参数资料
| 型号： | THS6182DWEVM |
| 厂商： | Texas Instruments |
| 文件页数： | 17/26页 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR THS6182DW |
| 标准包装： | 1 |
| 主要目的： | 接口，线路驱动器，ADSL |
| 已用 IC / 零件： | THS6182DW |
| 已供物品： | 板 |
| 产品目录页面： | 904 (CN2011-ZH PDF) |
| 相关产品： | THS6182DWG4-ND - IC ADSL LINE DRVR LP 20-SOIC THS6182DG4-ND - IC ADSL LINE DRVR LP 16-SOIC THS6182RHFTG4-ND - IC ADSL LINE DRIVER LP 24-QFN THS6182RHFT-ND - IC ADSL LINE DRIVER LP 24-QFN THS6182RHFRG4-ND - IC ADSL LINE DRIVER LP 24-QFN THS6182DWRG4-ND - IC ADSL LINE DRIVER LP 20-SOIC THS6182DWR-ND - IC ADSL LINE DRIVER LP 20-SOIC THS6182DWPRG4-ND - IC ADSL LINE DRIVER LP 20-SOIC THS6182DWPR-ND - IC ADSL LINE DRIVER LP 20-SOIC THS6182DWPG4-ND - IC ADSL LINE DRIVER LP 20-SOIC 更多... |
| 其它名称： | 296-18856 |
Active Termination
3.2 Active Termination
Although this application is specifically for use as an ADSL line driver, the
principals shown can be applied to other applications.
Active termination is a technique that allows the designer to use a small value
resistor for the series resistance (R6 and, or R15). The circuit then utilizes pos-
itive feedback to make the impedance of this resistor appear much larger,
when looking from the line-side. This accomplishes two things:
- A very small resistance exists between the amplifier and the transformer.
This lowers the output voltage swing range required from the driver stage.
- Proper matching impedance appears when looking from the line to the
amplifier.
Figure 3?2 shows the basic circuit for differential positive feedback.
Figure 3?2. Differential Positive Feedback
+V
TP1
J2
Vin1
Z1
R9
18
8
+
U1A
THS6182
2
Vo1
R6 = Rs
0 W
0 W
R10
49.9 W
1
?
3
12.4 W
R2 = RF
1.5 k W
?V
C2
0.1 m F
R3 = Rp
2k W
C1
TP2
Vout+
1:n
V Line
Line =
R23 = 2 RG
750 W
R12 = Rp
2k W
R1
R11 = RF
TP4
Vout+
100 W
J4
Vin2
Z2
0 W
R18
0 W
20
13
?
+
19
U1B
THS6182
TP3
Vo2
1.5 k W
R15 = Rs
12.4 W
R19
49.9 W
THS6182DWEVM Applications
3-3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS6182DWG4 | 功能描述:缓冲器和线路驱动器 Low Pwr Dissipation Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| THS6182DWP | 功能描述:缓冲器和线路驱动器 Low Pwr Dissipation Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| THS6182DWPG4 | 功能描述:缓冲器和线路驱动器 Low Pwr Dissipation Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| THS6182DWPR | 功能描述:缓冲器和线路驱动器 Low Pwr Dissipation Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| THS6182DWPRG4 | 功能描述:缓冲器和线路驱动器 Low Pwr Dissipation Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
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