STK4221II Description
of External Parts C3, C4 Input filter capacitors A filter formed with R5 or R6 can be used to reduce noise at high frequencies. Input coupling capacitors Used to block DC current. When the reactance of the capacitor increases at low frequencies, the dependence of 1/f noise on signal source resistance causes the output noise to worsen.
STK4221II Key Features
- Built-in muting circuit to cut off various kinds of pop noise
- Current mirror circuit application reduces distortion to 0.4% (THD)
- A filter formed with R5 or R6 can be used to reduce noise at high frequencies. Input coupling capacitors
- Used to block DC current. When the reactance of the capacitor increases at low frequencies, the dependence of 1/f noise
- To reduce the pop noise at the time of application of power, it is effective to increase C5, C6 that fix the time constan