HT93214 Ver la hoja de datos (PDF) - Holtek Semiconductor
Número de pieza
componentes Descripción
Fabricante
HT93214 Datasheet PDF : 16 Pages
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HT93214 Series
Symbol
Parameter
Test Conditions
VDD
Conditions
TFP
Pause Time After Flash
2.5V
¾
TRP
One-key Redialing Pause Time 2.5V
¾
FOSC System Frequency
¾
¾
TDB
Key-in Debounce Time
2.5V
¾
TBRK Break Time For One-key Redialing 2.5V
¾
THKDL Off-hook Delay Time
10pps
2.5V
20pps
Min. Typ. Max. Unit
¾
800
¾
ms
¾
800
¾
ms
¾
3.58
¾
MHz
¾
20
¾
ms
¾
2.2
¾
s
¾
800
¾
ms
¾
500
¾
Pulse Mode Electrical Characteristics
Symbol
Parameter
IPOH PO Output Source Current
IPOL
PO Output Sink Current
PR
Pulse Rate
M/B
TPDP
Make/Break Ratio
Pre-digit-pause Time
TIDP Inter-digit-pause Time
TM
Pulse Make Duration
TB
Pulse Break Duration
TP
Pause Time
Test Conditions
VDD
Conditions
2.5V VOH=2V
2.5V VOL=0.5V
MODE pin is
¾ connected to VDD
MODE pin is opened
¾
¾
M/B=33:66 (10 pps)
¾
M/B=33:66 (20 pps)
10 pps
¾
20 pps
10 pps, M/B=1/2
¾
20 pps, M/B=1/2
10 pps, M/B=1/2
¾
20 pps, M/B=1/2
¾
¾
FOSC=3.5795MHz, Ta=25°C
Min. Typ. Max. Unit
-0.2
¾
¾
mA
0.2
0.6
¾
mA
¾
10
¾
pps
¾
20
¾
¾ 33:66 ¾
%
¾
33
¾
ms
¾
17
¾
¾
800
¾
ms
¾
500
¾
¾
33.3
¾
ms
¾
16.7
¾
¾
66.6
¾
ms
¾
33.3
¾
¾
2.2
¾
s
Tone Mode Electrical Characteristics
Symbol
Parameter
VTDC
ITOL
VTAC
RL
ACR
THD
TTMIN
TITPM
DTMF Output DC Level
DTMF Sink Current
DTMF Output AC Level
DTMF Output Load
Column Pre-emphasis
Tone Signal Distortion
Minimum Tone Duration
Minimum Inter-Tone Pause
Test Conditions
VDD
Conditions
¾ No load
2.5V VDTMF=0.5V
Row group,
¾ RL=5kW
2.5V THD£-23dB
2.5V Row group=0dB
2.5V RL=5kW
¾ Auto-redial
¾ Auto-redial
THD (Distortion) (dB) = 20 log ( V12 + V22 +....+ Vn2 / Vi2 + Vh2 )
Vi, Vh: Row group and column group signals
V1, V2, ... Vn: Harmonic signals (BW=300Hz~3500Hz)
FOSC=3.5795MHz, Ta=25°C
Min. Typ. Max. Unit
0.45VDD ¾
0.1
¾
0.7VDD V
¾
mA
0.12 0.155 0.18 Vrms
5
¾
¾
kW
1
2
3
dB
¾
-30 -23
dB
¾
94
¾
ms
¾
96
¾
ms
Rev. 1.10
5
October 2, 2002
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