An Integrated Frequency-Selective AM/FM Demodulator
- 1 May 1971
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Broadcast and Television Receivers
- Vol. BTR-17 (2), 71-80
- https://doi.org/10.1109/TBTR1.1971.299560
Abstract
The lack of integrated inductors is a significant drawback in the design of frequency-selective integrated circuits for broadcast and TV receivers. In many cases, a partial integration of the receiver sub-systems is possible by combining all the active elements in a monolithic package and leaving the tuning coils and the inductors external to the circuit. However, this compromise solution often represents only a marginal advantage over the conventional design. For integrated receiver circuits, phase-lock techniques present an alternate design approach which eliminates the need for inductors1. In such an approach, one uses a phase-locked loop ( PLL) system to perfonn the selectivity and the demodulation functions in a receiver. A detailed analysis of the PLL system as a tracking filter and FM demodulator has been extensively covered in the literaturel-3 and will not be repeated here.Keywords
This publication has 5 references indexed in Scilit:
- Frequency-selective integrated circuits using phase-lock techniquesIEEE Journal of Solid-State Circuits, 1969
- Phase locking as a new approach for tuned integrated circuitsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1969
- A Phase-Locked AM Radio ReceiverIEEE Transactions on Broadcast and Television Receivers, 1969
- A Monolithic Limiter and Balanced Discriminator for FM and TV ReceiversIEEE Transactions on Broadcast and Television Receivers, 1967
- MiniaturizedRCFilters Using Phase Locked LoopBell System Technical Journal, 1965