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NE5900DK

Part Number	NE5900DK
Manufacturer	Philipss
Description	Call progress decoder
Published	May 7, 2005
Detailed Description	Philips Semiconductors Product specification Call progress decoder NE5900 DESCRIPTION The NE5900 call progress decod...
Datasheet	NE5900DK PDF File

Overview

Philips Semiconductors Product specification Call progress decoder NE5900 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.
A front-end bandpass filter is accomplished with switched capacitors.
The bandshaped signal is detected and the cadence is measured prior to output decoding.
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