Invention Grant
- Patent Title: High speed multi-modulus prescalar divider
- Patent Title (中): 高速多模式预分频器
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Application No.: US11717262Application Date: 2007-03-13
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Publication No.: US07826563B2Publication Date: 2010-11-02
- Inventor: Hongming An , Simon Pang , Viet Linh Do
- Applicant: Hongming An , Simon Pang , Viet Linh Do
- Applicant Address: US CA San Diego
- Assignee: Applied Micro Circuits Corporation
- Current Assignee: Applied Micro Circuits Corporation
- Current Assignee Address: US CA San Diego
- Agency: Law Office of Gerald Maliszewski
- Agent Gerald Maliszewski
- Main IPC: H03D3/24
- IPC: H03D3/24

Abstract:
A system and method are provided for multi-modulus division. The method accepts an input first signal having a first frequency and divides the first frequency by an integral number. A second signal is generated with a plurality of phase outputs, each having a second frequency. Using a daisy-chain register controller, phase outputs are selected and supplied as a third signal with a frequency. Selecting phase outputs using the daisy-chain register controller includes supplying the third signal as a clock signal to registers having outputs connected in a daisy-chain. Then, a sequence of register output pulses is generated in response to the clock signals, and register output pulses are chosen from the sequence to select second signal phase outputs. By using 8-second signal phase outputs, a third signal is obtained with a frequency equal to the second frequency multiplied by one of the following numbers: 0.75, 0.875, 1, 1.125, or 1.25.
Public/Granted literature
- US20080225989A1 High speed multi-modulus prescalar divider Public/Granted day:2008-09-18
Information query
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