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HT95R34 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc

Part # HT95R34
Description  I/O Type Phone 8-bit MCU with DTMF Receiver
PDF  59 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT95R34 Datasheet(HTML) 6 Page - Holtek Semiconductor Inc

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
DTMF Generator (Operating Temperature:
-20°Cto85°C
fDTMFO
Single Tone Output
Frequency
2.5V
Microcontroller normal mode;
DTMF generator single tone
test mode
690
¾
704
Hz
762
¾
778
843
¾
861
932
¾
950
1197
¾
1221
1323
¾
1349
1462
¾
1492
1617
¾
1649
VTAC
DTMF Output AC Level
¾ Row group, RL=5kW
120
155
180
mVrms
RL
DTMF Output Load
¾ T.H.D. £-23dB
5
¾¾
k
W
ACR
Column Pre-emphasis
¾ Row group= 0dB
1
2
3
dB
THD
Tone Signal Distortion
¾ RL=5kW¾
-30
-23
dB
DTMF Receiver
- Signal (fSYS= 3.5795MHz)
Input Signal Level
3V
¾-36
¾-6
dBm
5V
¾-29
¾
1
Twisted Accept Limit
(Positive)
5V
¾¾
10
¾
dB
Twisted Accept Limit
(Negative)
5V
¾¾
10
¾
dB
Dial Tone Tolerance
5V
¾¾
18
¾
dB
Noise Tolerance
5V
¾¾
-12
¾
dB
Third Tone Tolerance
5V
¾¾
-16
¾
dB
Frequency Deviation
Acceptance
5V
¾¾
¾
±1.5
%
Frequency Deviation
Rejection
5V
¾±3.5
¾¾
%
tPU
Power-up Time
5V
¾¾
30
¾
ms
HT95R34
Rev. 1.10
6
February 18, 2009



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