27.03.2021 tarihinde güncellenen 22.01.2008 tarihinde yayımlanan 2X60 Watt Dijital Anfi ile 2759 yazısı var. Yazar gevv
AT90S8535, TDA7318 ve LM3886 ile gerçekleştirilmiş Dijital anfi Sistemin LCD Göstergesi var sinyal giriş seçimi yapılabiliyor ne yazıkki açıklamalar çözemediğim bir dilde 🙂 ama ATMEL microcontroller ile uğraşan kişiler için iyi bir kaynak AT90S8535 için kaynak .bas kodu tüm şematik dökümanlar var proje 4 bülümden oluşuyor cpu bord anfi preanfi ve besleme Anfi Olarak Artık klasikleşen LM3886 Entegresi Kullanılmış kaliteli kurulumu kolay 🙂 bir entegre fiyatıda uygun
The amplifier is controlled completely digitally . Used items are of high quality such as metal resistors in the audio , WIMA film capacitors … The power stage is the LM3886 systems . These are some of the best integrated amplifiers . The structure is typical of the system . The amplifier should reach about 50W per channel 🙂 8 Ohm load .
The amplifier is powered from a power supply built toroidal transformer ( 150W ) and capacitors with a total capacity of 40 000uF . Next to it is a smaller power supply from the power of the digital preamp and tuner. The preamplifier circuit is based on the TDA7318 . This system also has a very good audio quality ( low distortion , noise , high dynamic ) . It has an internal control and input selector is through the I2C bus ! Control includes strengthening and sound.
The tuner is built in this module PHILIPS OM5610 . It is a complete digitally tuned tuner . It does not require any adjustment and is about the size of a matchbox ! The only drawback is its relatively high price , but thanks to him, tuner design has become very simple.
All these management ATMEL microcontroller . AT90S8535 processor belongs to the family of AVR . It has 8kB Flash memory , 512 bytes of EEPROM , 512 bytes SRAM , hardware PWM Real Time Clock and many more … And most importantly can be programmed in the system through ISP connector . Control is via keyboard and recycling .
All important information is displayed on the LCD alphanumeric display (16 * 1) . The amplifier is of course as a remote control RC- 5 (MAK 2002 Maxi ) .
The driver is written in BASCOM – AVR . This is an excellent compiler , which allows even less experienced developers to quickly write a very impressive program!
This language has a number of commands for the use of the many features AVR . It is ready handler : I2C , RC -5 , 1WIRE , LCD, RTC , SPI, WDT , PWM and more … Unfortunately, the use of this compiler associated with a substantial increase in the volume of the generated code. For this reason, the program has only basic functions such as the tuner has not been added RDS -u . But there is nothing in the way to add it to the system such as SAA 6588 ( controlled by I2C ) .
The amplifier has 3 inputs + tuner inside 😉 input for CD is initially slightly suppressed. The other zones do not have silencers . The signal from the tuner is amplified by 12.5 dB in the internal TDA7318 amplifier . Each input has a separate adjustable gain, bass and treble .
The receiver is a 9 channel memory cells . Step synthesis tuning station is 12kHz , and adjustment range is between 87.5 – 108MHz .
Dosya indirme LINK listesi (TXT formatında) link-184.zip şifre-pass: 320volt.com