KS8620 - 1 Chip CODEC for Digital Answering phone
Pin No 1 2 3 4 5 6 7 Symbol VBB GNDA VFRO VCC FSR DR BCLKR / CLKSEL 1 Chip CODEC for Digital Answering phone Description VBB = -5V + 5% Analog ground Analog output of the receiver filter Vcc = +5V + 5% Receive frame sync pulse.
8KHz pulse train.
PCM data input Logic input which selects either 1.53
www.DataSheet4U.com 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
KS8620 Features
* Complete CODEC and filtering system
* Encoding / Decoding : 8 bits µ-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
