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參數(shù)資料
| 型號(hào)： | MH88632BT |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office Interface Circuit Preliminary Information |
| 中文描述： | 中央辦公室接口電路的初步信息 |
| 文件頁(yè)數(shù)： | 10/17頁(yè) |
| 文件大?。?/td> | 95K |
| 代理商： | MH88632BT |
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MH88632B
Preliminary Information
2-248
=
Electrical Characteristics are over recommended operating conditions unless otherwise stated.
Typical figures are at 25
°
C with nominal ±5V supplies and are for design aid only.
Loop Electrical Characteristics
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
2
4
5
6
Ringing Voltage
Ringing Frequency
Operating Loop Current
Off-Hook DC Resistance
Leakage Current
(Tip-Ring to AGND)
FL Threshold
Tip-Ring Voltage Detect (On-hook)
Tip-Ring Current Detect (Off-hook)
RL Threshold
Tip-Ring Voltage Detect (On-hook)
Tip-Ring Current Detect (Off-hook)
TG and RG Detect Threshold
V
R
20
17
15
190
90
20
130
68
90
290
7
Vrms
Hz
mA
mArms
275
@1000VAC
7
12
6
21
12
V
mA
LRC = 0V
LRC = 5V
8
-12
-6
-21
-12
-14
V
mA
V
LRC = 0V
LRC = 5V
9
-12
AC Electrical Characteristics
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
2-wire Input Impedance
Note 1
Zin
600
900
Ext.
2
Return Loss at 2-Wire
(Zin = 600
)
RL
20
26
20
22
26
24
40
48
46
dB
dB
dB
dB
dB
dB
Test Circuit Fig. 6
200-500 Hz
500-1000 Hz
1000-3400 Hz
200-500 Hz
500-1000 Hz
1000-3400 Hz
Test Circuit Fig. 8
200 Hz
1000 Hz
2000 Hz
3000 Hz
4000 Hz
Test Circuit Fig. 7
200-1000 Hz
1000 -4000 Hz
200-3400 Hz
500-2500 Hz
200-3400 Hz
500 -2500 Hz
200-3400 Hz
500-2500 Hz
3
Return Loss at 2-Wire
(Zin = 900
)
RL
4
Longitudinal to Metallic Balance
Note 2
58
58
55
53
51
64
63
61
57
54
dB
dB
dB
dB
dB
5
Metallic to Longitudinal Balance
Note 2
60
40
18
21
18
21
18
21
62
62
25
33
dB
dB
dB
dB
dB
dB
dB
dB
k
6
Transhybrid Loss
(Zin = Net = 600
) Note 2 & 3
Transhybrid Loss
(Zin = Net = 900
) Note 2 & 3
Transhybrid Loss
(Zin =600
, Net = AT&T) Note 2 & 3
Input Impedance At RX
Output Impedance at TX
Transmit Gain, (2-Wire/TX):
Default Gain(0dB)
Programmable Range
THL
7
THL
8
THL
30
10
9
10
11
5
-0.2
-12
0
0.2
6
dB
dB
Test Circuit Fig. 5
Input 0.5V
1000Hz
1000Hz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88634-2 | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶(hù)線之間提供一個(gè)模擬和信號(hào)連接）) |
| MH88634BV-2 | SWITCH PB DPDT MINI RTANG ALTACT |
| MH88634B | Central Office Interface Circuit Advance Information |
| MH88634BT-2 | Central Office Interface Circuit Advance Information |
| MH88634BV-4 | Central Office Interface Circuit Advance Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88633AV-PE4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MH88634 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634-2 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634B | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
| MH88634BT-2 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
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