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参数资料
| 型号： | ISL59444 |
| 厂商： | Intersil Corporation |
| 英文描述： | 1GHz, 4 x 1 Multiplexing Amplifier with Synchronous Controls |
| 中文描述： | 1GHz的，4 × 1复用放大器同步控制 |
| 文件页数： | 9/11页 |
| 文件大小： | 579K |
| 代理商： | ISL59444 |
9
FN7451.1
September 21, 2005
Application Information
General
The ISL59444 is a 4:1 mux that is ideal as a matrix element
in high performance switchers and routers. The ISL59444 is
optimized to drive a 2pF in parallel with a 500
load. The
capacitance can be split between the PCB capacitance an
and external load capacitance. Their low input capacitance
and high input resistance provide excellent 50
or 75
terminations.
Capacitance at the Output
The output amplifier is optimized for capacitance to ground
(C
L
) directly on the output pin. Increased capacitance
causes higher peaking with an increase in bandwidth. The
optimum range for most applications is ~1.0pF to ~6pF. The
optimum value can be achieved through a combination of
PC board trace capacitance (C
T
) and an external capacitor
(C
OUT)
. A good method to maintain control over the output
pin capacitance is to minimize the trace length (C
T
) to the
next component, and include a discrete surface mount
capacitor (C
OUT
) directly at the output pin.
For large signal applications where overshoot is important
the circuit in Figure 22B should be used. The series resistor
(R
S
) and capacitor (C
L
) form a low pass network that limits
system bandwidth and reduces overshoot. The component
values shown result in a typical pulse response shown in
Figure 18.
Ground Connections
For the best isolation and crosstalk rejection, the GND pin
and NIC pins must connect to the GND plane. The NIC pins
are placed on both sides of the input pins. These pins are
not internally connected to the die. It is recommended this
pin be tied to ground to minimize crosstalk.
Control Signals
S0, S1, HIZ - These pins are, TTL/CMOS compatible control
inputs. The S0, S1 pins select which one of the inputs
connect to the output. The HIZ pin is used to three-state the
output amplifiers. For control signal rise and fall times less
than 10ns the use of termination resistors close to the part
will minimize transients coupled to the output.
HIZ State
An internal pull-down resistor connected to the HIZ pin
ensures the device will be active with no connection to the
HIZ pin. The HIZ state is established within approximately
30ns by placing a logic high (>2V) on the HIZ pin. If the HIZ
state is selected, the output is a high impedance 1.4M
. Use
this state to control the logic when more than one mux
shares a common output.
In the HIZ state the output is three-stated, and maintains its
high Z even in the presence of high slew rates. The supply
current during this state is basically the same as the active
state.
Application Circuits
FIGURE 22A. SMALL SIGNAL 200mV
P-P
APPLICATION CIRCUIT
FIGURE 22B. LARGE SIGNAL 1V
P-P
APPLICATION CIRCUIT
V
IN
50
-
+
*C
L
: TOTAL LOAD CAPACITANCE
C
T
: TRACE CAPACITANCE
C
OUT
: OUTPUT CAPACITANCE
C
OUT
0pF
R
L
= 500
V
OUT
*C
L
= C
T
+ C
OUT
C
T
1.6pF
V
IN
50
R
L
= 500
-
+
V
OUT
1.6pF
22pF
25
C
T
C
OUT
C
L
= C
T
+ C
OUT
R
S
ISL59444
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL59444IB | 功能描述:IC CROSSPOINT SW 1GHZ 4X1 16SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL59444IB-T13 | 功能描述:IC CROSSPOINT SW 1GHZ 4X1 16SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL59444IB-T7 | 功能描述:IC CROSSPOINT SW 1GHZ 4X1 16SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL59444IBZ | 功能描述:IC CROSSPOINT SW 1GHZ 4X1 16SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL59444IBZ-T13 | 功能描述:IC AMP MULTIPLEX 1GHZ 16SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
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