A Single-chip VHF And UHF Receiver For Radio Paging

This single-chip radio receiver for VHF and UHF wide-area paging transmissions up to 500MHz with FSK data rates up to 1200 baud integrates low-pass filters which perform al adjacent channel selectivity. Off-chip passive components are required only for local oscillator (LO) frequency determination and rf filtering. The IC gives -126dBm sensitivity, 70dB adjacent-channel immunity and 60dB intermodulation immunity (IEC method) to satisfy all known POCSAG paper type approval requirements worldwide.