NT91214D 데이터 시트보기 (PDF) - Novatek Microelectronics
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NT91214D Datasheet PDF : 23 Pages
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AC Characteristics (continued)
Parameter
Auto-redial Break Time
Delay time Key valid to Signal Out
Key-in Debounce
Key Release Debounce Time
Key-in Tone Duration
Key-in Tone Frequency
Minimum Tone Duration Time
Min. Tone Inter-digit Pause
Redial Tone Duration
Redial Tone Inter-digit Duration
Symbol
TAOBK
TD
TKD
TKLD
TKTD
FKT
TMFD
TTIDP
TMFDR
TTIDPR
Min.
NT91214/15 Series
Typ.
2.2
0
21
5.2
23
437
94
96
94
96
Max.
Unit
Conditions
sec
* Optional
ms
ms
ms
ms
HZ
ms
ms
ms
ms
Comparisons of Specified vs. Actual Tone Frequencies
R/C
Spec.
Actual
R1
697
699.1
R2
770
771.5
R3
852
852.3
R4
941
942.0
C1
1,209
1,215.7
C2
1,336
1,331.7
C3
1,477
1,471.9
Error (%)
+0.31
+0.19
+0.03
+0.10
+0.57
-0.32
-0.35
Unit
Conditions
Hz
Hz
Hz
Hz
Fosc = 3.579MHz
Hz
Hz
Hz
5
V1.0
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