Patent ID: 9692446
Date: 2017-06-27
CPC Classifications: G06F,H03M

Claim:
1. An integrated circuit (IC) chip containing a Delta-Sigma filter module (DSFM) for a Delta-Sigma analog-to-digital converter, said DSFM comprising: a Delta-Sigma filter connected to receive a digital data stream created by a Delta-Sigma modulator, provide a multibit data value when a counter reaches a selected number of received bits, and reset said counter responsive to receiving a synchronization pulse; a first-in, first-out (FIFO) buffer connected to store said multibit data value only when a synchronization flag is on and to send an interrupt towards a processing unit only after storing a selected number of said multibit data values; and a synchronization module connected to turn on said synchronization flag responsive to receiving said synchronization pulse and to turn off said synchronization flag responsive to the sending of said interrupt.