Type: integrated circuit
Kind: low-frequency power amplifier, stereo
Supply voltage (bipolar-positive and negative towards the common conductor (ground, base-board-pin 16): ± 35 VDC recommended; ± 52.5 VDC max
Quiescent current Icco (no input signal;Ucc=± 42 VDC): 20 mA min 40 mA typ 100 mA max
Output power Po:
-THD = 0.4%, f = 20Hz ÷ 20kHz: 50 W min
-Ucc=±31 VDC, THD= 1.0%,RL = 4 Ω, f = 1kHz: 55 W min
Total harmonic distortion THD (Po = 1.0 W, f = 1 kHz): 0.3 %
Low frontier frequency fl (Po=1.0 W, +0 dB toward DC VAC ): 20 Hz
High frontier frequency fh (Po=1.0 W, –3 dB toward DC VAC ): 50 kHz
Input impedance ri: (Po = 1.0 W, f = 1 kHz): 55 kΩ
Operating substrate temperature Tc: +125 °C
Storage temperature Tstg: -30 ºC ÷ +125 °C
-the couple of (identical) channels (an independent amplifiers) have differential input and quasi-complementary output stage, performed by Darlington diagram. It`s pins are compatible in the output range of 6 W ÷ 50 W and enable easy design. Small-sized package whose pin assignment is the same as that of the STK4101II series.
-VAC-Voltage Amplification Coefficient (voltage gain)
-by reason of the fact, that 20lg(1/√ 2)= –10lg(2)~ –3.0103..., то –3 dB responses to relation VAC(fh)/VAC(0)=1/√ 2=0.7071...