TP11368VSLASHNOPB datasheet(2/20 Pages) TI1

2 / 20 page

TP11368

Octal Adaptive Differential PCM Processor

General Description

The TP11368 is an octal (8) channel Adaptive Differential

Pulse Code Modulation (ADPCM) transcoder, fully compat-

ible to ITU G.726 recommendation in 40 kbps, 32 kbps,

24 kbps, 16 kbps and ANSI 32 kbps modes. The TP11368

ADPCM processor can operate on up to 16 independent

channels in an 8 kHz frame. Each channel is individually

configured, supporting both full and half duplex operation. All

input/output transfers occur on an interrupt basis using se-

rial, double buffered data registers. Together with National’s

TP3054/57 COMBO® or TP3070/71 COMBO II devices, the

TP11368 forms complete ADPCM channels with Codec/

filtering.

Features

CCITT G.726 compatible at 40, 32, 24, 16 kbps

ANSI T1.301 compatible at 32 kbps

16-channel half-duplex (encode or decode) or 8-channel

full-duplex operation in 8 kHz frame

Each channel individually configurable

Selectable µ-law or A-law PCM coding

Asynchronous 16 MHz master clock operation

TTL and CMOS compatible inputs and outputs

28-pin PLCC or 24-pin DIP packages

Power consumption of typ. 6 mW at +5V per full-duplex

channel

On-Chip Power-On-Reset

−40˚C to +85˚C operating temperature range

Single 5V supply

Block Diagram

TRI-STATE® and COMBO® are registered trademarks of National Semiconductor Corporation.

DS012902-1

FIGURE 1. Block Diagram

March 1997

DS012902

TP11368V/NOPB датащи(PDF) 2 Page - Texas Instruments