Mar 6, 2003 #1 A ahgu Full Member level 3 Joined Jun 19, 2001 Messages 172 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 1,552 audio agc circuit Does anyone has a simple yet effective AGC for MIC amplification before the signal goes to the codec? I don't want the signal to saturate, but amplify about 30-40dB if possible for weak signals. thanks ahgu
audio agc circuit Does anyone has a simple yet effective AGC for MIC amplification before the signal goes to the codec? I don't want the signal to saturate, but amplify about 30-40dB if possible for weak signals. thanks ahgu
Mar 6, 2003 #2 M ME Advanced Member level 4 Joined Mar 14, 2002 Messages 1,309 Helped 55 Reputation 112 Reaction score 40 Trophy points 1,328 Activity points 14,859 mic agc You can use the SSM2165, SSM2166 or SSM2167 Microphone Preamplifier with Variable Compression and Noise Gating from Analog Devices.
mic agc You can use the SSM2165, SSM2166 or SSM2167 Microphone Preamplifier with Variable Compression and Noise Gating from Analog Devices.
Mar 6, 2003 #3 U usbman Advanced Member level 4 Joined Sep 22, 2002 Messages 118 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,298 Location Germany Activity points 1,020 simple agc circuit ahgu said: Does anyone has a simple yet effective AGC for MIC amplification before the signal goes to the codec? I don't want the signal to saturate, but amplify about 30-40dB if possible for weak signals. thanks ahgu Click to expand... you may check the INA163 datasheet form BurrBrown/TI. The datasheet contains some mic examples, but no AGC. usbman
simple agc circuit ahgu said: Does anyone has a simple yet effective AGC for MIC amplification before the signal goes to the codec? I don't want the signal to saturate, but amplify about 30-40dB if possible for weak signals. thanks ahgu Click to expand... you may check the INA163 datasheet form BurrBrown/TI. The datasheet contains some mic examples, but no AGC. usbman
Mar 6, 2003 #4 Hishamsaleh Full Member level 1 Joined Jan 6, 2003 Messages 98 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 969 agc circuit **broken link removed**
Mar 6, 2003 #5 M ME Advanced Member level 4 Joined Mar 14, 2002 Messages 1,309 Helped 55 Reputation 112 Reaction score 40 Trophy points 1,328 Activity points 14,859 microphone agc There is no compressor function in the circuit you linked to Hishamsaleh.
Mar 7, 2003 #6 A ahgu Full Member level 3 Joined Jun 19, 2001 Messages 172 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 1,552 microphone agc circuit I found one, working very nice.
Dec 17, 2011 #7 N nyk Newbie level 4 Joined Nov 21, 2011 Messages 6 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,331 Can u post that circuit that worked for you? PLz... ahgu