MX663 データシートの表示（PDF） - MX-COM Inc

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MX663

Call Progress Decoder

MX-COM Inc  

Call Progress Decoder

13

6.2 Timing

For the following conditions unless otherwise specified:

Xtal Frequency = 3.579545MHz, VDD = 3.3V to 5.0V, TAMB = 25°C.

tRP

tDRP

tNRP

tNDRP

tI

tL

tGI

tGD

tNG

tDI

tDE

tHIZ

tIR

tIP

Parameter

Call Progress Tone Response Time

Call Progress Tone De-response Time

Non Call Progress Signal Response Time

Non Call Progress Signal De-response Time

Burst Length Ignored

Burst Length Detected

Call Progress Tone Gap Length Ignored

Call Progress Tone Gap Length Detected

Non Call Progress Signal Gap Length Ignored

Data available to Interrupt pulse

" CS -Low " to Data Valid

" CS -High" to Output Tri-state

Interrupt Reset Time

Interrupt Low Pulse

Notes

1

1

1

1

1, 2, 3,

1, 2

4

Min.

145

145

40

4.0

MX663 Preliminary Information

Typ.

Max.

145

145

80

70

20

80

430

0.2

1.0

0.2

5.0 6.0

Units

ms

ms

ms

ms

ms

ms

ms

ms

ms

µs

µs

µs

µs

µs

Notes:

1. Timing also applies to Special Information Tones and Fax/modem Tones.

2. Only applies to burst of the same frequency.

3. For Special Information Tones and Fax/Modem tones, tGI is 15ms maximum.

4. If the gap > 90ms, a NO Signal state will be detected.

SIGIN

tI

tL

No Signal Call Progress

Single Tone

CPTone

620Hz

tGD

CPTone

620Hz

tGI

CPTone

620Hz

ENABLE

tRP

tDRP

Tri-state

D0

tDE

D1

D2

See Note 1

D3

"0"

CS

"0"

IRQ

tDI

tDI

tRP

tIP

Tri-state

tHIZ

Note

1. D2 is '1' only when the Call Progress signal, or a Non Call Progress signal, is a single frequency tone.

Figure 4: Timing Diagram: Call Progress Tone(s)

© 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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