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參數(shù)資料
| 型號： | FX633 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Call Progress Tone Detector |
| 中文描述： | 呼叫進展音探測器 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 331K |
| 代理商： | FX633 |
Call Progress Tone Detector
FX633
1996 Consumer Microcircuits Limited
11
D/633/3
1.7.1
Electrical Performance
(continued)
Figure 5 Timing Diagram: Call Progress Tone(s) to Non Call Progress Signal
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz, V
DD
= 3.3V to 5.0V, Tamb = - 40°C to +85°C, S/N = 20dB.
Notes
Min.
Typ.
Max.
Units
Signal Timings (ref. Figures 3, 4 and 5)
t
I
t
L
t
GI
t
GD
t
RP
t
DRP
t
GDR
t
NG
t
NRP
t
DNRP
t
CH
Burst Length Ignored
70
ms
Burst Length Detected
145
ms
Call Progress Tone Gap Length Ignored
7
20
ms
Call Progress Tone Gap Length Detected
7
40
ms
Call Progress Tone Response Time
145
ms
Call Progress Tone De-response Time
145
ms
Gap Detected Recorded
8
6
ms
Non Call Progress Signal Gap Length Ignored
9
80
ms
Non Call Progress Signal Response Time
145
ms
Non Call Progress signal De-response Time
80
ms
State Change
0
ms
Notes:
7.
8.
9.
Only applies to bursts of the same frequency.
To acknowledge a short tone gap
≥
40 ms, No Signal is indicated for a minimum of 6ms.
If the gap > 90 ms, a No Signal state will be decoded.
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