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Their customers wanted more range out of their low-power wireless and ZigBee designs, so Texas Instruments designers first created a reference design for them. This proved to be helpful, but customers still needed to stock numerous components and perform tuning and matching on the circuit. So, TI went back to the drawing board and developed the CC2591, a new 2.4-GHz radio frequency (RF) front end for low-power and low-voltage wireless applications. The CC2591 integrates a power amplifier, low-noise amplifier, balun, switches, inductors and RF-matching network to increase the range (link budget) in wireless systems. As a result, the device offers an additional output power of +22 dBm and improved receiver sensitivity of +6 dB. Gain flatness is specified at better than 2dB.
"Designed as a range extender for low-power wireless applications, the CC2591 offers up to 28 dB increased link budget as a result of the +22dBm output power and 6dB improvement to receiver sensitivity," explained Vidar Bergli, TI Product Marketing Engineer, Low-Power RF. "So, with 28dB added to the link budget, you theoretically boost line-of-site range by 15X."
Manufactured using silicon germanium (SiGe), the new CC2591 device teams with TI's 2.4-GHz RF transceivers, transmitters and system-on-chip products, such as the CC2430 for faster development time and improved RF performance.
The CC2591 is available now from TI and its authorized distributors in a 4 mm x 4 mm QFN-16 package. Suggested resale pricing starts at $3.15 in 1,000-piece quantities. The CC2591EMK evaluation module kit is priced at $99.00 (US$).
Click here for data sheet.
Click here for more information on TI's Low-Power Developer Network.
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