Model

Description

Voltage range

Packaging form

D3703

Silence Detection circuit for sound system
When the sound system is playing the sound or fast forward/backward to detect the silence, output the control signal.

2.5V ～ 16.0V

SOP8

D7312

two-channel preamplifier with ALC
Low noise, high gain, ALC range 47dB.

5.0V ～ 12V

DIP14

D2538

single-channel preamplifier with ALC
Low noise, high gain, ALC range 40dB.

4.5V ～ 14V

SOP8

D3308

two-channel preamplifier with ALC
Low noise, high gain, ALC range 40dB.

4.5V ～ 14V

SOP14

D2068

Radio preamplifier circuit
With pre - amplification, recording amplification, MIC amplification, automatic level control, audio message Number switch and other functions.

+4V ～ +9V

SOP24

D2761

audio limiter circuit
The audio input signal is limited by the external resistor, according to the size of the resistance value The value ranges from 0.2 to 1.0Vrms.

+2.7V ~ +13.0V

SSOP10

D1237

stereo-audio power amplifier protection circuit
With open mute; Speaker protection; AC power supply monitoring; Output overload, output imbalance monitoring and other protection functions.

25V ～ 60V

SIP8

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