The TDA7053 consists of a class B stereo amplifier, formed by two amplifiers connected in bridge (Bridge Tied Load or BTL) for operation with low supply voltage (from 15 to less than 3 V), being indicated for application in portable audio equipment. It is presented in a 16-pin DIL housing. Among the main advantages of this integrated we highlight:
- No external components required
- Low output offset voltage (100 mV)
- Very low crossover distortion
- Low radiation (important factor to eliminate feedback in radios with ferrite antennas)
- Stand-by switch (mute) with a current drain of only 1 uA (TDA7053A)
- Excellent ripple rejection (typically 40 dB between 100 Hz and 10 kHz, Rs = 0 ohm)
- Voltage gain with feedback fixed at 40 dB (6 V of supply and load as shown in the diagram), resulting in an excellent balance between the channels.
- Internal thermal protection
For a total distortion of 10% we have the characteristics of the table:
