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參數(shù)資料
| 型號(hào)： | 75T2090 |
| 廠商： | TDK Corporation |
| 英文描述： | DTMF Transceivers |
| 中文描述： | 雙音多頻收發(fā)器 |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大小： | 75K |
| 代理商： | 75T2090 |
75T2089/2090/2091
DTMF Transceivers
5
DIGITAL AND DC REQUIREMENTS
The following electrical specifications apply to the digital input and output signals over the recommended
operating range unless otherwise noted. The specifications do not apply to the following pins: LIN, DIN, XIN,
XOUT, and DTMF OUT. Positive current is defined as entering the circuit. Vn = 0 unless otherwise stated.
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
Supply Current*
15
30
mA
Power Dissipation
Input Voltage High
225
mW
V
0.7Vp
Input Voltage Low
0.3Vp
V
Input Current High
Input Current Low
10
μ
A
-10
μ
A
V
Output Voltage High
Ioh = -0.2mA
Vp-0.5
Output Voltage Low
IoI = +0.4mA
Vn+0.5
V
* with DTMF output disabled
DTMF RECEIVER: Electrical Characteristics
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
Frequency Detect Bandwidth
=
(1.5+2Hz)
=
2.3
=
3.5
%Fo
Amplitude for Detection
Twist Tolerance
Each Tone
-32
-10
-2
+10
dBm/tone
dB
60Hz Tolerance
0.8
Vrms
Dial Tone Tolerance
Speech Immunity
Precise Dial Tone
MITEL Tape #CM7290
0
dB*
hits
2
Noise Tolerance
MITEL Tape #CM7290
-12
dB*
Input Impedance
100
k
* Referenced to lowest amplitude tone
DTMF RECEIVER: Timing Characteristics
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
TON
TON
Tone Time for Detect
Tone Time for No Detect
40
ms
ms
20
TOFF
Pause Time for Redetection
40
ms
TOFF
TD1
Pause Time for Bridging
Detect Time
20
46
ms
ms
25
TR1
Release Time
35
50
ms
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 75T2090-IP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DTMF TRANSCEIVERS |
| 75T2091 | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:DTMF Transceivers |
| 75T2091-IH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DTMF TRANSCEIVERS |
| 75T2091-IP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DTMF TRANSCEIVERS |
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