With ADI’s ADL5565 differential amplifier, communications infrastructure and instrumentation equipment manufacturers can increase the dynamic range of receivers to support next-generation radio, test hardware and high-speed industrial instrumentation.

Analog Devices, Inc. (NYSE: ADI), a world leader in high-performance semiconductors for signal processing applications and RF ICs, today introduced a differential RF/IF (radio frequency/intermediate frequency) amplifier for driving high-speed 12-bit to 18-bit A/D converters. The ADL5565 differential amplifier features 3-dB bandwidth of 5 GHz and achieves unprecedented distortion, noise and IP3/IP2 performance out to 300 MHz. The ADL5565 amplifier is optimised for wide bandwidth, low distortion and low noise, and achieves industry-best HD3 and OIP3 distortion levels (–103 dB and 51 dBm at 100 MHz; –95 dB and 47 dBm at 200 MHz). The excellent distortion performance makes the ADL5565 ideal for applications in which high linearity and low noise are critical, including IF sampling receivers in wireless infrastructure applications, industrial instrumentation and defense electronics.

Analog Devices, Inc. (ADI), a world leader in high-performance semiconductors for signal processing applications and RF ICs (radio-frequency integrated circuits), today introduced two 1-watt, 2-stage RF driver amplifiers featuring the ability to cover the entire cellular frequency range used in wireless communications systems. The highly-integrated ADL5605 driver amplifier (covering the 700-MHz to 1000-MHz frequency range) and ADL5606 driver amplifier (operating in the 1800-MHz to 2700-MHz range) provide two stages of pin-compatible, are easy-to-tune and integrate gain, thereby saving significant board space when compared to traditional discrete designs. Furthermore, the new RF driver amplifiers integrate internal active biasing and a fast shutdown function for applications that require a power saving mode, or for applications such as wireless energy metering that transmit intermittently. These high-performance broadband RF driver amplifiers are well-suited for a variety of wired and wireless applications including cellular infrastructure; industrial, science, and medical- (ISM) band power amplifiers; defense and instrumentation equipment.

-The ADV7619 3-GHz, dual-port receiver enables AV designers to realise the full benefits of 3D and HD video formats, while future-proofing designs for the delivery of 4K x 2K digital cinema content.



Analog Devices, Inc. (ADI) today introduced the industry’s first 3-GHz (gigahertz) HDMI receiver for advanced television solutions. This new dual input receiver incorporates HDMI® (High-Definition Multimedia Interface®) specification version 1.4a support 3D display resolutions and extended colourimetry. Unlike 2.25-GHz ICs, ADI’s ADV7619 3-GHz, dual-port receiver is effective for next- generation home entertainment AV (audio/video) systems that must support the higher data rates required for emerging 3D and HD sports, movie and broadcast content. The 3-GHz receiver enables home- and pro-AV designers to deliver the full benefits of 3D and HD video formats by meeting demanding performance requirements, including 3D 1080p at 60 Hz for more realistic fast motion sports content, and 4K x 2K (4,000 x 2,000 pixels), for the high-end resolution used by digital cinemas, which at four times the resolution of 1080p, is considered by industry experts to be the next frontier in home theatre displays.

Building a simple tuned radio frequency (TRF) receiver is an easy job. TRF receivers work by tuning to the transmitting carrier frequency (duly amplitude modulated, of course) and amplifying them before feeding this RF to the detector stage. Three major types of AM receivers are:

1. The Crystal Radio Receiver: The crystal was actually an impure form of lead sulphide, called 'galena'. A spring was made to contact this crystal through a fine tip; thus as if working as a point contact diode. This was known as 'cat's whisker' in the past era. Acharya Jagadish Chandra Bose (and G. Marconi) devised this contraption. You will be surprised to learn that this radio consumed no external power supply. The induced current was sufficient to drive a high impedance crystal headphone. You can learn more here

A coaxial RF connector is an electrical connector designed to work at radio frequencies in the multi-megahertz range. RF connectors are typically used with coaxial cables and are designed to maintain the shielding that the coaxial design offers. Better models also minimize the change in transmission line impedance at the connection. Mechanically they provide a fastening mechanism (thread, bayonet, braces, push pull) and springs for a low ohmic electric contact while sparing the gold surface thus allowing above 1000 reconnects and reducing the insertion force. Research activity in the area of radio-frequency (RF) circuit design has surged in the last decade in direct response to the enormous market demand for inexpensive, high data rate wireless transceivers.