General Description

The HT8970 is an echo/surround effect processor. It is designed for various audio systems including karaoke, television, sound equipments, etc. The chip consists of a built-in pre-amplifier, VCO or Voltage Control OSC, 20Kb SRAM, A/D and D/A converters as well as delay time control logic.

Features

Operating voltage: 4.5V~5.5V

ADM algorithm

Low noise

Echo mode:-85dB

Surround mode:-90dB

Low distortion rate

Echo mode: 1

Surround mode: 0.2

Built-in 20Kb SRAM

Automatic reset function

Package type: 16-pin DIP/SOP

Applications

Television

Karaoke systems

Video disc player

Sound equipments