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參數(shù)資料
| 型號： | MH88435-P |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Data Access Arrangement(數(shù)據(jù)存取陣列（在音頻或數(shù)據(jù)傳送設(shè)備和電話線之間提供一個完全接口）) |
| 中文描述： | 數(shù)據(jù)訪問安排（數(shù)據(jù)存取陣列（在音頻或數(shù)據(jù)傳送設(shè)備和電話線之間提供一個完全接口）） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 71K |
| 代理商： | MH88435-P |
Preliminary Information
MH88435-P
2-45
Figure 5 - Typical Application Circuit
TIP
NB2
RING
VX
VR+
RV
LC
AGND
8
V
TIP
RING
C2
+5V
9
6
16
5
3
27
28
Analog
Input
Analog
Output
Ringing Voltage Detect Output
Loop Control Input
MH88435
+
C3
C1
Notes:
1) R1 & C1: Dummy Ringer, country specific
typically 0.39
μ
F, 250V & 3k
ZA
7
Zext
2) R2: DC Mask Resistor typical 360k
3) R3 & R4: Transmit Gain Resistors
≥
2k2
R1
25
24
V
V
VR
-
4
Analog
Input
R2
LCD
15
Loop Current Detect Output
NB1
5) ZB: Network Balance Impedance
6) C2, C6 = 10
μ
F 6V
7) C7 & C8 = 39nF for 12kHz filter and 22nF for
16KHz filter. These can be left off if meter pulse
filtering not required.
8) Zext: External Impedance
9) D1 Zener Diode 6V2
10) L1, L2 = 4m7H 80mA. These can be left off if
meter pulse filtering not required.
11) C3, C4 & C5 = 1
μ
F coupling capacitors
12) R7 = 620k
(30V RMS ringing sensitivity)
13) D2 = Teccor P3100SB
R3
R5
R6
R4
4) R5 = R6: Receive Gain Resistors typically 100k
C6 +
10
VBIAS
D1
C7
L1
L2
C8
13 11
R
L
ZB
1
2
C4
C5
D2
R7
= Ground (Earth)
22 21
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88435 | Data Access Arrangement |
| MH88435AD-P | Data Access Arrangement Preliminary Information |
| MH88435-P | Data Access Arrangement Preliminary Information |
| MH88435AD-PI | Data Access Arrangement Preliminary Information |
| MH88435AS-P | Data Access Arrangement Preliminary Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88437 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AD-P | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AD-PI | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AS-P | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AS-PI | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
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