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參數(shù)資料
型號: HT9315BL
廠商: Holtek Semiconductor Inc.
英文描述: 15-Memory Tone/Pulse Dialer
中文描述: 15內(nèi)存音頻/脈沖撥號器
文件頁數(shù): 6/27頁
文件大小: 309K
代理商: HT9315BL
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
82.5
ms
T
ITPM
Minimum Inter-tone Pause
Auto-redial
85.5
ms
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)
HT9315 Series
Rev. 1.20
6
October 1, 2002
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