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HT9020B Datenblatt(Datasheet) 3 Page - Holtek Semiconductor Inc

Teile-Nr. HT9020B
Beschreibung  Call Progress Tone Detector
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Hersteller  HOLTEK [Holtek Semiconductor Inc]
Homepage  http://www.holtek.com
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 3 page
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Electrical Characteristics
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
VDD
Operating Voltage
¾¾
2.5
¾
5.5
V
IDD
Operating Current
5V
Functions enabled
¾¾
2mA
2.5V
No load
¾¾
0.8
mA
ISTB
Standby Current
2.5V
Functions disabled or EN=1
¾¾
1
mA
GDV
Detection Level
5V
fIN=305~640Hz
-36
¾
0
dBm
2.5V
ENV=1
-42
¾-8
dBm
GRL
Rejection Level
¾
All frequency, ENV=0
¾¾
-50
dBm
fRL
Rejection Out-band
Frequency
¾
V
£0 dBm, ENV=0
¾¾
200
Hz
fRH
800
¾¾
Hz
tQI
Detection Pause Time
¾
VSIN
£-50dBm, ENV=0
40
¾¾
ms
tDD
Detection Signal Time
¾
In-band signal input, ENV=1
40
¾¾
ms
tB
Rejection Pause Time
¾
VSIN
£-50dBm, ENV=1
¾¾
20
ms
tDH
Envelope Output Delay Time
¾
Time for high output
¾
40
¾
ms
tDI
¾
Time for low output
¾
40
¾
ms
tRD
Rejection Noise Time
¾
VSIN=Any signal, ENV=0
¾¾
20
ms
tST
Oscillator Start-up Time
¾¾
¾
0.8
2
sec
ZI
Input Impedance
¾
fIN=200~3.4kHz
1.0
¾¾
M
W
VREF
Reference Voltage
¾
No load
2.4
2.5
2.6
V
ZREF
Output Impedance
¾¾
¾
10
20
M
W
VIH
Logic Input High Voltage
5V
¾
3.5
¾¾
V
VIL
Logic Input Low Voltage
5V
¾¾
¾
1.5
V
IIH
Logic Input High Current
5V
VIH=0.5V
¾¾
0.1
mA
IIL
Logic Input Low Current
5V
VIL=0V
-0.1
¾¾
mA
IOH
Output High Current
5V
VOH=4.5V
¾¾
-0.5
mA
IOL
Output Low Current
5V
VOL=0.5V
2.0
¾¾
mA
ISO
Pull-down Current
5V
¾¾
25
35
mA
HT9020B
Rev. 1.20
3
March 31, 2003




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