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CMOS on-chip precision voltage reference scheme

  • US 6,288,602 B1
  • Filed: 12/29/1995
  • Issued: 09/11/2001
  • Est. Priority Date: 06/25/1993
  • Status: Expired due to Fees
First Claim
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1. A computer system comprising:

  • a bus means for providing bidirectional communications; and

    at least two modules coupled to the bus means with each one of said two modules having an interface unit for connecting to the bus means, a logic means for generating at least one desired function coupled to the interface unit and a reference voltage generator for generating and applying a predetermined reference voltage to the interface unit, said reference voltage generator including a phase lock loop, a frequency adjustment means coupled to the phase lock loop, for adjusting frequencies of the phase lock loop until a frequency is set whereat the reference voltage is established and a circuit arrangement for locking the frequency to one of the frequencies which produce the reference voltage.

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