuard series multilayer varistors to include glass-encapsulated, acid-resistant parts for use in high energy and harsh environment commercial, industrial, and automotive applications.
Exhibiting non-linear, bi-directional, V-I characteristics, both zinc-oxide-based ceramic semiconductor device series provide bi-directional over-voltage protection and EMI/RFI attenuation in a single SMT package. The series also feature multi-strike capability, sub 1nS response to ESD strikes, and excellent solderability.
Ideal for use in harsh environments -- such as those utilizing acid, salt, or chlorite flux -- AVX's glass-encapsulated TransGuard and Automotive TransGuard series varistors are available in three case sizes (1210, 1812, and 2220), four energy ratings (spanning 2-12J) and feature a peak current rating of up to 2000A.
Both series have Ni/Sn-plated terminations, are RoHS compliant, are rated for use in temperatures spanning -55 degrees C to +125 degrees C, and are packaged on 7" or 13" reels.
Exhibiting non-linear, bi-directional, V-I characteristics, both zinc-oxide-based ceramic semiconductor device series provide bi-directional over-voltage protection and EMI/RFI attenuation in a single SMT package. The series also feature multi-strike capability, sub 1nS response to ESD strikes, and excellent solderability.
Ideal for use in harsh environments -- such as those utilizing acid, salt, or chlorite flux -- AVX's glass-encapsulated TransGuard and Automotive TransGuard series varistors are available in three case sizes (1210, 1812, and 2220), four energy ratings (spanning 2-12J) and feature a peak current rating of up to 2000A.
Both series have Ni/Sn-plated terminations, are RoHS compliant, are rated for use in temperatures spanning -55 degrees C to +125 degrees C, and are packaged on 7" or 13" reels.
20kbps to 100kbps communication photocouplers from Toshiba lower costs, power consumption
USA: Toshiba America Electronic Components Inc., (TAEC) announced the launch of two new communication photocouplers – theTLP2301 (20kps) and TLP2303 (100kps).
Supporting RS-232 communication speed of 9.6kbps or 19.2kbps to RS-232C communication speed of 115.2kbps transmission rates for isolated communication interfaces in factory automation devices, air-conditioners, smart meters and more, these new optimal speed photocouplers bring excellent cost/performance ratios and can be driven at a low input current of 1 mA.
Isolated communication interfaces for factory automation devices (such as PLC and inverters), home appliances and housing equipment (such as air conditioners and smart meters) use a wide range of transmission rates to communicate. Until now, photocouplers with optimal speed transmission rates were not available. This forced users to choose either general-purpose transistor couplers, which provide insufficient performance, or 1 Mbps-class IC couplers, which provide the performance needed, but at a very high cost.
Toshiba developed the TLP2301 and TLP2303 to fill this gap in the market. The new photocouplers achieve a high current transfer ratio (IC/IF) and switching under low input current conditions – leading to reductions in power consumption and costs in the wide range of products that use photocouplers.
Supporting RS-232 communication speed of 9.6kbps or 19.2kbps to RS-232C communication speed of 115.2kbps transmission rates for isolated communication interfaces in factory automation devices, air-conditioners, smart meters and more, these new optimal speed photocouplers bring excellent cost/performance ratios and can be driven at a low input current of 1 mA.
Isolated communication interfaces for factory automation devices (such as PLC and inverters), home appliances and housing equipment (such as air conditioners and smart meters) use a wide range of transmission rates to communicate. Until now, photocouplers with optimal speed transmission rates were not available. This forced users to choose either general-purpose transistor couplers, which provide insufficient performance, or 1 Mbps-class IC couplers, which provide the performance needed, but at a very high cost.
Toshiba developed the TLP2301 and TLP2303 to fill this gap in the market. The new photocouplers achieve a high current transfer ratio (IC/IF) and switching under low input current conditions – leading to reductions in power consumption and costs in the wide range of products that use photocouplers.
Toshiba intros 30V power MOSFETs for base stations and servers
JAPAN: Toshiba Corp. announced the introduction of a 30V voltage power MOSFET line-up for general-purpose DC-DC converters used in base stations and servers.
The products use the latest 8th generation low-voltage trench structure and achieve the highest class[Note 1] of low ON-resistance and high-speed switching. Mass production is scheduled to start at the end of June.
The MOSFETs use the 8th generation low-voltage trench structure and achieves top class low ON-resistance. They achieve low internal gate resistance and a low gate capacity ratio (Cgd/Cgs), which contributes to prevention of the self turn-on phenomenon.
The products use the latest 8th generation low-voltage trench structure and achieve the highest class[Note 1] of low ON-resistance and high-speed switching. Mass production is scheduled to start at the end of June.
The MOSFETs use the 8th generation low-voltage trench structure and achieves top class low ON-resistance. They achieve low internal gate resistance and a low gate capacity ratio (Cgd/Cgs), which contributes to prevention of the self turn-on phenomenon.
Medium-power LED lighting remains unstable, declines by only 1 percent; TV backlight declines by approximately 2~4 percent due to China’s policies
TAIWAN: According to LEDinside, a research division of TrendForce, the Q2 supply for medium-power LED for lighting applications remains unstable. While the current market demand still came from warm white LED, the shortage situation won’t be eased until July. Hence, the price of medium-power LED for lighting application has declined by 1~3 percent in this quarter and that of high-power LED has declined by 3 percent as well.
With backlight applications being impacted by the lack of strong demand and the Chinese government’s subsidy on TV market has been ended, TV manufacturers are conservative about the 3Q13 stock, and are less willing to place long term purchase orders. Overall, the prices of LEDs for backlight applications showed a slight decrease, which are below 5 percent.
Whether low-price tablets and Chinese TV subsidy policy can continue, may impact the growth momentum for Q3 backlight market
Although HTC, LG, and Motorola announced to let go of the tablet market, the tablet product owns higher gross margins--which are relatively larger than those of the other 3C products--have managed to attract manufacturers in mobile, PC, TV, and system areas.
These include: Lenovo, HP, Acer, and Google, all of which have released their own tablets. All together with whitebox mobile market, the worldwide tablet shipment in 2013 is forecasted to reach 200 million units. In addition, The highest and lowest prices of LED for tablet applications were $0.06 and $0.033, respectively, which declined by 4 percent.
The price of LED for TV application has started to slow down in this quarter. The average price of single chip 7020 was around $0.103, a 2 percent decline. In addition, the average price of double chip 7020 for premium TV model was $0.17, with this quarter’s highest market price dropping down to $0.2.
After stocking for China’s May Day holiday, the average price of 7030 package used mostly in edge-lid TV was $0.165, which declined by 2 percent this quarter.
2Q13 medium-power LED quoted price declined by only 1 percent
In terms of lighting applications, medium-power LED’s C/P ratio is better than others. Thus, 5630 package is mostly introduced in LED bulbs or tubes. Since Samsung upgraded their product and made adjustments in production lines, it caused the tightened supply situation for 5630 in china, which limited the price decline for medium-power 5630 LED to only 1 percent.
As for high power LED, although its market demand has started to increase, the price is still steadily decreasing because each manufacturer is continuing to release new product specifications. The high power LED price declined by approximately 3 percent in this quarter.
LEDinside viewpoint
Backlight market: Although China’s LED package technology and chip specifications lag behind from those of Korea-based and Taiwan-based package manufacturers, China TV brand manufacturers adopt market segment marketing strategies, such as direct-type LED TV adopted domestic package in those areas with low request for specifications and patents. After Chinese package manufacturers enter the TV supply chain, it will cause more serious oversupply situation for China’s TV backlight market.
Lighting market: As the supply for medium-power 5630 LED is still unstable in June, there seems no noticeable reduction on market price. But many big LED manufacturers are planning to release new high power LED products, thus there might be another price reduction in 3Q13 to boost the market.
With backlight applications being impacted by the lack of strong demand and the Chinese government’s subsidy on TV market has been ended, TV manufacturers are conservative about the 3Q13 stock, and are less willing to place long term purchase orders. Overall, the prices of LEDs for backlight applications showed a slight decrease, which are below 5 percent.
Whether low-price tablets and Chinese TV subsidy policy can continue, may impact the growth momentum for Q3 backlight market
Although HTC, LG, and Motorola announced to let go of the tablet market, the tablet product owns higher gross margins--which are relatively larger than those of the other 3C products--have managed to attract manufacturers in mobile, PC, TV, and system areas.
These include: Lenovo, HP, Acer, and Google, all of which have released their own tablets. All together with whitebox mobile market, the worldwide tablet shipment in 2013 is forecasted to reach 200 million units. In addition, The highest and lowest prices of LED for tablet applications were $0.06 and $0.033, respectively, which declined by 4 percent.
The price of LED for TV application has started to slow down in this quarter. The average price of single chip 7020 was around $0.103, a 2 percent decline. In addition, the average price of double chip 7020 for premium TV model was $0.17, with this quarter’s highest market price dropping down to $0.2.
After stocking for China’s May Day holiday, the average price of 7030 package used mostly in edge-lid TV was $0.165, which declined by 2 percent this quarter.
In terms of lighting applications, medium-power LED’s C/P ratio is better than others. Thus, 5630 package is mostly introduced in LED bulbs or tubes. Since Samsung upgraded their product and made adjustments in production lines, it caused the tightened supply situation for 5630 in china, which limited the price decline for medium-power 5630 LED to only 1 percent.
As for high power LED, although its market demand has started to increase, the price is still steadily decreasing because each manufacturer is continuing to release new product specifications. The high power LED price declined by approximately 3 percent in this quarter.
LEDinside viewpoint
Backlight market: Although China’s LED package technology and chip specifications lag behind from those of Korea-based and Taiwan-based package manufacturers, China TV brand manufacturers adopt market segment marketing strategies, such as direct-type LED TV adopted domestic package in those areas with low request for specifications and patents. After Chinese package manufacturers enter the TV supply chain, it will cause more serious oversupply situation for China’s TV backlight market.
Lighting market: As the supply for medium-power 5630 LED is still unstable in June, there seems no noticeable reduction on market price. But many big LED manufacturers are planning to release new high power LED products, thus there might be another price reduction in 3Q13 to boost the market.
Mouser stocking highest frequency PLL from Analog Devices
TAIWAN: Mouser Electronics Inc. is now stocking the industry’s highest frequency PLL Synthesizer, from Analog Devices.
ADI ADF41020 Microwave PLL Synthesizer is designed to significantly reduce component count and system cost while improving performance in next-generation radio designs.
ADI ADF41020 consists of a low noise, digital phase frequency detector, a precision charge pump, a programmable reference divider, and high-frequency programmable feedback dividers. A complete synthesizer can be implemented if the PLL is used with an external loop filter and VCO (voltage controlled oscillator).
This PLL synthesizer can be used to implement local oscillators as high as 18 GHz in the up-conversion and down-conversion sections of wireless receivers and transmitters. ADF41020 is ideal for use in a variety of applications, including microwave point-to-point and multi-point radios, wireless infrastructure equipment, VSAT (Very Small Aperture Terminal) radios, semiconductor test equipment, radar applications, and private mobile radios.
EV-ADF41020EB1Z is available to evaluate the performance of ADF41020.
ADI ADF41020 Microwave PLL Synthesizer is designed to significantly reduce component count and system cost while improving performance in next-generation radio designs.
ADI ADF41020 consists of a low noise, digital phase frequency detector, a precision charge pump, a programmable reference divider, and high-frequency programmable feedback dividers. A complete synthesizer can be implemented if the PLL is used with an external loop filter and VCO (voltage controlled oscillator).
This PLL synthesizer can be used to implement local oscillators as high as 18 GHz in the up-conversion and down-conversion sections of wireless receivers and transmitters. ADF41020 is ideal for use in a variety of applications, including microwave point-to-point and multi-point radios, wireless infrastructure equipment, VSAT (Very Small Aperture Terminal) radios, semiconductor test equipment, radar applications, and private mobile radios.
EV-ADF41020EB1Z is available to evaluate the performance of ADF41020.
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