器件名称:
TP3057A
功能描述:
MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
文件大小:
249.13KB 共17页
简 介:
TP3054A, TP3057A, TP13054A, TP13057A MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER SCTS026C – SEPTEMBER 1992 – REVISED JULY 1996 D Complete PCM Codec and Filtering Systems Include: – Transmit High-Pass and Low-Pass Filtering – Receive Low-Pass Filter With (sin x)/x Correction – Active RC Noise Filters – -Law or A-Law Compatible Coder and Decoder – Internal Precision Voltage Reference – Serial I/O Interface – Internal Autozero Circuitry D D D D D D D D D -Law . . . TP3054A and TP13054A A-Law . . . TP3057A and TP13057A ± 5-V Operation Low Operating Power . . . 50 mW Typ Power-Down Standby Mode . . . 3 mW Typ Automatic Power Down TTL- or CMOS-Compatible Digital Interface Maximizes Line Interface Card Circuit Density Improved Versions of National Semiconductor TP3054, TP3057, TP3054-X, TP3057-X description The TP3054A, TP3057A, TP13054A, and TP13057A are comprised of a single-chip PCM codec (pulse code-modulated encoder and decoder) and PCM line filter. These devices provide all the functions required to interface a full-duplex (2-wire) voice telephone circuit with a TDM (time-division-multiplexed) system. These devices are pin-for-pin compatible with the National Semiconductor TP3054A and TP3057A, respectively. Primary applications include: DW OR N PACKAGE (TOP VIEW) Line interface for digital transmission and switching of T1 carrier, PABX, and central office telephone systems Subscriber line concentrators Digital-encryption systems Digital voice-band dat……
