A. Mortara et Ea. Vittoz, A 12-TRANSISTOR PFM DEMODULATOR FOR ANALOG NEURAL NETWORKS COMMUNICATION, IEEE transactions on neural networks, 6(5), 1995, pp. 1280-1283
Pulse frequency modulation (PFM) provides robust long-distance communi
cation and event-driven access to the communication channel, A PFM dem
odulator small and simple enough to equip every cell of a large analog
neural network is analyzed, The circuit can demodulate PFM signals wi
th pulse rates as low as 1 kHz using the switched-capacitor technique,
Measurement results from integrated demodulators are presented.