AD6650ABCZ

The AD6650ABCZ from Analog Devices is a diversity intermediate frequency-to-baseband (IF-to-baseband) receiver specifically designed for GSM/EDGE communication systems. This narrow-band receiver integrates a digital VGA, IF-to-baseband I/Q demodulators, low-pass filtering, and a dual wideband ADC, supporting IF inputs from 70 MHz to 260 MHz.

Key electrical specifications include a 116 dB dynamic range and a noise figure of 10 dB. It also offers a typical input IP2 of +43 dBm and an input IP3 of -9.5 dBm at 70 MHz IF. The device operates with 3.3 V I/O and a CMOS core, and features a microprocessor interface and JTAG boundary scan.

Packaged in a 121-CSPBGA (12x12) format, the AD6650ABCZ is designed for surface mount applications. Its architecture is optimized to meet GSM/EDGE blocking requirements with minimal external components, utilizing on-chip digital decimation and filtering circuitry for noise reduction and signal isolation. Programmable filters allow for antialiasing, matched filtering, and static equalization functions.

This receiver is suitable for applications such as PHS or GSM/EDGE single carrier diversity receivers, microcell and picocell systems, wireless local loop, smart antenna systems, software radios, and in-building wireless telephony.