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参数资料
| 型号： | EL1505C |
| 英文描述： | Differential Line Driver(差分线驱动器) |
| 中文描述： | 差分线路驱动器（差分线驱动器） |
| 文件页数： | 12/13页 |
| 文件大小： | 209K |
| 代理商： | EL1505C |
8
EL1504C, EL1505C
Differential Line Driver
EL1504C,
E
L
1505C
Applications Information
The EL1504/5C consists of two power line drivers that
can be connected for full duplex differential line trans-
mission. The amplifiers are designed to be used with
signals up to 4 MHz and produce low distortion levels.
Here is a typical interface circuit:
The amplifiers are wired one in positive gain and the
other in negative gain configuration to generate a differ-
ential output for a single-ended input. The drivers will
exhibit very similar frequency responses for gains of
three or greater and thus generate very small common-
mode outputs over frequency, but for low gains the two
drivers RF’s need to be adjusted to give similar fre-
quency responses. The positive-gain driver will
generally exhibit more bandwidth and peaking than the
negative-gain driver. The Typical Performance Curves
section of this data sheet has a plot of driver responses
matched at gains of +1 and -1 using feedback resistors of
910
and 750, respectively.
If a differential signal is available to the drive amplifiers,
they may be wired so:
Each amplifier has identical positive gain connections,
and optimum common-mode rejection occurs. Further,
DC input errors are duplicated and create common-
mode rather than differential line errors.
Input Connections
The drivers are somewhat sensitive to source imped-
ance. In particular, they do not like being driven by
inductive sources. More than 100 nH of source imped-
ance can cause ringing or even oscillations. This
inductance is equivalent to about 4” of unshielded wir-
ing, or 6” of unterminated transmission line. Normal
high-frequency construction obviates any such problem.
Resistive sources greater than 2 k
will cause the driver
to exhibit increased harmonic distortion. Most amplifier
output stages are much lower in impedance and give no
problem.
Power Supplies & Dissipation
The EL1504/5C works well over the ±5V to ±15V sup-
ply range. Frequency response varies only slightly, and
output drive capability is constant. The major supply
voltage issue is power dissipation. The internal dissipa-
tion PD for an EL1504/5C running on supply voltages of
±VS and delivering a DC output voltage VO into a load
of RL is:
-
+
Driver Input
-
+
ZLINE
ROUT
RF
RG
ROUT
RF
RG
RIN
Figure 1. Typical Line Interface Connection
Figure 2. Drivers Wired for Differential Input
-
+
-
+
ROUT
RF
2RG
ROUT
RF
RG
ZLINE
Differential Input
P
D
2V
S
I
S
×
2V
S
V
O
–
()
×
+
×
V
O RL
×
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EL1505CM | 制造商:ELANTEC 制造商全称:ELANTEC 功能描述:Differential Line Driver |
| EL1506 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Medium Power Differential Line Driver |
| EL1506_05 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Medium Power Differential Line Driver |
| EL1506CM | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Medium Power Differential Line Driver |
| EL1506CM-T13 | 功能描述:IC LINE DRVR DUAL ADSL 28-HTSSOP 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:1,000 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-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
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