Amplification circuit with read/write circuit
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United States of America Patent
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May 26, 2020
Grant Date -
Feb 28, 2019
app pub date -
Aug 21, 2018
filing date -
Aug 28, 2017
priority date (Note) -
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Abstract
The invention relates to an amplification circuit (100), comprising: a VGA (2), an AGC loop (10) for automatically controlling the gain of the VGA (2), a switching circuit (14) for switching between an AGC mode, in which the gain of the VGA (2) is automatically controlled by an output signal of the AGC loop (10) and a manual gain control, MGC, mode, in which the gain of the VGA (2) can be manually controlled by an input signal, and a read/write circuit (30) with a contact (31) for connection to a peripheral system, wherein the read/write circuit (30) is configured, in the MGC mode, to provide the input signal from the contact (31) via a write-mode path (32) to the VGA (2), and, in the AGC mode, to provide the output signal of the AGC loop (10) via a read-mode path (33) on the contact (31).
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