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1W RF Power Amplifier for iPOD Stereo FM transmitters - This map, armored
also enables automatic MONO / MPX through a low-pass filter, even with a
multiplex on its entry by using an ON / ON, panning, the whole spectrum MPX more
RDS is sent to the synthesizer, on the other hand when it is in a position MONO,
the low-pass filter is activated and share its cutoff frequency at 15 KHz, only
modulation G + D is sent to the synthesizer, as 19 KHz. 19 KHz carrier, the
signal multiplex and subcarrier 57 KHz is thereby eliminated, which provides
ease of use for example in a string of issue relay tuner, if the link between
the issuer Departure and receiver re-issue was not of good quality stereo, you
sufficient to switch to mono to improve sound quality, you can then connect the
RDS encoder at the re-issuer.
20 Watt Audio Amplifier (Aaron Cake) - Simple stereo amplifier based on
TDA1554..
20 Watt/Channel Stereo Power Amplifier - Based on the versatile LM1875 from
National Semiconductor
27MHz toy car Transmitter
2x30W (stereo) Amplifier with STK465 - A amplifier of acoustic frequencies
can be manufactured with discernible materials, despite is known so much the
difficulties of finding of materials, what the problem of regulations. These
difficulties are overcome relatively easily if we find amplifier in form
completed.
4 Channel Stereo Audio Selector - The add-on circuit presented here is
useful for stereo systems. This circuit has provision for connecting stereo
outputs from four different sources/channels as inputs and only one of them is
selected/connected to the output at any one time.
5W PLL Stereo Transmitter with LCD - Here's PLL FM transmitter circuit from
china. This circuit uses the familiar 2SC1971 for final power amplifier stage.
A Simple FM Stereo Transmitter
A Soundfield Simulator for Stereo Headphones - An adaptation of the Linkwitz
acoustic simulator (see An Acoustic Simulator for Headphone Amplifiers by Chu
Moy above) as a front-end for headphone amplifiers with very high input
impedance, such as the author's own headphone amp project (see A DC-Coupled,
Selectable-Gain Headphone Amplifier). This circuit features a continuously
adjustable Soundfield control. Designed by Chester Simpson
Add on Stereo Channel Selector
AN-11 LX1720: High-Efficiency Class-D, Stereo Audio Amplifier Controller IC.
Summary - Application Note Microsemi 1501
AN-147: Low Cost IC Stereo Receiver - National Semiconductor Application
Note
AN-543-Stereo FM Transmitter DSP, 26,085 bytes -
AN-543-StereoFMTransmitter-Analog Device Application Notes
Audio Line Driver
Big Ear Stereo Parabolic Microphone - This device is a stereo amplifier for
a high sensitivity stereo parabolic microphone. It can be used for listening to
distant sounds. Typical parabolic microphones are monophonic, this unit has a
stereo audio path that helps produce more realistic sounding audio. The Big-E
can be used with headphones or as an audio source for a stereo tape recorder.
Converts Consumer Stereo Inputs to Mono Balanced Mic Output - AS078 Jenson
Transformer Application Note
High quality AM through your FM stereo
High-quality Stereo Encoder - This stereo encoder is a halfway between
analogue and digital processing. It combines the best from both domains to
provide high-quality and easy to build device. The sampling frequency used in
this stereo encoder is 97 times…
Improved FM Stereo Modulator
Ipod Stereo FM transmitter with 1W output power - This project explain how
you can build and connect a powerful 1W amplifier to your FM transmitters…
JT-DB-E Converts Consumer Stereo Inputs to Mono Balanced Mic Output - AS078
Jenson Transformer Application Note
JT-MB-D Passive Stereo Matrix for M-S Mic Technique - AS055 Jenson
Transformer Application Note
LM1876-Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier
with Mute & Standby Modes - The LM1876 is a stereo audio amplifier capable
of delivering typically 20W per channel of continuous average output power into
a 4 or 8 load with less than 0.1% THD+N.
Low Cost IC Stereo Receiver - National Semiconductor Application Note
LX1720: High Efficiency Class-D Stereo Audio Amplifier Controller IC -
MicroNote 1501 from Microsem
LX1720: High-Efficiency Class-D, Stereo Audio Amplifier Controller IC. Summary
AN-11 - Application Note 11 from Microsem
MS Stereo Microphone
Multimedia Speaker
NTE789 Stereo Decoder - The NTE789, a monolithic silicon integrated circuit,
is a stereo multiplex decoder intended for FM multiplex systems. This stereo
multiplex decoder requires only one low–inductance tuning coil (requires only
one adjustment for complete alignment), provides automatic stereo switching,
energizes a stereo indicator lamp, and operates from a wide range of voltage
supplies.
Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier with
Mute & Standby Modes - The LM1876 is a stereo audio amplifier capable of
delivering typically 20W per channel of continuous average output power into a 4
or 8 load with less than 0.1% THD+N.
Passive Stereo Matrix for M-S Mic Technique - AS055 Jenson Transformer
Application Note
Professional Stereo Encoder - Uses high quality NJM2035 stereo coder IC.
RIAA Equalized Stereo Phono Preamp |
