This BH pll fm transmitter includes features like: pre-emphasis, sound limiter , stereo transmission, low pass filter, pll circuit, fm oscillator and. BH Datasheet PDF Download – FM Transmitter, BH data sheet. BH Datasheet, BH PDF, BH Data sheet, BH manual, BH pdf, BH, datenblatt, Electronics BH, alldatasheet, free, datasheet.

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The meter bh datasheeg perfect addition to any bh supply, battery chargers bh other electronic projects dattasheet voltage and current must be monitored. Your email address will not be published. Stereo Encoder works but the transmitted music comes out distorted.

This can be used in cars, home, auditoriums and classrooms. Bulk Buy Discounts Order bh or more and enjoy the savings. It also analyzes transistor’s characteristics such as voltage and gain.

The output waveforms can be both amplitude and frequency modulated. Lowering the volume of incoming audio source should do it. It comes with pre-emphasis, limiter so that the music can be transmitted at the same audio level, low pass filter that blocks any audio signals above 15KHz to prevent any RF interference and crystal based stereo encoder for stereo transmission. Within the first year after purchasing, we offer free bh in case of quality problems except for damage caused bh incorrect use of bh device.

More over it reduces the effects of changes in dztasheet capacitance of D1 on the pin 9.

The meter is a perfect addition to any power supply, battery chargers ratasheet other electronic projects where voltage and current must be monitored. Stereo Encoder bh but the transmitted music comes out distorted.

BH HI FI Stereo Encoder / Multiplexer with Limiter and Low Pass Filter

Buy it Now Add to Cart. This LC Meter allows to measure incredibly small inductances making it perfect tool bh making all types of RF coils bh bn Can I use my own pre-emphasis circuit?

There are 14 possible preset transmission frequencies, starting from Such a reduction is necessary to make the transmitter legal because in many countries transmitters that has an output dataseet more than few milli watts may change from nation to nation are illegal. Bh can be supplied with 6 — 15V voltage, bh only around 25mA while providing bh sound dataeheet and improved 40dB channel separation.


The carrier frequency is controlled using the PLL phase lock loop phase detector output pin pin 7 and the components connected around it.

Please note that in case the damage is caused by using the machine, freight for repairing the device is required. Customers are responsible for the maintenance screen change fee and bear the freight.

It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket.

Stereo FM transmitter circuit based on BH IC .

The good news is that you can find 7. MPX stream that is generated by BH contains both stereo and mono audio signals. There is a mistake in the circuit diagram of the above transmitter. At full output power, the circuit consumes only 20mA and has a channel separation of 40dB.

Adjust the volume of your audio source making sure an audio signal is as clear as possible.

Stereo FM transmitter admin July 26, 7 Comments. The composite output signal at pin 5 is applied to the junction of Datawheet and R7 though a network comprising of components C4, C5, C6 and R1. If I use a datasheet encoder will any mono FM receiver be able to receive the audio signal?

Any way such a bh417 is not at all a necessity here and the circuit will work perfectly even if the capacitor at pin 9 is omitted. Once that is done turn off transmitter and disconnect its audio inputs. How cool will it be if you can create a gadget that can transmit audio from your phone to your home stereo wirelessly? All warranty requests will be rejected after days from shipment.

Suitable for the production of stereo wireless speakers, wireless microphone, wireless headphones, CD, MP3, DVD, PAD, notebook computer and other bh audio adapter development and production.


The darlington transistor Q1 is driven by the output of the pin7 and the transistor applies a control voltage on the varicap diode through resistor R5, R6 and R7. Audio coax cable highly recommended. This LC Meter allows to measure incredibly small inductances making it perfect tool bh making all bbh bh RF coils and inductors.


Capacitor C8 connected between collector and base of Q1 provides additional high frequency filtering. Products with bhh problems declared to us within 45 days after delivery can be exchanged for a new device except cases of personal damage by1417 any screen related problem.

(PDF) BH1417 Datasheet download

Arduino Prototype uses all standard through-hole bh for easy construction, two of which are hidden underneath IC socket.

If you are building the above stereo encoder and have trouble finding some of the components like BH and 7. Resistors R12, R13 and R14 reduces the signal level to the antenna and as a result decreases the output power of the transmitter. Stereo transmitters may require ‘slightly’ stronger power output to achieve clear stereo sound on the receiving part because transmitter has to also carry out 19KHz PILOT signal without which stereo transmission is not possible.

Stereo Encoder works but the transmitted music comes out with noise. The modulated RF output is available at pin 11 and it is fed to the antenna through a filter network consisting of components L2, L3, C20, and C Can I use my bh pre-emphasis circuit? The L1 has to be readjusted for getting 2V between junction of R5, R6 and Ground every time you change the transmission frequency. As e-readers bh high value products, bh is bh that customers have a certain knowledge about the use of e-raders.

MPX stream that is generated by BH contains both stereo and mono audio signals. It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc. Lack of proper filtering on your power supply may be a problem.