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参数资料
| 型号： | ISL54208IRZ |
| 厂商： | INTERSIL CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability |
| 中文描述： | DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10 |
| 封装： | 3 X 3 MM, ROHS COMPLIANT, PLASTIC, MO-229WEED-3, TDFN-10 |
| 文件页数： | 11/15页 |
| 文件大小： | 442K |
| 代理商： | ISL54208IRZ |
11
FN6410.0
December 18, 2006
EXTERNAL SERIES RESISTOR AT IN LOGIC CONTROL
PIN
The ISL54208 contains a clamp circuit between IN and VDD.
Whenever the IN voltage is greater than the V
DD
voltage by
more than 2.55V, current will flow through this clamp circuitry
into the V
DD
power supply bus.
During normal USB operation, V
DD
is in the range of 2.7V to
3.6V and IN (V
BUS
voltage from computer or USB hub) is in
the range of 4.4V to 5.25V, the clamp circuit is not active and
no current will flow through the clamp into the V
DD
supply.
In a USB application, the situation can exist where the V
BUS
voltage from the computer could be applied at the IN pin
before the V
DD
voltage is up to its normal operating voltage
range and current will flow through the clamp into the V
DD
power supply bus. This current could be quite high when
V
DD
is OFF or at 0V and could potentially damage other
components connected in the circuit. In the application
circuit, a 22k
Ω
resistor has been put in series with the IN pin
to limit the current to a safe level during this situation.
It is recommended that a current limiting resistor in the range
of 10k
Ω
to 50k
Ω
be connected in series with the IN pin. It will
have minimal impact on the logic level at the IN pin during
normal USB operation and protect the circuit during the time
V
BUS
is present before V
DD
is up to its normal operating
voltage.
Note: No external resistor is required in applications where
IN pin voltage will not exceed V
DD
by more than 2.55V.
Typical Performance Curves
T
A
= +25°C, Unless Otherwise Specified
0.11
R
LOAD
= 32
Ω
V
LOAD
= 0.707V
RMS
FIGURE 10. THD+N vs SUPPLY VOLTAGE vs FREQUENCY
FIGURE 11. THD+N vs SIGNAL LEVELS vs FREQUENCY
FIGURE 12. THD+N vs OUTPUT VOLTAGE
FIGURE 13. THD+N vs OUTPUT POWER
T
FREQUENCY (Hz)
20
200
2K
20K
0.04
0.05
0.06
0.07
0.08
0.09
0.1
V
DD
= 2.6V
V
DD
= 2.7V
V
DD
= 3.6V
V
DD
= 3V
T
FREQUENCY (Hz)
20
200
2K
20K
R
LOAD
= 32
Ω
V
DD
= 3V
0
0.1
0.2
0.3
0.4
2V
P-P
1V
P-P
3V
P-P
2.5V
P-P
T
OUTPUT VOLTAGE (V
P-P
)
0
0.5
1
1.5
2
2.5
3
3.5
0
0.1
0.2
0.3
0.4
0.5
R
LOAD
= 32
Ω
FREQ
= 1kHz
V
DD
= 3V
T
OUTPUT POWER (mW)
0
10
20
30
40
50
0
0.1
0.2
0.3
0.4
0.5
R
LOAD
= 32
Ω
FREQ
= 1kHz
V
DD
= 3V
ISL54208
相关PDF资料 |
PDF描述 |
|---|---|
| ISL54208IRUZ-T | Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability |
| ISL54209 | MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
| ISL54209IRTZ | MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
| ISL54209IRTZ-T | MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
| ISL54209IRUZ-T | MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54208IRZ-T | 功能描述:IC SWITCH USB/CVBS/AUDIO 10-TDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
| ISL54209 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
| ISL54209EVAL1Z | 功能描述:EVALUATION BOARD FOR ISL54209 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| ISL54209IRTZ | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
| ISL54209IRTZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
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