MX803A Ver la hoja de datos (PDF) - MX-COM Inc

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MX803A

Audio Signaling Processor

MX-COM Inc  

Audio Signaling Processor

1. Block Diagram

3

MX803A PRELIMINARY INFORMATION

SIGNAL INPUT BIAS

(RX)

AUDIO IN

DIGITAL

NOISE

FILTER 1

RX FILTER

SWITCH

DIGITAL

NOISE

FILTER 2

QUALITY

METER

GATE TIME

GENERATOR

VDD

PROGRAMMABLE

(TX PERIOD)

TIMER

FREQUENCY

COUNTER

VBIAS

VSS

XTAL/

CLOCK

XTAL

CLOCK

GENERATOR

AUDIO SWITCH IN

AUDIO

SWITCH

TONE 1

GENERATOR

5-/2-TONE

DTMF 1

VBIAS

_

+

SUMMING

AMPLIFIER

TONE 2

GENERATOR

CUES/DTMF 2

PROGRAMMABLE

NOTONE

TIMER

COMMAND DATA

C-BUS

INTERFACE

REPLY DATA

CHIP SELECT

AND

CONTROL

LOGIC

INTERRUPT

SERIAL CLOCK

LOGIC INPUT

LOW

PASS

FILTER

SUMMING

SWITCH

CUES

CAL/CUES

SWITCH

CAL

LOW

PASS

FILTER

TONE 1 OUT

SUM IN

SWITCHED SUM OUT

SUM OUT

CAL/CUES OUT

TONE 2 OUT

SWITCH OUT

Figure 1: Block Diagram

© 1996 MX•COM, INC.

Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054

Doc. # 20480122.003

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