The ADRF6703 provides a quadrature modulator and synthesizer solution within a small 6 mm × 6 mm footprint while requiring minimal external components...
ADRF6703 on Analog.com
I'm a DFAE in Japan. Our customer look for the replacement for ADRF6703. Could you please let me know?
If a customer is looking for PLL and VCO integrated modulator, they can consider ADRF6750, ADRF6755, HMC1197 for the replacement for ADRF670x products.