- 您现在的位置：买卖IC网 > PDF目录68459 > W671340P (WINBOND ELECTRONICS CORP) TELECOM-SLIC, PQCC28 PDF资料下载
参数资料
| 型号： | W671340P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 模拟传输电路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 10/48页 |
| 文件大小： | 1344K |
| 代理商： | W671340P |
第1页第2页第3页第4页第5页第6页第7页第8页第9页当前第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
W671300 SERIES
RP
= A protection resistor (typical 49.9).
RS
= An external resistor/network for matching the line impedance.
VTR = The tip to ring voltage at the output pins of the SLIC.
V2W = The tip to ring voltage including the voltage across the protection resistors.
ZL
= The line impedance.
ZO
= The source impedance of the device.
7.1.7.3. 4-wire to 2-wire Gain
4-wire to 2-wire gain across the Ringing SLIC is equal to the V2W divided by the input voltage VIN, (see
Figure [4] above). The receive gain is calculated using equation [32] above.
Equation [33] expresses the receive gain (VIN to V2W) in terms of network impedances. From equation
[21], the value of RS was set to match the line impedance (ZL) to the device plus the protection
resistors (Z0 + 2RP). This results in a 4-wire to 2-wire gain equal to RS/RIN, as shown below.
G4-2 =
V2W
VIN
------------ = 2
RS
RIN
----------
ZL
ZL ZO
+
+ 2RP
----------------------------------------
2
ZL
ZL ZL
+
--------------------
RS
RIN
----------
=
(EQ. 33)
7.1.7.4. 2-wire to 2-wire Gain
The 2-wire to 4-wire gain is equal to VTX/EG with VIN = 0, (reference Figure [4] above).
E
– G ZLIM 2RPIM VTR
–
+
0
=
Loop
(EQ. 34)
From equation [30] with VIN = 0
VTR
Z
OV2W
ZL
--------------------
=
(EQ. 35)
Substituting equation [35] into Equation [34] and simplify.
EG
V2W
ZL 2RP ZO
+
ZL
---------------------------------------
–
=
(EQ. 36)
Substituting equation [19] into Equation [17] (VIN =0) and defining IM = -V2W/ZL results in the following
equation.
VTX
V2W
2
------------
ZL 2RP
–
ZL
------------------------
=
(EQ. 37)
Combining the two preceding equations results in the following.
- 18 -
相关PDF资料 |
PDF描述 |
|---|---|
| W671352P | TELECOM-SLIC, PQCC28 |
| W671352Y | TELECOM-SLIC, QCC32 |
| W671371P | TELECOM-SLIC, PQCC28 |
| W671371Y | TELECOM-SLIC, QCC32 |
| W671330P | TELECOM-SLIC, PQCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| W674 | 功能描述:灯 S-8 INCND S.C. BAY RoHS:否 制造商:Chicago Miniature 灯类型:Incandescent 灯座类型:Wire Terminal 灯大小:T-1 3/4 颜色: 电压:14 V 工作电流: MSCP:0.3 MSCP 寿命:40000 hr 封装:Bulk |
| W67-A1Q1-20 | 制造商:MA-COM 制造商全称:M/A-COM Technology Solutions, Inc. 功能描述:Magnetic Hydraulic Circuit Breakers |
| W67-A1Q3-20 | 制造商:MA-COM 制造商全称:M/A-COM Technology Solutions, Inc. 功能描述:Magnetic Hydraulic Circuit Breakers |
| W67-A1Q5-20 | 制造商:MA-COM 制造商全称:M/A-COM Technology Solutions, Inc. 功能描述:Magnetic Hydraulic Circuit Breakers |
| W67-A1S1-20 | 制造商:MA-COM 制造商全称:M/A-COM Technology Solutions, Inc. 功能描述:Magnetic Hydraulic Circuit Breakers |
发布紧急采购，3分钟左右您将得到回复。