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Written by Administrator
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Saturday, 19 November 2005 |
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Maxim Integrated Products Inc. introduced the MAX2055, which the company says is the industry's first high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA). The MAX2055 integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. The MAX2055 is optimized to deliver IF frequencies from 30 MHz to 300 MHz. It is ideal for GSM, DCS/PCS, EDGE, iDEN, PHS, cdma2000, and WB-CDMA multicarrier and single carrier base-station applications. The MAX2055 delivers 23 dB of gain range with ±0.2 dB accuracy over the full temperature range. OIP3 performance is 40 dBm over the -3 dB to +20 dB gain range. |
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Last Updated ( Wednesday, 25 January 2006 )
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Written by Administrator
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Saturday, 19 November 2005 |
Norwood, MA(11/16/2005) - Analog Devices Inc. (NYSE: ADI), a global leader in high-performance semiconductors for signal processing applications, is announcing the industry’s first differential amplifier (diff amp) to achieve the ultra low distortion levels needed to efficiently drive the high-speed analog-to-digital converters (ADCs) required by today’s advanced wireless infrastructure systems. The latest addition to ADI’s extensive portfolio of radio frequency (RF) components, the AD8352 is designed to drive 12- to 16-bit ADCs at the highest practical intermediate frequencies (IF) used within next generation 3G and 4G cellular and broadband WiMAX wireless infrastructure equipment. The AD8352 is capable of maintaining exceptional performance when driving high-speed ADCs up to 380 MHz, far exceeding the 100 MHz achieved by competing diff amps.
In today’s demanding wireless applications, lowering the distortion level of the ADC driver is critical to improving system performance at higher frequencies, as this helps maintain the quality of the spurious free dynamic range (SFDR) and signal-to-noise-ratio (SNR) of the ADC. This, in turn, minimizes the number of intermediate frequencies within the radio design, thus reducing power consumption, cost, component count, and board area, and advances system-level performance in applications such as wireless base stations.
“ADI believes it is important to design complementary solutions that match our world-class data converters, ensuring the best system performance for the customer,” said Peter Real, product line director, RF and Networking Components, Analog Devices. “For example, many third-generation base station receiver designs lower the system cost and improve performance by using a high-speed ADC and a single-stage high-IF down-conversion. Pairing the ultra low distortion AD8352 with 12- and 14-bit ADCs such as ADI’s AD9445, AD9246 and AD9233, which all feature outstanding SFDR and SNR performance, means that base station designers suffer no degradation in signal processing performance.” |
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Last Updated ( Wednesday, 25 January 2006 )
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Written by Administrator
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Monday, 09 August 2004 |
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DALLAS (January 24, 2006) -- Texas Instruments (TI) Incorporated (NYSE: TXN) today announced it has finalized its previously announced acquisition of Chipcon, a leading company in the design of short-range, low-power wireless RF (radio frequency) transceiver devices. This acquisition will expand TI’s high-performance analog portfolio and will enable TI to provide customers with industry-leading ZigBee™-compliant solutions and a broad range of proprietary radio frequency integrated circuits that enable innovative low-power wireless applications. (See www.ti.com/chipcon-pr.) The acquisition combines Chipcon’s market-leading radio frequency portfolio, technical support and development tools with TI’s high-performance analog silicon technologies, systems expertise and sales network to provide customers with complete low-power wireless solutions. Chipcon’s product line fully complements TI’s existing high-performance analog, power management and ultra-low-power microcontroller portfolio. Chipcon has a strong position within both proprietary and standards-based radio technologies and targets both consumer applications such as wireless keyboard/mouse, wireless VoIP solutions, remote controls, wireless gaming accessories and active RFID systems, as well as home and building automation applications such as alarm and security systems, automatic meter reading systems and other monitoring and control systems. The Chipcon product line strengthens TI’s position in ZigBee, a global standard for wireless monitoring and control applications. Chipcon was the first company to launch a 2.4 GHz IEEE 802.15.4 compliant and ZigBee-ready RF transceiver. The company also introduced the world's first true System-on-Chip ZigBee-compliant solution and recently added location estimation capability to this product. Chipcon is the first company to offer three ZigBee-compliant development platforms and provides a true one-stop-shop solution including RF transceivers, the industry-leading Z-StackTM ZigBee protocol software, development tools and proven reference designs.
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Last Updated ( Wednesday, 25 January 2006 )
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