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HT95R45 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc

Part # HT95R45
Description  Phone 8-Bit MCU with DTMF Receiver & CPT
PDF  76 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT95R45 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
DTMF Receiver
- Gain Setting Amplifier (fSYS= 3.5795MHz)
RIN
Input Resistance
5V
¾¾
10
¾
M
W
IIN
Input Leakage Current
5V
VSS<(WP, WN)<VDD
¾
0.1
¾mA
VOS
Offset Voltage
5V
¾¾
±25
¾
mV
PSRR
Power Supply Rejection
5V
100Hz;
-3V<VIN<+3V
¾
60
¾
dB
CMRR
Common Mode Rejection
5V
100Hz;
-3V<VIN<+3V
¾
60
¾
dB
AVO
Open Loop Gain
5V
100Hz;
-3V<VIN<+3V
¾
60
¾
dB
fT
Gain Bandwidth
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
¾
VPP
DTMF Receiver
- Steering Control (fSYS= 3.5795MHz)
tDP
Tone Present Detection Time
5V
¾
511
14
ms
tDA
Tone Absent Detection Time
5V
¾¾
4
8.5
ms
tACC
Acceptable Tone Duration
5V
¾¾
¾
42
ms
tREJ
Rejected Tone Duration
5V
¾
20
¾¾
ms
tIA
Acceptable Inter-Digit Pause
5V
¾¾
¾
42
ms
tIR
Rejected Inter-Digit Pause
5V
¾
20
¾¾
ms
CPT Detector 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
CPTEN=1
¾¾
1
mA
GDV
Detection Level
5V
fIN=305~640Hz
-36
¾
0
dBm
2.5V
CPTENV=1
-42
¾-8
dBm
GRL
Rejection Level
¾
All frequency, CPTENV=0
¾¾
-50
dBm
fRL
Rejection Out-band
Frequency
¾
V
£0 dBm, CPTENV=0
¾¾
200
Hz
fRH
800
¾¾
Hz
tQI
Detection Pause Time
¾
VSIN
£-50dBm, CPTENV=0
40
¾¾
ms
tDD
Detection Signal Time
¾
In-band signal input,
CPTENV=1
40
¾¾
ms
tB
Rejection Pause Time
¾
VSIN
£-50dBm, CPTENV=1
¾¾
20
ms
HT95R45
Rev. 1.00
8
March 12, 2010



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