- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9628 > EL1508CL-T13 (Intersil)IC LINE DRIVER ADSL 24-QFN PDF資料下載
參數(shù)資料
| 型號： | EL1508CL-T13 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 8/18頁 |
| 文件大小： | 0K |
| 描述： | IC LINE DRIVER ADSL 24-QFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 驅(qū)動器 |
| 驅(qū)動器/接收器數(shù)： | 1/0 |
| 電源電壓： | 5 V ~ 12 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-QFN（5x4） |
| 包裝： | 帶卷 (TR) |
16
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN7014.5
March 26, 2007
current-limit mechanism. This allows safely driving rms
sinusoidal currents of 2 x 100mA, or 200mA. This current is
more than that required to drive line impedances to large
output levels, but output short circuits cannot be tolerated.
The series output resistor will usually limit currents to safe
values in the event of line shorts. Driving lines with no series
resistor is a serious hazard.
The amplifiers are sensitive to capacitive loading. More than
25pF will cause peaking of the frequency response. The
same is true of badly terminated lines connected without a
series matching resistor.
Output AC Coupling
When in power-down mode, several volts of differential
voltage may appear across the line driver outputs. If DC
current path exists between the two outputs, large DC
supply rail through the outputs. To avoid DC current flow, the
most effective solution is to place DC blocking capacitors in
series at the outputs, as shown by the 0.22F capacitors in
Figure 44.
Power Supplies
The power supplies should be well bypassed close to the
EL1508. A 2.2F tantalum capacitor and a 0.1F ceramic
capacitor for each supply works well. Since the load currents
are differential, they should not travel through the board
copper and set up ground loops that can return to amplifier
inputs. Due to the class AB output stage design, these
currents have heavy harmonic content. If the ground
terminal of the positive and negative bypass capacitors are
connected to each other directly and then returned to circuit
ground, no such ground loops will occur. This scheme is
employed in the layout of the EL1508 demonstration board,
and documentation can be obtained from the factory.
Single Supply Operation
The EL1508 can also be powered from a single supply
voltage. When operating in this mode, the GND pins can still
be connected directly to GND. To calculate power
dissipation, the equations in the previous section should be
used, with VS equal to half the supply rail.
Feedback Resistor Value
The bandwidth and peaking of the amplifiers varies with
supply voltage somewhat and with gain settings. The
feedback resistor values can be adjusted to produce an
optimal frequency response. Here is a series of resistor
values that produce an optimal driver frequency response
(1dB peaking) for different supply voltages and gains:
TABLE 2. OPTIMUM DRIVER FEEDBACK RESISTOR FOR
VARIOUS GAINS AND SUPPLY VOLTAGES
SUPPLY
VOLTAGE
DRIVER VOLTAGE GAIN
2.5
5
10
±5V
3.5k
3.25k
3k
±12V
3.5k
3.25k
3k
EL1508
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS3126E24-61PY | CONN PLUG 61POS STRAIGHT W/PINS |
| EL1507CL-T7 | IC LINE DRIVER ADSL 16-QFN |
| EL1507CL-T13 | IC LINE DRIVER ADSL 16-QFN |
| EL1507CL | IC LINE DRIVER ADSL 16-QFN |
| EL1508CL | IC LINE DRIVER ADSL 24-QFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL1508CL-T7 | 功能描述:IC LINE DRIVER ADSL 24-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| EL1508CLZ | 功能描述:IC LINE DRIVER ADSL 24-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| EL1508CLZ-T13 | 功能描述:IC LINE DRIVER ADSL 24-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| EL1508CLZ-T7 | 功能描述:IC LINE DRIVER ADSL 24-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| EL1508CM | 功能描述:IC LINE DRIVER ADSL 20-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。