Invention Grant
US08362936B2 Circuit and method for optimizing dynamic range in a digital to analog signal path
有权
用于优化数字到模拟信号路径中的动态范围的电路和方法
- Patent Title: Circuit and method for optimizing dynamic range in a digital to analog signal path
- Patent Title (中): 用于优化数字到模拟信号路径中的动态范围的电路和方法
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Application No.: US13011784Application Date: 2011-01-21
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Publication No.: US08362936B2Publication Date: 2013-01-29
- Inventor: Robert Ledzius , Matt Felder
- Applicant: Robert Ledzius , Matt Felder
- Applicant Address: US CA San Jose
- Assignee: Maxim Integrated Products, Inc.
- Current Assignee: Maxim Integrated Products, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H03M1/66
- IPC: H03M1/66

Abstract:
A circuit for maximizing dynamic range in a digital to analog signal path comprises an input for receiving an input signal, a first gain stage coupled to the input having a first gain setting, an second gain stage coupled to the first gain stage, the second gain stage having an second gain setting, a controller configured to selectively increase the first gain setting and decrease the second gain setting according to the input signal level and an output coupled to the second gain stage for transmitting an output signal. A method for maximizing dynamic range in a digital to analog signal path comprises detecting a digital input signal level, detecting a desired user gain level, applying a first gain to the digital input signal, converting the digital input signal into an analog signal, and applying a second gain to the analog signal, wherein the first and second gain are selectively and inversely manipulated according to the digital input signal while maintaining a desired user gain level.
Public/Granted literature
- US20120188111A1 CIRCUIT AND METHOD FOR OPTIMIZING DYNAMIC RANGE IN A DIGITAL TO ANALOG SIGNAL PATH Public/Granted day:2012-07-26
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