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专利名称：Frequency offset and method of offsetting发明人：Mark R. Gehring,Russell R. Moen,Brent R.
Jensen
申请号：US11261166申请日：20051027
公开号：US20070098111A1公开日：20070503
专利附图：
摘要：A transmitter digital signal processor (DSP) circuit has a transmit frequencyrepresented by n-bit data output from a look up table (LUT). The n-bit data is outputtedto an n-bit accumulator structured to overflow at a rate based on the output n-bit data
to output a phase. The circuit further has device structured to add an n-bit signedconstant to the accumulator to offset the frequency represented by the n-bit dataoutput from the LUT. A transceiver on a semiconductor chip may include as part of atransmitter circuit, a transmit DSP circuit that has the LUT, accumulator and deviceproviding an n-bit signed constant to the accumulator to offset a transmit frequency inorder to allow a receiver circuit on the transceiver to communicate directly with thetransmitter circuit, and thus allowing testing of the transceiver.
申请人：Mark R. Gehring,Russell R. Moen,Brent R. Jensen
地址：Portland OR US,Tigard OR US,Hillsboro OR US
国籍：US,US,US
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