公开(公告)号：WO2012068260A1

公开(公告)日：2012-05-24

申请号：PCT/US2011/061009

申请日：2011-11-16

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  PRASAD, Shanthi

IPC: G06F7/556 ,  H03M7/50

CPC classification number: G06F7/556 ,  G06F1/0307 ,  H03F1/0227 ,  H03M7/04

Abstract: A digital log gain to digital linear gain multiplier is disclosed. The digital log gain to digital linear gain multiplier includes a log gain splitter adapted to split a log gain input into an integer log part and a remainder log part. A log scale-to-linear scale converter is adapted to output a linear gain value in response to the integer log part and the remainder log part. A gain multiply circuit is adapted to multiply a digital signal by the linear gain value to output a gain-enhanced digital signal.

Abstract translation: 公开了对数字线性增益乘数的数字对数增益。 对数字线性增益乘数的数字对数增益包括一个对数增益分配器，适用于将日志增益输入分解为整数对数部分和余数对数部分。 对数缩放比例转换器适于响应于整数对数部分和其余日志部分输出线性增益值。 增益乘法电路适于将数字信号乘以线性增益值以输出增益增强数字信号。