RFICs offer breakthrough integration for broadband communications app

RFICs offer breakthrough integration for broadband communications app

The ADRF6655 active mixer or ADRF6510 dual programmable filter and VGA integrate multiple functions and discrete devices into a single monolithic chip, reducing component count by a factor of four over traditional discrete RF designs. Operating within the 100 to 2,500-MHz frequency range, the ADRF6655 features a fully integrated fractional-N PLL synthesizer, a VCO, and associated LDO regulator circuits. The mixer also provides exceptional performance for both up- and down-conversion applications.

The PLL and VCO provide a fully integrated LO circuit that can also be brought off-chip for external use. The ADRF6655 operates on a single 5 V supply and features an input linearity IP3 of 29 dBm; an input compression P1dB of 14 dBm; a conversion gain of 6 dB, a noise figure of 12 dB, and LO phase noise of –111 dBc at 100-kHz offset.

The ADRF6510 provides an adaptable multistage adjustable gain control range of 50 dB. A preamp prior to the filters provides a 6-dB step, while the variable-gain amplifiers that follow the filter networks provide a gain range of –5 to 45 dB. Features include greater than 60 dBc IMD3 — making it suited for high order QAM modulation, quadrature (I-Q) communications systems supporting high-bandwidth signals up to 56 MHz. The ADRF6655 is available now in a 6 x 6-mm 40-pin LFCSP package, while the ADRF6510 is housed in a 5 x 5-mm 32-pin LFCSP package. (Ea/1,000: ADRF6655, $9.98; ADRF6510, $8.99 — available now.)

Analog Devices , Wilmington , MA
Information 800-262-5643
http://www.analog.com