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參數(shù)資料
| 型號： | HT9302C |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 1-Memory/2-Memory Tone/Pulse Dialer |
| 中文描述： | 1-Memory/2-Memory音頻/脈沖撥號器 |
| 文件頁數(shù)： | 6/27頁 |
| 文件大小： | 284K |
| 代理商： | HT9302C |
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Pulse Mode Electrical Characteristics
f
OSC
=3.5795MHz, Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
I
POH
PO Output Source Current 2.5V V
OH
=2V
0.2
mA
I
POL
PO Output Sink Current
2.5V V
OL
=0.5V
0.2
0.6
mA
PR
Pulse Rate
MODEpinisconnectedtoV
DD
10
pps
MODE pin is opened
20
M/B
Make/Break Ratio
A resistor is linked between R2
and C1
33:66
%
No resistor is linked between
R2 and C1
40:60
t
PDP
Pre-digit-pause Time
M/B ratio=40:60
40 (10pps)
20 (20pps)
ms
M/B ratio=33:66
33 (10pps)
17 (20pps)
t
IDP
Inter-digit-pause Time
Pulse rate=10pps
800
ms
Pulse rate=20pps
500
t
M
Pulse Make Duration
A resistor is linked between R2
and C1
33 (10pps)
17 (20pps)
ms
No resistor is linked between
R2 and C1
40 (10pps)
20 (20pps)
t
B
Pulse Break Duration
A resistor is linked between R2
and C1
66 (10pps)
33 (20pps)
ms
No resistor is linked between
R2 and C1
60 (10pps)
30 (20pps)
Tone Mode Electrical Characteristics
f
OSC
=3.5795MHz, Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
TDC
DTMF Output DC Level
0.45V
DD
0.7V
DD
V
I
TOL
DTMF Sink Current
2.5V V
DTMF
=0.5V
0.1
mA
V
TAC
DTMF Output AC Level
Row group, R
L
=5k
0.12
0.155
0.18
Vrms
R
L
DTMF Output Load
2.5V THD
23dB
5
k
A
CR
Column Pre-emphasis
2.5V Row group=0dB
1
2
3
dB
THD
Tone Signal Distortion
2.5V R
L
=5k
30
23
dB
t
TMIN
Minimum Tone Duration
Auto-redial
Others
82.5
ms
9302G
100
t
ITPM
Minimum Inter-tone Pause
Auto-redial
Others
85.5
ms
9302G
106
THD (Distortion) (dB) = 20 log
V1
V2
Vn /
Vi
Vh
2
2
2
2
Vi, Vh: Row group and column group signals
V1, V2, ... Vn: Harmonic signals (BW=300Hz~3500Hz)
HT9302 Series
Rev. 1.20
6
September 30, 2002
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT9302D | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9302G | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9312 | 12-Memory Tone/Pulse Dialer |
| HT9312A | 12-Memory Tone/Pulse Dialer |
| HT9313C | 12-Memory Tone/Pulse Dialer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT9302CLT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| HT9302CT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| HT9302D | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:1-Memory/2-Memory Tone/Pulse Dialer |
| HT9302DLT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| HT9302DT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
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