MicroelectronicsThe FM1702Q is an RF chip manufactured by Fudan Microelectronics that is a quad-band complex receiver with PLL synthesizer, part of their FM1700 series. It integrates circuits such as LNA, mixer, IF filter, multi-level limiter, and A/D converter. This chip comes in a QFN-40_6x6x05P (6mm x 6mm x 0.5mm) RoHS (Restriction of Hazardous Substances) packaging that offers a high-speed connection in a small, hermetically sealed package. This chip has a maximum working frequency of 868.3 MHz and is suitable for applications such as active RFID and video telephones. It is suitable for applications such as active RFID, ZigBee and video telephones. It features a frequency synthesizer with low phase noise and a high-performance, digitally-controlled attenuator with a wide dynamic range. The FM1702Q consists of a low noise amplifier (LNA), balanced mixer, frequency synthesizer with PLL circuit, IF filtering, multi-level limiter and A/D converter. This chip offers high performance in a small package, providing great signal integrity and accuracy.