NE5900DK中文資料飛利浦?jǐn)?shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

DESCRIPTION

The NE5900 call progress decoder (CPD) is a low cost, low power CMOS integrated circuit designed to interface with a microprocessor-controlled smart telephone capable of making preprogrammed telephone calls. The call progress decoder information to permit microprocessor decisions whether to initiate, continue, or terminate calls. A tri-state, 3-bit output code indicates the presence of dial tone, audible ring-back, busy signal, or re-order tones.

FEATURES

? Fully decoded tri-state call progress status output

? Works with traditional, precision, or PBX call progress tones

? Low power consumption

? Low cost 3.58MHz crystal or clock

? No calibration or adjustment

? Interfaces with LSTLL, CMOS, NMOS

? Easy application

APPLICATIONS

? Modems

? PBXs

? Security equipment

? Auto dialers

? Answering machines

? Remote diagnostics

? Pay telephones