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参数资料
| 型号： | ISL54207IRZ |
| 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： | 10/14页 |
| 文件大小： | 462K |
| 代理商： | ISL54207IRZ |
10
FN6403.0
December 5, 2006
USB Mode
If the VBUS pin = Logic “1” and CTRL pin = Logic “0” or
Logic “1,” the part will go into USB mode. In USB mode, the
NO1 and NO2 5
Ω
switches are ON and the NC1 and NC2
3
Ω
audio switches are OFF (high impedance). When a USB
cable from a computer or USB hub is connected at the
common connector, the voltage at the VBUS pin will be
driven to be in the range of 4.4V to 5.25V. The ISL54207 part
will go into the USB mode. In USB mode, the computer or
USB hub transceiver and the media player USB transceiver
are connected and digital data will be able to be transmitted
back and forth.
When the USB cable is disconnected, the ISL54207
automatically turns the NO1 and NO2 switches OFF.
Low Power Mode
If the VBUS pin = Logic “0” and CTRL pin = Logic “0,” the
part will be in the Low Power mode. In the Low Power mode,
the NCx switches and the NOx switches are OFF (high
impedance). In this state, the device draws typically 1nA of
current.
EXTERNAL V
BUS
SERIES RESISTOR
The ISL54207 contains a clamp circuit between VBUS and
VDD. Whenever the V
BUS
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 V
BUS
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 VBUS 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 VBUS
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 VBUS pin. It
will have minimal impact on the logic level at the VBUS 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
V
BUS
will not exceed V
DD
by more than 2.55V.
POWER
The power supply connected at VDD (pin 1) provides power
to the ISL54207 part. Its voltage should be kept in the range
of 2.7V to 3.6V when used in a USB/Audio/Video application
to ensure you get proper switching when the V
BUS
voltage is
at its lower limit of 4.4V.
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
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
ISL54207
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54207IRZ-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 |
| ISL54208 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability |
| ISL54208EVAL1Z | 功能描述:EVALUATION BOARD FOR ISL54208 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 |
| ISL54208IRUZ-T | 功能描述:IC SWITCH USB/CVBS/AUDIO 10-TQFN 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 |
| ISL54208IRZ | 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 |
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