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HT9320 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc

Part # HT9320
Description  22-Memory Tone/Pulse Dialer
PDF  30 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT9320 Datasheet(HTML) 10 Page - Holtek Semiconductor Inc

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
VDD
Conditions
TIDP
Inter-digit-pause
Time
¾
Pulse rate=10pps. No resistor
is linked between R1 and C5
(HT9320A/B/C/K)
¾
800
¾
ms
Pulse rate=10pps (HT9320H/L)
Pulse rate=10pps. A resistor
is linked between R1 and C5
(HT9320A/B/C/K)
¾
400
¾
Pulse rate=20pps
¾
500
¾
TM
Pulse Make
Duration
¾
A resistor is linked between
R2 and C1 (HT9320B/C/K/L)
¾
33 (10pps)
17 (20pps)
¾
ms
M/B=VSS (HT9320A)
M/B=VDD (HT9320H)
No resistor is linked between
R2 and C1 (HT9320B/C/K/L)
¾
40 (10pps)
20 (20pps)
¾
M/B=Floating (HT9320A)
M/B=VSS (HT9320H)
TB
pulse Break
Duration
¾
A resistor is linked between
R2 and C1 (HT9320B/C/K/L)
¾
66 (10pps)
33 (20pps)
¾
ms
M/B=VSS (HT9320A)
M/B=VDD (HT9320H)
No resistor is linked between
R2 and C1 (HT9320B/C/K/L)
¾
60 (10pps)
30 (20pps)
¾
M/B=Floating (HT9320A)
M/B=VSS (HT9320H)
TKT
Keytone Duration
¾ Pulse mode (HT9320K)
¾
34
¾
ms
FKTC
Keytone Carrier
¾ Pulse mode (HT9320K)
¾
1.2
¾
kHz
Tone Mode Electrical Characteristics
fOSC=3.5795MHz, Ta=25°C
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
VDD
Conditions
VTDC
DTMF Output DC Level
¾¾
0.45VDD ¾ 0.7VDD
V
ITOL
DTMF Sink Current
2.5V VDTMF=0.5V
0.1
¾¾
mA
VTAC
DTMF Output AC Level
¾ Row group, RL=5kW
0.12
0.155 0.18
Vrms
RL
DTMF Output Load
2.5V THD£-23dB
5
¾¾
kW
ACR
Column Pre-emphasis
2.5V Row group=0dB
1
2
3
dB
HT9320
10
July 21, 1999



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