■ Overview

The MN3307 is a 1024-stage ultra low voltage operation BBD variable delay line in audio frequency range. The device operates on +3 V supply and provides a signal delay up to 51.2 ms and is suitable for use as reverberation effect of low voltage operation audio equipment such as portable stereo, radio cassette recorder and microphone.

■ Features

• Variable signal delay of the audio signal : 1.024 to 51.2 ms

• Wide range of supply voltage : 1.8 to 5.0 V

• No insertion loss : Li=0 dB typ.

• Wide dynamic range : S/N=69 dB typ.

• Low distortion : THD=0.6 typ. (Vi=0.22 Vrms)

• Clock frequency range : 10 to 200 kHz (1.8 V≤VDD<4.0 V)

10 to 500 kHz (4.0 V≤VDD≤5.0 V)

• N-channel 2-layer silicon gate process

• 8-Pin Dual-In-Line Plastic Package

■ Applications

• Reverberation and echo effects of audio equipment such as radio cassette recorder, car radio, portable radio, portable stereo, echo microphone and Karaoke machine, etc.

• Sound effect of electronic musical instruments

• Variable or fixed delay of analog signals