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参数资料
| 型号： | LT6300IGN#TR |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC XDSL LINE DRIVER 16-SSOP |
| 标准包装： | 2,500 |
| 类型： | 线路驱动器，发射器 |
| 驱动器/接收器数： | 2/0 |
| 规程： | xDSL |
| 电源电压： | 5 V ~ 12 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | LT6300IGNTR |
12
LT6300
APPLICATIO S I FOR ATIO
WU
UU
Another compensation scheme for noninverting circuits is
shown in Figure 10. The circuit is unity gain at low fre-
quency and a gain of 1 + RF/RG at high frequency. The DC
output offset is reduced by a factor of ten. The techniques
of Figures 9 and 10 can be combined as shown in Fig-
ure 11. The gain is unity at low frequencies, 1 + RF/RG at
mid-band and for stability, a gain of 10 or greater at high
frequencies.
In differential driver applications, as shown on the first
page of this data sheet, it is recommended that the gain
setting resistor be comprised of two equal value resistors
connected to a good AC ground at high frequencies. This
ensures that the feedback factor of each amplifier remains
less than 0.1 at any frequency. The midpoint of the
resistors can be directly connected to ground, with the
resulting DC gain to the VOS of the amplifiers, or just
bypassed to ground with a 1000pF or larger capacitor.
Line Driving Back-Termination
The standard method of cable or line back-termination is
shown in Figure 12. The cable/line is terminated in its
characteristic impedance (50
, 75, 100, 135, etc.).
A back-termination resistor also equal to the chararacteristic
impedance should be used for maximum pulse fidelity of
outgoing signals, and to terminate the line for incoming
signals in a full-duplex application. There are three main
drawbacks to this approach. First, the power dissipated in
the load and back-termination resistors is equal so half of
the power delivered by the amplifier is wasted in the
termination resistor. Second, the signal is halved so the
gain of the amplifer must be doubled to have the same
overall gain to the load. The increase in gain increases
noise and decreases bandwidth (which can also increase
distortion). Third, the output swing of the amplifier is
doubled which can limit the power it can deliver to the load
for a given power supply voltage.
An alternate method of back-termination is shown in
Figure 13. Positive feedback increases the effective back-
termination resistance so RBT can be reduced by a factor
+
–
6300 F10
RF
RG
Vi
VO
CC
< 5MHz
1
2
πRGCC
RG ≤ RF/9
= 1 (LOW FREQUENCIES)
(HIGH FREQUENCIES)
VO
VI
= 1 +
RF
RG
Figure 10. Alternate Noninverting Compensation
RC
VO
VI
CC
+
–
6300 F11
RF
RG
CBIG
RF
RG
= 1 AT LOW FREQUENCIES
= 1 +
AT MEDIUM FREQUENCIES
RF
(RC || RG)
= 1 +
AT HIGH FREQUENCIES
VO
VI
Figure 11. Combination Compensation
+
–
6300 F12
RF
RBT
CABLE OR LINE WITH
CHARACTERISTIC IMPEDANCE RL
RG
VO
VI
RL
(1 + RF/RG)
=
VO
VI
1
2
RBT = RL
Figure 12. Standard Cable/Line Back Termination
+
–
6300 F13
RF
RBT
RP2
RP1
RG
VI
VA
VP
VO
RL
RF
RG
1 +
RL
n
=
VO
VI
= 1 –
–
1
n
FOR RBT =
()
RF
RG
1 +
()
RP1
RP1 + RP2
RP1
RP2 + RP1
RP2/(RP2 + RP1)
()
1 + 1/n
Figure 13. Back Termination Using Postive Feedback
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相关代理商/技术参数 |
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| LT6301 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 500mA, Differential xDSL Line Driver in 28-Lead TSSOP Package |
| LT6301CFE | 功能描述:IC XDSL LINE DRIVER DUAL 28TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| LT6301CFE#PBF | 功能描述:IC XDSL LINE DRIVER DUAL 28TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| LT6301CFE#TR | 功能描述:IC XDSL LINE DRIVER DUAL 28TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| LT6301CFE#TRPBF | 功能描述:IC XDSL LINE DRIVER DUAL 28TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
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