參數(shù)資料
型號(hào): HT9170D
廠商: Holtek Semiconductor Inc.
英文描述: DTMF Receiver
中文描述: 雙音多頻接收器
文件頁(yè)數(shù): 6/12頁(yè)
文件大?。?/td> 124K
代理商: HT9170D
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
V
DD
Conditions
R
L
Load Resistance (GS)
5V
50
k
C
L
Load Capacitance (GS)
5V
100
pF
V
CM
Common Mode Range
5V
No load
3.0
V
PP
Steering Control
t
DP
Tone Present Detection Time
5
16
22
ms
t
DA
Tone Absent Detection Time
4
8.5
ms
t
ACC
Acceptable Tone Duration
42
ms
t
REJ
Rejected Tone Duration
20
ms
t
IA
Acceptable Inter-digit Pause
42
ms
t
IR
Rejected Inter-digit Pause
20
ms
t
PDO
Propagation Delay
(RT/GT to DO)
8
11
s
t
PDV
Propagation Delay
(RT/GT to DV)
12
s
t
DOV
OutputDataSetUp(DOtoDV)
4.5
s
t
DDO
Disable Delay (OE to DO)
300
ns
t
EDO
Enable Delay (OE to DO)
50
60
ns
Note: DO=D0~D3
HT9170
6
December 20, 1999
4
5
6
1
6
5
4
7
) )
. / 0 /
- % /
)
)
)
)
) 1
-
'
%
. - "
: 2 '
;
: 3
) ' ;
% %
1
"
1 1 <
) )
% %
4 7 6
1 1 <
1 1 <
1
"
/
1 ! "
1 ! "
Figure 1. Test circuit
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