The ChipSourceTek-TC4158 is an ultra-low EMI mono digital audio amplifier with anti-distortion, no filter required and 5W high efficiency. Its unique anti-distortion function can dynamically adjust the system gain by detecting the distortion of the output signal, which not only effectively prevents the damage of the overload output to the speaker, but also brings a comfortable hearing feeling. In practical applications, the amplifier can be set up by software or hardware to work in anti-distortion mode and ordinary mode, where the software is controlled by a pulse, the hardware is controlled by a level, and the application is very flexible.

    The ChipSourceTek-TC4158 uses advanced technology to greatly reduce EMI interference over the full bandwidth range, minimizing the impact on other components. The output does not need the filter PWM modulation structure and the feedback resistance built-in mode, reducing the external components, PCB area and system cost. At an operating voltage of 5V, it is capable of delivering 5W of output power to a 2Ω load.

    ChipSourceTek-TC4158 has built-in overcurrent protection, overheat protection and undervoltage protection functions to effectively protect the chip from being damaged under abnormal working conditions. And the spread spectrum technology is used to fully optimize the new circuit design, and the efficiency of up to 90% is more suitable for low voltage, high power output audio system.

    The ChipSourceTek-TC4158 is available in an SOP-8 package with a rated operating temperature range of -40 ° C to 85 ° C, ensuring reliability and stability in different operating environments.

    ChipSourceTek-TC4158 features include:

•     Anti-distortion function, working mode can be set by software or hardware

•     Output power: 3.0W(4Ω load), 3.8W(3Ω load), 5.0W(2Ω load)

•     Operating voltage range: 2.5V ~ 5.5V

•     0.1%THD+N (2.0W output power, 5V supply, 2Ω load)

•     Excellent full bandwidth EMI rejection

•     Excellent "power on, power off" noise suppression

•     Up to 90% efficiency

•     High PSRR: -80dB (217Hz)

•     Overcurrent protection, overheat protection, undervoltage protection

•     The package is in SOP-8 format

    ChipSourceTek-TC4158 is used in a wide range of applications, including but not limited to USB 2.1 audio, plug-in 2.1 audio, mobile 2.1 audio, as well as a variety of audio devices such as box-to-box and ordinary plug-in audio. Its high performance, low power consumption and excellent protection mechanism make it the preferred solution for modern audio equipment.

   ChipSourceTek-TC4158 pin diagram and pin description are as follows:

    | pin number | Pin Name | Description |

    |--------|----------|------|

    | 1 | VDD | The power input is |

    | 2 | GND | The grounding terminal |

    | 3 | IN+ | Analog audio input positive |

    | 4 | IN- | Analog audio input negative |

    | 5 | SW+ | The positive output of the switch is |

    | 6 | SW- | The negative end of the switch |

    | 7 | EN | Enables the controller |

    | 8 | NC | The suspended end |

    Typical application circuits for ChipSourceTek-TC4158 include:

1.     USB 2.1 Speaker circuit: Suitable for a variety of portable speaker devices, with low power consumption, high efficiency advantages.

2.     Card speaker circuit: widely used in home and office environments, providing stable and reliable sound quality output.

3.     Mobile speaker circuit: suitable for outdoor activities or mobile occasions, with good anti-interference ability and protection mechanism.

4.     Speaker circuit: For sound systems that require dual channel output to provide clear, distortion-free sound.

    A block diagram of the ChipSourceTek-TC4158 shows its internal structure and workflow. The core part includes anti-distortion module, power amplifier module and protection module. The anti-distortion module monitors the distortion of the output signal in real time and adjusts the gain dynamically, thus ensuring the stability and high quality of the audio output. The power amplifier module is responsible for amplifying the processed signal and driving the speaker to sound. The protection module monitors the working status of the chip and takes protective measures to prevent chip damage once abnormal conditions such as over current, over heat or under voltage are detected.

    ChipSourceTek-TC4158 with its excellent performance and wide application prospects, will become the leader in the field of digital audio amplifiers in the future. Whether in consumer electronics or professional audio, it will play an important role in bringing users a better audio experience.