參數(shù)資料
型號: HT9200
廠商: Holtek Semiconductor Inc.
英文描述: DTMF Generators
中文描述: 雙音多頻發(fā)電機
文件頁數(shù): 4/8頁
文件大?。?/td> 282K
代理商: HT9200
Absolute Maximum Ratings*
Supply Voltage.................................–0.3V to 6V
Input Voltage.................... V
SS
–0.3 to V
DD
+
0.3V
Storage Temperature.................–50
°
C to 125
°
C
Operating Temperature...............–20
°
C to 75
°
C
*Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maxi-
mum Ratings” may cause substantial damage to the device. Functional operation of this
device at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Ta=25
°
C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
2
5.5
V
I
DD
Operating Current
2.5V
S/P=V
DD
,D0~D3=V
SS
,
CE =V
SS
, No load
240
2500
μ
A
5.0V
950
3000
V
IL
V
IH
“Low” Input Voltage
VSS
0.2V
DD
V
DD
1
V
“High” Input Voltage
0.8V
DD
V
I
STB
Standby Current
2.5V
S/P=V
DD
,CE =V
DD
,
No load
μ
A
5.0V
2
R
P
Pull-high Resistance
2.5V
V
OL
=0V
120
180
270
k
5.0V
45
68
100
t
DE
DTMF Output Delay
Time (Parallel Mode)
5V
t
UP
+6
t
UP
+8
ms
V
TDC
DTMF Output DC
Level
2V~
5.5V
DTMF Output
0.45V
DD
0.75V
DD
V
I
TOL
DTMF Sink Current
2.5V
V
DTMF
=0.5V
–0.1
mA
V
TAC
DTMF Output AC
Level
2.5V
Row group, R
L
=5k
0.12
0.15
0.18
Vrms
A
CR
R
L
Column Pre-emphasis
2.5V
Row group=0dB
t
HD
–23dB
1
2
3
dB
k
DTMF Output Load
2.5V
5
t
HD
Tone Signal
Distortion
2.5V
R
L
=5k
–30
–23
dB
f
CLK
Clock Input Rate
(Serial Mode)
100
500
kHz
t
UP
Oscillator Starting
T he time from CE
falling edge to normal
oscillator operation
10
ms
f
OSC
System Frequency
Crystal=3.5795MHz
3.5759
3.5795
3.5831
MHz
HT9200A/B
4
21st Aug ’98
相關(guān)PDF資料
PDF描述
HT9200A DTMF Generators
HT9200B DTMF Generators
HT9202A 1-Memory/2-Memory Tone/Pulse Dialer
HT9202B 1-Memory/2-Memory Tone/Pulse Dialer
HT9202C 1-Memory/2-Memory Tone/Pulse Dialer
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