Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synthesizer
Patent
1995-12-21
1998-05-26
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synthesizer
327 99, 327296, 327408, H03L 700, H03B 2700
Patent
active
057572127
ABSTRACT:
A pin-configurable frequency synthesizer for providing a choice of physical pin assignments/configurations without costly design and/or bonding changes. A functional block, having a plurality of functional conductors, is provided. The pin-configurable frequency synthesizer is housed in a chip package that includes a plurality of physical pins. A configuration matrix having a plurality of transmission circuits for connecting the functional conductors to the physical pins is also provided. A control circuit for controlling the transmission circuits of the configuration matrix is further provided. This control circuit includes programming logic and a logic array for generating control signals for each of the transmission circuits of the configuration matrix. These control signals direct the transmission circuits to selectively couple each functional conductor to a respective physical pin in accordance with a desired pin assignment. A user uses the programming logic to program the logic array in accordance with the desired pin assignment.
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Callahan Timothy P.
Cypress Semiconductor Corp.
Lam T. T.
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