Order this document by MC3362/D Low-Power Narrowb.
Motorola
AN980 - VHF Narrowband FM Receiver Design Using the MC3362 & MC3363 Dual Conversion Receivers
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Motorola
MC3362 - LOW-POWER DUAL CONVERSION FM RECEIVER
Order this document by MC3362/D Low-Power Narrowband FM Receiver . . . includes dual FM conversion with oscillators, mixers, quadrature discriminator.