HT8955A中文资料Voice Echo数据手册Holtek规格书

描述 Description

General Description
The HT8955A is a CMOS LSI digital audio signal delay processor. It is designed for audio system applications including echo generators, karaoke systems, sound effect generators, etc.

特性 Features

• Operating voltage: 5.0V
• Long delay time
– 0.8 seconds (SEL=VSS, 256K DRAM)
– 0.2 seconds (SEL=VDD/open, 64K DRAM)
• 25kHz sampling rate
• Continuous variable delay time
• Built-in pre-amplifier
• Low distortion
• High S/N ratio
• Wide frequency response
• PCM 10-bit A/D and D/A converters
• 24-pin DIP packageApplications
• Mixers
• Karaoke systems
• Echo generators
• Sound effect generators