DS

Features 24-Bit Fixed-point DSP core delivering up to 50 MIPS 2x512 x24BitofRAMforX andYdatamemory 1536 x 24 Bit of RAM for Program 1536 x 24 Bit of Additional RAM memory Serial Audio Interface Debug Port Control Interface for external GPIOs SPI and I2 C for communication PLL Clock Oscillator 5V-tolerant 3V I/O interface Block Diagram: TDA7502 Block diagram Datasheet for TDA7502

CLASS B PUSH PULL AMPLIFIER The circuitry for the Class B Push-Pull amplifier operation is the same as that for the Class A operation except that the device are biased at cutoff. ADVANTAGES OF CLASS B PUSH PULL AMPLIFIER OVER CLASS A It is possible to obtain greater power output. Class B power amplifier provides practically 4 times the power supplied by a single ended amplifier provided load resistance remains the same It gives higher operating efficiency (theoretically 78.5%). It is primarily due to the fact that no power is drawn by the circuit under Zero signal condition. Because of above advantages, a push-pull class B transistor circuit is preferred in systems Where the power supply is limited, such as those operating from solar cells or battery. The automatic cancellation of all even order harmonics from the output makes class B push-pull amplifiers highly desirable communication sound equipment. DRAWBACKS OF CLASS B PUSH-PULL AMPLIFIER The Harmonic distortion is Higher. Self ...