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HT9172 Datasheet(PDF) 4 Page - Holtek Semiconductor Inc

Part # HT9172
Description  DTMF Receiver
PDF  13 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT9172 Datasheet(HTML) 4 Page - Holtek Semiconductor Inc

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A.C. Characteristics
fOSC=3.5795MHz, Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
DTMF Signal
Input Signal Level
3V
-36
¾-6
dBm
5V
-29
¾
1
Twist Accept Limit (Positive)
5V
¾
10
¾
dB
Twist Accept Limit (Negative)
5V
¾
10
¾
dB
Dial Tone Tolerance
5V
¾
18
¾
dB
Noise Tolerance
5V
¾-12
¾
dB
Third Tone Tolerance
5V
¾-16
¾
dB
Frequency Deviation Acceptance
5V
¾¾
±1.5
%
Frequency Deviation Rejection
5V
±3.5
¾¾
%
tPU
Power Up Time (See Figure 4.)
5V
¾
30
¾
ms
Gain Setting Amplifier
RIN
Input Resistance
5V
¾¾
10
¾
M
W
IIN
Input Leakage Current
5V
VSS<(VVP,VVN)<VDD
¾
0.1
¾mA
VOS
Offset Voltage
5V
¾¾
±25
¾
mV
PSRR
Power Supply Rejection
5V
100 Hz
-3V<VIN<3V
¾
60
¾
dB
CMRR
Common Mode Rejection
5V
¾
60
¾
dB
AVO
Open Loop Gain
5V
¾
65
¾
dB
fT
Gain Band Width
5V
¾¾
1.5
¾
MHz
VOUT
Output Voltage Swing
5V
RL>100k
W¾
4.5
¾
VPP
RL
Load Resistance (GS)
5V
¾¾
50
¾
k
W
CL
Load Capacitance (GS)
5V
¾¾
100
¾
pF
VCM
Common Mode Range
5V
No load
¾
3.0
¾
VPP
Steering Control
tDP
Tone Present Detection Time
5V
5
11
14
ms
tDA
Tone Absent Detection Time
5V
¾
4
8.5
ms
tACC
Acceptable Tone Duration
5V
¾¾
42
ms
tREJ
Rejected Tone Duration
5V
20
¾¾
ms
tIA
Acceptable Inter-digit Pause
5V
¾¾
42
ms
tIR
Rejected Inter-digit Pause
5V
20
¾¾
ms
tPDO
Propagation Delay (RT/GT to DO)
5V
¾
811
ms
tPDV
Propagation Delay (RT/GT to DV)
5V
¾
12
¾ms
tDOV
Output Data Set Up (DO to DV)
5V
¾
4.5
¾ms
tDDO
Disable Delay (OE to DO)
5V
¾
300
¾
ns
tEDO
Enable Delay (OE to DO)
5V
¾
50
60
ns
Note: DO=D0~D3
HT9172
Rev. 1.00
4
March 30, 2006



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