Hi NXP expert！
In order to achieve a longer read range (approximately 40 cm), I am designing an external power amplification circuit based on the CLRC66303 (targeting a power output of 4W). The attachment shows an external amplification circuit from Application Note AN1425 (designed for the PN5xx series). My question is:
1、Is this amplification circuit suitable for the CLRC66303? If I use the circuit shown in the diagram for RF amplification in CLRC66303, is there anything I should pay attention to?
2、I am concerned that the amplification circuit might affect the phase of the carrier. When the internal receiving circuit of the chip performs quadrature demodulation, the clocks generated by the I and Q orthogonal mixers could have a phase shift relative to the carrier that actually passes through the amplification circuit. This could impact the receiving performance. Do I need add some auxiliary circuitry in receive path, such as a phase-shifting circuit？
