ADRF6520ACPZ

ADRF6520ACPZ is a dual programmable filter and VGA for 2GHz channel spacing for µW radios. It is a matched pair of fully differential low-noise and low-distortion programmable filters and variable gain amplifiers (VGAs). Each channel is capable of rejecting large, out-of-band interferers while reliably boosting the wanted signal, thus reducing the bandwidth and resolution requirements on the analogue-to-digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range overall gain and bandwidth settings makes the ADRF6520 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers. The filter corners, enable, and DC offset correction loop enable are all programmable via a serial peripheral interface (SPI). Typical applications are point-to-point and point-to-multipoint radios, baseband IQ receivers, diversity receivers, ADC drivers, instrumentation, and medical.

• 4-pole Butterworth filter I/Q bandwidth: 36MHz to 720MHz
• IMD3: <lt/>-55dBc for 1.5V p-p composite output, HD2, HD3: <lt/>-55dBc for 1.5V p-p output
• Noise figure: 10.5dB at maximum gain, NF <lt/> 11dB over 12dB of VGA2 gain backoff
• 100 ohm differential input, low impedance output
• Optional DC output offset correction, SPI-programmable filter corners
• Single 3.3V supply operation with power-down feature
• Supply voltage range from 3.15 to 3.45V
• Total supply current is 425mA typ (maximum bandwidth setting, VPS, VPSD=3.3V, TA=25°C)
• 32-lead frame chip scale package [LFCSP]
• Temperature range from -40°C to +85°C

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party