Build Your Own Stereo Preamplifier: TCA5500 Circuit Diagram

Description

Frequently, the need arises to construct a straightforward preamplifier circuit, employing a minimal number of components and facilitating easy construction. This particular design utilizes an operational amplifier. The Motorola TCA5500 is employed, which is a dual amplifier incorporating outputs for controlling volume, balance, treble, and bass levels. Adjustments of all these parameters are achieved through linear potentiometers, significantly enhancing the ease of assembly. The positioning of these potentiometers should ideally be located as close as possible to IC1 to minimize any potential noise generation. The circuit does not require a substantial current to operate effectively.

TCA5500 Motorola

The Motorola TCA5500 is a versatile integrated circuit (IC) commonly used as a dual operational amplifier. It offers two independent amplifier stages, providing flexibility for various applications. This IC is characterized by its high gain, low noise performance, and stable output characteristics. It’s a frequently used component in audio circuits, instrumentation, and general-purpose amplification tasks. The TCA5500 is particularly popular due to its ease of use and relatively low cost, making it a reliable choice for many circuit designs. Its dual nature allows for sophisticated signal processing and control applications.

Circuit diagram

Circuit diagram

Part List

  • R1-2-3-4=100 Kohms
  • RV1-2-3-4=100 Kohms Linear pot.
  • C1-2-8-9=4.7uF 63V
  • C3-4=100nF 100V MKT
  • C5-14=100uF 40V
  • C6-7=47nF 100V MKT
  • C10-11-12-13=220nF 100V MKT
  • C15-16=10uF 63V