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Boost Controller IC Drives Solid-State Lighting

April 9, 2008 7:49 am | Product Releases | Comments

Intended for applications such as solid-state lighting where the output is a regulated current instead of a regulated voltage, the TPS40211 non-synchronous boost controller can drive multiple 1W to 5W high-brightness LEDs in series when the input voltage is less than the voltage required. Using a fixed-frequency current-mode control for improved transient

LISTED UNDER: ICs

Radiation-Tolerant FPGAs Offer Multiple Platforms for Space Applications

April 8, 2008 10:46 am | Product Releases | Comments

Xilinx announced the immediate availability of radiation-tolerant Xilinx VirtexR-4QV FPGAs. The new Virtex-4QV family for space applications offers multiple platforms to meet the processing needs of video, audio, radar streams, and packet processing functions.

LISTED UNDER: ICs

FETs Reduce the Size of Wireless Devices

April 7, 2008 5:39 am | Product Releases | Comments

Measuring 1.0 mm × 0.5 mm × 0.25 mm, Avago Technologies’ VMMK-1218 and -1225 field effect transistors (FETs) occupy less than 5 percent the volume of a standard SOT-343 package. The VMMK-1225 supports 0.5 GHz to 26.5 GHz frequency ranges with a noise figure of less than 0.95 dB and 12 dB available gain under 50 ohms conditions at 12 GHz. The FET also offers 23 dBm output third-order intercept and 8 dBm output power.

LISTED UNDER: ICs
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Wideband DAC Provides Low-Power Performance

April 4, 2008 7:39 am | Product Releases | Comments

Optimized for direct digital synthesis of high-frequency and wideband signals in the first Nyquist zone, the 12-bit, 4.0Gsps MAX19693 wideband DAC from Maxim Integrated Products can synthesize signals in the frequency range from DC to nearly 2GHz. Suitable for applications such as wideband communications, radar waveform and digital signal synthesis, the 11mm2 CSBGA device offers an SFDR of greater than 70dBc below 800MHz, and 62dBc at 1500MHz with a wideband-noise spectral density of -164dBm/Hz.

LISTED UNDER: ICs

Driver and Power Amplifier Pair Offers Linear Performance

April 3, 2008 8:23 am | Product Releases | Comments

Mimix Broadband, Inc. introduced a highly linear driver and power amplifier pair covering 12 GHz to 16 GHz offered in RoHs compliant, 3 mm × 3 mm and 4 mm × 4 mm QFN plastic packages. The XP1042-QT driver amplifier provides +38 dBm OIP3, +25 dBm P1dB and 21 dB gain, while the XP1043-QH amplifier achieves +41 dBm OIp3, +32 dBm Psat and 20 dB gain. Features for both include on-chip temperature-compensated power detector, power and gain control through bias adjustment, on-chip ESD protection structures, DC by-pass capacitors, and BCB water coating.

LISTED UNDER: ICs

Low-Power, Large Memory 16-bit MCUs Eliminate Need for External Cap-Touch Components

April 1, 2008 8:07 am | Microchip Technology Inc. | Product Releases | Comments

Microchip Technology added nine new members to the PIC24F 16-bit microcontroller (MCU) family which features low power (2.6 µA standby current) and large-memory (up to 256 KB Flash and 16 KB RAM). This 16-bit MCU includes an integrated Charge Time Measurement Unit (CTMU) peripheral, which

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One-Chip PCIe to UART Serial Bridge Designed for Low Power Consumption

April 1, 2008 7:23 am | Product Releases | Comments

Pericom Semiconductor announced a PCI Express SBridge (serial bridge) product family, offering a one chip device for the CPU to UART (Universal Asynchronous Receiver Transmitter) I/O market. The product family consists of three different UART port count configurations:

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GaN Power Transistor Addresses 2.5 GHz and 3.5 GHz Markets

April 1, 2008 6:27 am | Product Releases | Comments

Consisting of a broadband DC to 4GHz GaN-on-Si HEMT in a thermally-enhanced plastic package, the NPT1004 delivers up to 45W at 28V for high PAR and pulsed applications, up to 5W for 2.5GHz to 3.5GHz WiMAX applications, and 4.5W for 3.3GHz to 3.5GHz WiMAX applications. The Pb-free, RoHS-compliant device suits high peak to average power amplifiers for WiMAX and systems using pulsed waveforms such as in radar, telemetry, and medical applications.

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Single-Channel Regulator Chip Claims High Efficiency and Accuracy

March 31, 2008 10:13 am | Product Releases | Comments

Integrating a switching voltage regulator, 1.5A-rated p-channel power MOSFET, and compensation circuitry in a TO-252S-5 package, the BD9870 single-channel step-down switching regulator has an efficiency of 88%, an output accuracy of ±1.0%, and a bias current of 3mA with a zero standby current. Deployable using only an external coil, diode, and output capacitor, the 900-kHz device can present a 60% board-space savings

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TrenchFET power MOSFET Achieves Lowest On-Resistance

March 31, 2008 8:55 am | Product Releases | Comments

WIth an on-resistance/gate charge FOM of 98 (presented as a record for any VDS = 30V, VGS = 20V SO-8-size part) and a maximum on-resistance of 2.25 mO at a 4.5-V gate drive voltage, the Vishay Siliconix Si7192DP TrenchFET power MOSFET is presented as having the best performance for a device of its type. The n-channel device comes in a PowerPAK SO-8 package be used as the low-side MOSFET in synchronous buck converters, in secondary synchronous rectification, and OR-ing applications.

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32-bit microcontrollers Designed for Flexibility

March 27, 2008 11:50 am | Product Releases | Comments

Combining the performance of an ARM926EJ core, a VFP, a LCD Controller, an Ethernet MAC, and USB, the NXP LPC3200 line of microcontrollers offer embedded designers the ability to reduce on-chip components and maximize power savings. Designed for flexibility in applications that require fast, simultaneous communications, the LPC3000 combines high-performance, low power consumption and a myriad of peripherals.

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DC Motor Pre-driver Saves Power, Reduces Damage

March 27, 2008 11:31 am | Product Releases | Comments

Targeting office automation, telecommunications, consumer and industrial applications, the Allegro A4930 single-phase brushless DC motor pre-driver provides outputs that can drive N-Channel MOSFET H-Bridges with voltage ranges from 8V to 36V. Motor speed is regulated by either PWM or external analog voltage with programmable minimum speed and maximum motor current. Synchronous rectification is employed in the PWM off-cycle to reduce power dissipation, and startup current can be ramped up for reduced supply current surges and lock detection along with auto restart functions to reduce damage due to motor overheating.

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Audio Processor Chip Integrates Bluetooth for Mobile Phone Applications

March 27, 2008 10:06 am | Product Releases | Comments

CSR’s MusiCore1 single-chip stereo audio processor with Bluetooth overcomes the limitations of a phone CPU in handling both audio and voice processing. It supports decoding of all mainstream music file formats including MP3, AAC, AAC+, WMA and SBC, and its DSP architecture reduces the power required to process audio files: 5.25 mW for an MP3 file, compared to

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DSCs Integrate 16-bit Audio DAC

March 27, 2008 8:33 am | Microchip Technology Inc. | Product Releases | Comments

Targeting embedded applications requiring audio functionality, 28-pin and 44-pin dsPIC 16-bit DSCs incorporate a dual-channel, 100ksps, 16-bit audio DAC module as well as 16 kB RAM (2 Kbytes of dual-port RAM) with 64 kB and 128 kB flash optional in the dsPIC33 model. Features of the DSP-capable device include two analog comparators, selectable 10-bit or 12-bit ADC, and a

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Adjustable TFT Accepts Wide Input

March 27, 2008 8:00 am | Product Releases | Comments

Offering fully adjustable outputs, the dual-channel LTC3524 BIAS and white-LED driver can generate up to 25mA at 6V for the AVDD channel, and up to 2mA at 20V and -20V for the respective VGH and VGL bias requirements with controlled power-up/power-down sequencing. Able to operate at up to 90 percent with voltages from 2.5V to 6V, the 4mm2 QFN-packaged synchronous rectification device can power up to 10 white LEDs (5 per channel) while offering a dimming ration of up to 200:1.

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