器件名称:
KS8620
功能描述:
1 Chip CODEC for Digital Answering phone
文件大小:
73.54KB 共9页
简 介:
KS8620 INTRODUCTION 1 Chip CODEC for Digital Answering phone The KS8620 consists of on-chip PCM encoders, decoders (PCM CODECs) and PCM line filter. This device provide all the functions required to interface a fullduplex voice telephone circuit, digital answering phone. This device is designed to perform the transmit encoding and receive decoding as well as the transmit and receive filtering function in PCM system. Also it is intended to be used at the analog termination of a PCM line / trunk. This device provide the Band pass filtering of the analog signals prior to encoding and after decoding. This combination device performs the encoding and decoding of voice and call progress tones as well as the signaling and supervision information. 16-DIP-300 16-SOP-BD300 - SG ORDERING INFORMATION Device KS8620N Package 16-DIP-300 16-SOP- BD300 - SG Operating Temperature 0oC ~ + 70oC FEATURES Complete CODEC and filtering system Encoding / Decoding : 8 bits -law PCM On-chip auto zero, sample and hold, and precision voltage references Low power dissipation : 60mW ( operating ) 3mW ( standby ) + 5V operation TTL or CMOS compatible Automatic power down KS8620D PIN CONFIGURATION V BB GNDA VF RO V CC 1 2 3 4 16 VFI XI+ 15 VFXI14 GSX KS8620 13 TSX 12 FSX 11 DX 10 BCLK X 9 MCLK X FS R 5 DR BCLK R/CLKSEL MCLK R/PDN 6 7 8 KS8620 BLOCK DIAGRAM R2 1 Chip CODEC for Digital Answering phone 14 GSx VFxIR1 Auto-zero logic Switched Capacitor B.P.F 15 Analog In 16 + VFxI+ RC Ac……
