FX663 Consumer Microcircuits Limited, FX663 Datasheet - Page 13

• Manufacturer Part Number: FX663
• Description: Call Progress Decoder
• Manufacturer: Consumer Microcircuits Limited

1.7.1
1999 Consumer Microcircuits Limited
Note 1:
ENABLE
D0
D1
D2
D3
CSN
SIGIN
IRQN
SIGIN
ENABLE
D0
D1
D2
D3
CSN
IRQN
Electrical Performance (continued)
Tri-state
Tri-state
D2 is '1' only when the Call Progress signal, or a Non Call Progress signal, is a single
frequency tone.
"0"
t
DE
t
t
I
I
t
See Note 1
"0"
DE
See Note 1
"0"
"0"
"0"
No Signal Call Progress
Figure 5 Timing Diagram: Non Call Progress Signal
No Signal
Figure 4 Timing Diagram: Call Progress Tone(s)
Single Tone
t
t
RP
NRP
Non Call
Progress Signal
t
t
t
DI
L
DI
t
L
t
DRP
13
t
t
DI
NG
CPTone
620 Hz
Non Call
Progress Signal
t
IP
t
GD
t
RP
CPTone
620 Hz
t
NDRP
t
IP
t
GI
CPTone
620 Hz
Tri-state
t
HIZ
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