Part Number
|
NE5900 |
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
|
NE5900
|
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.
I...
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