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2 Line Output Combiner: Convert consumer equipment stereo signal to mono or
combine audio signal from two different equipments to1-input (added 4/02) |
|
2-Input Mixer: As simple as it gets. mixer consists of two
transistor-based preAmplifiers. first one (designated "Mike in") offers higher
gain. it works well with a regular dynamic microphone. second one can be used to
control audio input from a tape recorder/CD player. (added 6/06) |
|
2-Wire LCD Interface using PIC16cf84: Alphanumeric LCD displays have become
very popular for microcontroller applications because y can add a lot to a project in
a variety of different ways. A text message giving user instructions as well as
feedback can make application seem much more "professional" and easy to use. I
like to use LCD's to help debug applications, with breakpoints set to display variable
and I/O conditions and y are a lot cheaper than using a microcontroller emulator. To
top it off, surplus LCD's can be found for a dollar or less.... (added 4/05) |
|
3.3V Bus Switches for PC100/PC133 Dimm Switching: Pericom Semiconductor
Application Brief # 032 (app note added 02/05) |
|
6 Input Mixer: 3 line inputs and3 mic inputs (added 4/02) |
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6-Input mixer: (electronic circuit added 4/05) |
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Active Mixer Design Using the NE25139 Dual Gate MESFET (11/24/97) :
Application Note California Eastern Laboratories Doc #903 (app note added 6/06) |
|
AN-00-001 Figure of Merit of Mixer Intermod Performance (E-Factor):
Application Note MiniCircuits.com (app note added 6/06) |
|
AN-00-002 Triple balanced, Low cost, LTCC mixers (MCA): Application Note
MiniCircuits.com (app note added 6/06) |
|
AN-00-003 Dual double balanced mixers (HJK, HUD): Application Note
MiniCircuits.com (app note added 6/06) |
|
AN-345: Grounding for Low-and-High-Frequency Circuits : AN-345-Analog Device
Application Notes (app note added 2/06) Know Your Ground and Signal Paths
for Effective Designs. Current Flow Seeks Path of Least Impedance-Not Just
Resistance.... |
|
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP)
: AN-772-Analog Device Application Notes (app note added 2/06)
|
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AN-778: Using the PRUP Pin on the AD607 and AD61009 : AN-778-Analog Device
Application Notes (app note added 2/06) |
|
AN-884: Integrated LNA and Mixer Basics: National Semiconductor Application
Note (app note added 2/06) |
|
Circuit to Connect Telephone Equipment to Audio Mixer: I have used this type
of circuits for quick testing of telephone equipment. This is a quick hack that does
not exactly resemble the characteristics of the real telephone network, but is enough
for this kind if applications. If you want better simulation, change the resistor to
600 ohm and increase the power supply voltage. And by the way you can also feed
signals to telephone if you connect the circuit output wires to small amplifier
output. (added 2/06) |
|
Definition of mixer terms: Application Note MiniCircuits.com (app note
added 6/06) |
|
Dual double balanced mixers (HJK, HUD) AN-00-003: Application Note
MiniCircuits.com (app note added 6/06) |
|
Ever Amplifier Bridging: a design for a simple add-on bridging adapter for
stereo power amplifiers (added 4/02) |
|
FET Audio Mixer: (circuit added 7/02) |
|
Figure of Merit of Mixer Intermod Performance (E-Factor) AN-00-001:
Application Note MiniCircuits.com (app note added 6/06) |
|
High Quality Sound Mixer: very ambitious and expected to be very expensive
mixer project, modular design (added 4/02) |
|
How to select the proper mixer: Application Note MiniCircuits.com (app
note added 6/06) |
|
Integrated LNA and Mixer Basics: National Semiconductor Application Note
(app note added 2/06) |
|
Internal Modification to MIC Inputs of the Mackie 1604 Mixer Eliminates Rfi Problems:
adding transformer isolation increases common mode rejection and eliminates RF
interference, PDF document (added 6/06) |
|
Line Mixer: I designed this circuit for one friend of mine to be used as a
small portable DJ mixer. The circuit is an audio mixer circuit so simple as it can be.
There are two dual logarithmic potentiometers in the circuit to adjust the input
signal levels and some resistors to do the actual mixing. The circuit is totally
passive, so no power supply is needed. The circuit is suitable to be uses as a mixer
between two line level sources and one HIFI amplifier input. This circuit have been
successfully used for mixing signals form two CD players or computer soundcard and CD
players. There are many situations where simple mixer would be useful and commercially
available mixer desks are too expensive and big.... (added 2/06) |
|
Line Mixer #2: mix two line level sources to1-signal, includes separate
volume controls for both signals, passive circuit (added 5/02) |
|
Microphone Mixer: Designed for 3-dynamic microphones (added 6/06) |
|
One
Chip Sync Mixer: This simple circuit combines separate sync signals to1-negative
composite sync signal. This circuit is originally designed to hook up a CGA to display
which needs composite sync signal. Can be adapted for other uses. (added 6/06) |
|
PolyPhase Surface Mount Power Supply Meets AMD Athlon™: DN216 Design
Notes (Linear Technology) (app note added 1/06) |
|
Portable Mixer: High-quality modular design 9V Battery powered Very Low
current drawing (added 9/04) |
|
Simple Circuit to Connect telephone Equipment to Audio Mixer: I have used
this type of circuits for quick testing of telephone equipment. This is a quick hack
that does not exactly resemble the characteristics of the real telephone network, but
is enough for this kind if applications. If you want better simulation, change the
resistor to 600 ohm and increase the power supply voltage. And by the way you can also
feed signals to telephone if you connect the circuit output wires to small amplifier
output. (added 2/06) |
|
Simple Line Mixer: I designed this circuit for one friend of mine to be used
as a small portable DJ mixer. The circuit is an audio mixer circuit so simple as it
can be. There are two dual logarithmic potentiometers in the circuit to adjust the
input signal levels and some resistors to do the actual mixing. The circuit is totally
passive, so no power supply is needed. The circuit is suitable to be uses as a mixer
between two line level sources and one HIFI amplifier input. This circuit have been
successfully used for mixing signals form two CD players or computer soundcard and CD
players. There are many situations where simple mixer would be useful and commercially
available mixer desks are too expensive and big.... (added 2/06) |
|
Stereo Mixer : Can mix four separate audio inputs to mono or stereo output
signal (added 4/02) |
|
Telephone Test Circuit with Audio Mixer: get Telephone audio to mixer or
send audio to Telephone (added 4/05) |
|
Triple balanced, Low cost, LTCC mixers (MCA) AN-00-002: Application Note
MiniCircuits.com (app note added 6/06) |
|
Two Line Output Combiner: Convert consumer equipment stereo signal to mono
or combine audio signal from two different equipments to1-input (added 4/02) |
|
Unbalanced Mute Circuit for Audio Mixing Channels: application note in PDF
format (app note added 4/02) |
|
Understanding mixers: Application Note MiniCircuits.com (app note
added 6/06) |
|
Using the PRUP Pin on the AD607 and AD61009: AN-778-Analog Device
Application Notes (app note added 2/06) |
|
Video Sync Inverter Circuit: simple circuit to invert TTL level sync signals
(added 6/06) |
|
Voice over Circuit: Switches automatically from sound source to
microph1-when enough sound comes in from microphone. (added 4/02) |
