ADRF6703

www.DataSheet4U.net 1550 MHz to 2650 MHz Quadrature Modulator with 2100 MHz to 2600 MHz Frac-N PLL and Integrated VCO ADRF6703 FEATURES IQ modulator with integrated fractional-N PLL RF output frequency range: 1550 MHz to 2650 MHz Internal LO frequency range: 2100 MHz to 2600 MHz Output P1dB: 14.2 dBm @ 2140 MHz Output IP3: 33.2 dBm @ 2140 MHz Noise floor: −159.6 dBm/Hz @ 2140 MHz Baseband bandwidth: 750 MHz (3 dB) SPI serial interface for PLL programming Integrated LDOs and LO buffer Power supply: 5 V/240 mA 40-lead 6 mm × 6 mm LFCSP dynamic range and linearity. The integration of the IQ modulator, PLL, and VCO provides for significant board savings and reduces the BOM and design complexity. The integrated fractional-N PLL/synthesizer generates a 2× fLO input to the IQ modulator. The phase detector together with an external loop filter is used to control the VCO output. The VCO output is applied to a quadrature divider. To reduce spurious components, a sigma-delta (Σ-Δ) modulator controls the programmable PLL divider. The IQ modulator has wideband differential I and Q inputs, which support baseband as well as complex IF architectures. The single-ended modulator output is designed to drive a 50 Ω load impedance and can be disabled. The ADRF6703 is fabricated using an advanced silicongermanium BiCMOS process. It is available in a 40-lead, exposed-paddle, Pb-free, 6 mm × 6 mm LFCSP package. Performance is specified from −40°C to +85°C. A lead-free evaluation board is availabl...