AES E-Library

AES E-Library

Direct AM Stereo Detection by a PLL Synthesized Synchronous Carrier Generator

Document Thumbnail

It is now possible to combine a PLL frequency synthesizer and a PLL synchronous detector to form a new demodulation system. In this circuit the crystal oscillator phase, which is the reference for the PLL frequency synthesizer, is controlled by the dc output voltage of the quadrature detector. Received frequencies are detected directly, without the need for superheterodyne conversion. This detection system incorporates very few inductors and can be produced in an integrated circuit. The system yields high-fidelity AM reception and is easily adapted for AM stereo.

JAES Volume 31 Issue 5 pp. 326-331; May 1983
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society