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Mixers Circuits
Amplifier -- Main Page          Audio Circuits -- Main Page
Last Updated on: Friday, March 12, 2010 12:07 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
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" .... (added 4/05)
3 Line Mixer - ….(electronic schematic added 08/08)
3.3V Bus Switches for PC100/PC133 Dimm Switching - Pericom Semiconductor Application Brief # 032 (app note added 02/05)
6 Input Mixer (mitedu) - The mixer circuit below has 3 line inputs and 3 mic inputs. The mic inputs are suitable for low impedance 200-1000R dynamic microphones. An ECM or condenser mic can also be used, but must have bias applied via a series resistor. As with any mixer circuit, a slight loss is always introduced. The final summing amplifier has a gain of 2 or 6dB to overcome this. The Input line level should be around 200mV RMS....(schematic added 08/08/08)
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 2/06)
AN-00-002  Triple balanced, Low cost, LTCC mixers MCA - Application Note MiniCircuits.com  (app note added 2/06)
AN-00-003  Dual double balanced mixers HJK, HUD - Application Note MiniCircuits.com  (app note added 2/06)
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 & Manufacturing Guide for the Lead Frame Chip Scale Package - AN-772-Analog Device Application Notes  (app note added 2/06) 
AN-778: Using the PRUP Pin on the AD607 & AD61009  - AN-778-Analog Device Application Notes  (app note added 2/06) 
AN-884: Integrated LNA & Mixer Basics - National Semiconductor Application Note  (app note added 2/06)
Audio Voice-Over Circuit - (electronic design added 6/07)
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 ....(added 11/05)
Definition of mixer terms - Application Note MiniCircuits.com  (app note added 08/08/08)
Dual double balanced mixers HJK, HUD - Application Note MiniCircuits.com  (app note added 08/08/08)
Ever Amplifier Bridging - a design for a simple add-on bridging adapter for stereo power amplifiers (added 4/02)
FET audio mixer (Aaron Cake) - This simple circuit mixes two or more channels into one channel (eg. stereo into mono)....(circuit / schematic design added 7/02)
Figure of Merit of Mixer Intermod Performance E-Factor - AN-00-001  Application Note MiniCircuits.com  (app note added 08/08/08)
HIGH IP3 WiMAX MIXERS - Application Note MiniCircuits.com  (app note added 08/08/08)
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 04/05/06)
Integrated LNA & Mixer Basics - National Semiconductor Application Note  (app note added 2/06)
Internal Modification to Mic Inputs of the Mackie 1604 Mixer Eliminates RFI Problems - AS074 Jenson Transformer Application Note  (app note 04/03/02)
Line Mixer - mix two line level sources to1-signal, includes separate volume controls for both signals, passive circuit (added 5/02)
Low cost circuit incorporates mixing & Amplifying functions - 07/10/08 EDN-Design Ideas: Using an amplifier with a power-down disable, you can combine the mixer and the amplifier functions.....(design idea added 09/08)
LTCC Mixer For Instrumentation & Military Applications - Application Note MiniCircuits.com  (app note added 04/05/06)
Microphone Mixer (Aaron Cake) - Designed for 3-dynamic microphones (added 04/03/02)
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 ....(added 11/05)
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,....  (added 2/06)
Stereo Mixer (Randy Linscott) - With this circuit you can mix four separate audio inputs. Each input will accept high or low impedance microphones, phonograph, tape or aux signals. You can adjust the gain of each input by adjusting each respective pot. With the Stereo/Mono switch you...(electronic schematic / circuit added 2/05)
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 - Application Note MiniCircuits.com  (app note added 08/08/08)
Two Line Output Combiner - Convert consumer equipment stereo signal to mono or combine audio signal from two different equipments to1-input (added 4/02)
Using the PRUP Pin on the AD607 & AD61009 - AN-778-Analog Device Application Notes  (app note added 2/06) 
Voice-Over Circuit - This is a circuit where a microphone and preamp circuit (voice circuit) have priority over any other audio signal. You can think of this as a one way intercom, if the main amplifier is used for listening to music, then when the push to talk switch is pressed, the amplifier is switched to the voice signal....(added 4/02)

 
 
 
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