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Attenuators Circuits
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Attenuators: #'s - D
E-Z
Last Updated on:
Friday, March 23, 2012 04:35 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Electronic attenuator - Two low voltage, low power zeners
are used to control electronically the level of an audio signal. The
attenuation range is from 6 to 58dB for an input current from 0.042 to
77mA corresponding to a control voltage from 2.7 to 7.5V. If control
voltage is limited to 5V, the attenuation is around 30dB at a control
current of 2mA. This is not an HiFi attenuator but might come
useful as a general purpose audio attenuator.... (added 9/07)
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Electronics Attenuator Circuit - ….(design added 08/08)
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Fixed attenuators help minimize impedance mismatches -
AN-70-001 Application Note MiniCircuits.com (app note
added 08/08/08) |
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Introduction, definition of terms, Q&As-att6-1 - Application
Note MiniCircuits.com (app note added 04/05/06) |
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OpAmp Linearizes Attenuator Control Response - 07/25/02
EDN-Design Ideas: Professional-audio equipment commonly
uses Analog Devices' (www.analog.com]high-performance,
quad-voltage-controlled SSM2164 attenuator. The control response is
-30 dB/V, with 0V producing unity gain. Attenuation increases as the
applied....[Design Idea added 12/04] EDN migrating links. This link is
not verified. Google the "title" EDN for new link. |
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Precision Attenuator With Digital Control - When instruments are
designed, an analogue front end is essential. Further, as most equipment have
digital or microcontroller interface, the analog circuit needs to have digital
control/access. The circuit described here is that of a programmable attenuator
with digital control - which can be a remote dip switch, or CMOS logic outputs....
[the designer is not given] |
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Precision Audio Attenuator Using the MAX502 - Maxim Application Notes /
1844 / Sep-03 (app note added 5/08) |
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Precision divide by two analog attenuator needs no external components -
03/17/05 EDN Design Ideas Many modern A/D converters offer only
a 5V input range, and using these converters with a 65V or larger input signal
gives the designer a problem: how to discard half of a good analog signal without
introducing errors and distortion. To solve the problem, you can use an attenuator
comprising two operational amplifiers and two resistors (Figure 1).... [Design
Idea by Moshe Gerstanhaber and Chau Tran, Analog Devices, Wilmington, MA] |
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Precision divide-by-two
analog attenuator needs no external components - 17-Mar-05 Issue of EDN
Many modern A/D converters offer only a 5V input range, and using these converters
with a 65V or larger input signal gives the designer a problem how to
discard half of a good analog signal without introducing errors and distortion. To
solve the problem, you can use an attenuator comprising two operational amplifiers
and two resistors (Figure 1].... [Design Idea by Moshe Gerstanhaber and Chau Tran,
Analog Devices, Wilmington, MA; Edited by Brad Thompson] |
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Step Attenuators offer Precision & Linearity - Application Note
MiniCircuits.com (app note added 08/08/08) |
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Stereo Potentiometer - in PDF format, text in Finnish (added 4/02)
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Variable Optical Attenuator in BER Test Applications - Aligent
Application Note (added 04/05/06) |
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Attenuators:
#'s - D
E-Z
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