Invention Grant
- Patent Title: Dynamic gain assignment in analog baseband circuits
- Patent Title (中): 模拟基带电路中的动态增益分配
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Application No.: US13868671Application Date: 2013-04-23
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Publication No.: US08744393B2Publication Date: 2014-06-03
- Inventor: Saeid Mehrmanesh , Vahid Mesgarpour Toosi
- Applicant: SiTune Corporation
- Applicant Address: US CA San Jose
- Assignee: Situne Corporation
- Current Assignee: Situne Corporation
- Current Assignee Address: US CA San Jose
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: H04B1/06
- IPC: H04B1/06 ; H04B7/00

Abstract:
A system and method is provided for filtering and amplifying a signal where amplification can be distributed between stages of a filter and gain can be assigned throughout the filter to optimize system performance. Such a system can be implemented in the baseband section of RF receivers. VGAs can be implemented between filter stages, such as biquads, or VGAs can be incorporated in filter stages. Substantially linear VGAs comprising a parallel resistor array can be incorporated in the circuitry of the filter stages to reduce distortion. Gain can be assigned dynamically in the amplification stages to improve noise and/or linearity performance. For example, gain assignments can be implemented so that high power undesired signal components are filtered out before amplification to prevent component saturation, and low power signals are amplified before they are filtered to improve noise performance.
Public/Granted literature
- US20130235918A1 DYNAMIC GAIN ASSIGNMENT IN ANALOG BASEBBAND CIRCUITS Public/Granted day:2013-09-12
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