ULN3814A-The sinle chip audio integrated circuit

Published:2011/7/16 2:53:00 Author:leo | Keyword: Sinle chip, Audio, Integrated circuit | From:SeekIC

ULN3814A is a kind of integrated circuit used in pocket-sized radio and other kinds of radios. 1.ULN3814A integrated chip inner circuit diagram and pin functions:ULN3814A contains amplitude-modulated oscillator, frequency mixing circuit, frequency-modulating circuit, AGC, AFC, and audio power amplifier as well as voltage-stabilizing circuit. 2.Main parameters of ULN3814A:(1)No-working voltage coverage is from 3 V to 1 V and working voltage coverage is 6 V and 9 V. (2)Output power. Under the condition that Vcc is 7\6 V and R(L) is 8 ohms, the output power is 0.35W. When Vcc is 9 V and R(L) is 8 ohms, the output power is 0.6W.(3)Voltage gain and input resistance. When the voltage gain of the power amplifier is over 40 dB, input resistance is 200kohms.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/Amplifier_Circuits-Audio/ULN3814A_The_sinle_chip_audio_integrated_circuit.html

Print this Page | Comments | Reading(3)