HT9302C Просмотр технического описания (PDF) - Holtek Semiconductor
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HT9302C Datasheet PDF : 33 Pages
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HT9302 Series
Pulse Mode Electrical Characteristics
Symbol
Parameter
Test Conditions
VDD
Conditions
Min.
IPOH PO Output Source Current 2.5V VOH=2V
-0.2
IPOL
PO Output Sink Current 2.5V VOL=0.5V
0.2
PR
Pulse Rate
MODE pin is connected to VDD ¾
¾
MODE pin is opened
¾
M/B Make/Break Ratio
A resistor is linked between R2
and C1
¾
¾
No resistor is linked between
R2 and C1
¾
M/B ratio=40:60
¾
tPDP Pre-digit-pause Time
¾
M/B ratio=33:66
¾
tIDP
Inter-digit-pause Time
tM
Pulse Make Duration
tB
Pulse Break Duration
Pulse rate=10pps
¾
¾
Pulse rate=20pps
¾
A resistor is linked between R2
and C1
¾
¾
No resistor is linked between
R2 and C1
¾
A resistor is linked between R2
and C1
¾
¾
No resistor is linked between
R2 and C1
¾
fOSC=3.5795MHz, Ta=25°C
Typ.
Max. Unit
¾
¾ mA
0.6
¾ mA
10
¾
pps
20
¾
33:66
40:60
¾
%
¾
40 (10pps)
20 (20pps)
¾
ms
33 (10pps)
17 (20pps)
¾
800
¾
ms
500
¾
33 (10pps)
17 (20pps)
¾
ms
40 (10pps)
20 (20pps)
¾
66 (10pps)
33 (20pps)
¾
ms
60 (10pps)
30 (20pps)
¾
Tone Mode Electrical Characteristics
Symbol
Parameter
Test Conditions
VDD
Conditions
VTDC DTMF Output DC Level
¾
¾
ITOL
VTAC
RL
DTMF Sink Current
DTMF Output AC Level
DTMF Output Load
2.5V VDTMF=0.5V
¾ Row group, RL=5kW
2.5V THD£-23dB
ACR
THD
tTMIN
Column Pre-emphasis
Tone Signal Distortion
Minimum Tone Duration
2.5V Row group=0dB
2.5V RL=5kW
¾ Auto-redial
Others
9302G
tITPM Minimum Inter-tone Pause ¾ Auto-redial
Others
9302G
fOSC=3.5795MHz, Ta=25°C
Min. Typ. Max. Unit
0.45VDD
0.1
0.12
5
1
¾
¾
¾
¾
¾
¾
¾
0.155
¾
2
-30
82.5
100
85.5
106
0.7VDD
¾
0.18
¾
3
-23
¾
¾
¾
¾
V
mA
Vrms
kW
dB
dB
ms
ms
THD (Distortion) (dB) = 20 log ( V12 + V22+K Vn2 / Vi2 + Vh2 )
Vi, Vh: Row group and column group signals
V1, V2, ... Vn: Harmonic signals (BW=300Hz~3500Hz)
Rev. 1.30
6
May 13, 2009
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