MX663DW Ver la hoja de datos (PDF) - MX-COM Inc

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MX663DW

Call Progress Decoder

MX-COM Inc  

Call Progress Decoder

5. Application

9

MX663 Preliminary Information

5.1 General

Apply a reset after power-up by taking the ENABLE pin low. This places the device in a powersave mode and

resets the internal circuits. It also places the data word output (D0-D3) in a high impedance state, regardless

of the level on the CS pin.

From this mode the device can be returned to normal operation without any additional settling time, when

using the component values recommended in Figure 2. The tone response times remain the same and are

given in section 6.1.

An interrupt is produced when the decode state is changed. This interrupt is reset by CS going to logic "0".

When CS is permanently at "0", the interrupt condition is a 5 µs logic "0" pulse on the IRQ pin. When CS is

set to logic "1", the data word output (D0-D3) goes into a high impedance state.

5.2 Signal Category Reference

Signal Category

No Signal

Voice and

Non-Call Progress

Signal

Call Progress Signal

Special Information

Tone (SIT Tone)

FAX/MODEM

Unused Codes

Sub-Category

Not Single Tone

Single Tone outside of CP band

Dual Tone without 620Hz

Dual Tone with 620Hz

Single Tone not 620Hz

Single Tone 620Hz

N/A

0000

0X10

0010

0110

0XX1

0001

0011

0101

0111

0100

Output Code D3:0

Low

High

1100

1000

Reserved for future use

1 0 0 1, 1 0 1 0, 1 0 1 1, 1 1 0 1, 1 1 1 0, 1 1 1 1

Table 4: Signal Category

© 1999 MX-COM Inc.

www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054

Doc. # 20480165.003

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

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