Frequency divider circuit arrangement

Details Frequency divider circuit arrangement Frequency divider circuit arrangement

H - Electricity

03

K

328/18, 328/70

H03K 23/52 (2006.01) H03K 3/356 (2006.01)

Patent

CA 1241383

13 ABSTRACT: In order to reduce the likelihood of incorrect states being transferred from one cross-coupled transistor pair to the next in a frequency divider which comprises at least two such pairs (6a, 7a and 8a, 9a) which are ener- gized alternately by means of a switchable current source arrangement (5) and which are inter-coupled to form a cyclic arrangement by means of data transfer transistors (6b, 7b, 8b and 9b) energized from the same outputs (22, 23) of the current source arrangement, the transistors employed are of the insulated gate field effect type. If desired the channel width-to-length ratios of the pair transistors (6a, 7a, 8a, 9a) may be chosen to be different to the corresponding ratios for the data transfer transis- tors (6b, 7b, 8b, 9b) in order to improve either the high-frequency or the low frequency performance in accor- dance with the sign of the difference.

474828

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