參數(shù)資料
型號(hào)： ISL54208IRZ-T
廠商： INTERSIL CORP
元件分類： 運(yùn)動(dòng)控制電子
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
封裝： 3 X 3 MM, ROHS COMPLIANT, PLASTIC, MO-229WEED-3, TDFN-10
文件頁(yè)數(shù)： 11/15頁(yè)
文件大?。?/td> 442K
代理商： ISL54208IRZ-T
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
相關(guān)PDF資料
PDF描述
ISL54208IRZ Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL54209 制造商:INTERSIL 制造商全稱: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 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板
ISL54209IRTZ 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件
ISL54209IRTZ-T 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件
ISL54209IRU1Z-T 功能描述:IC MP3/USB SWITCH SPDT DL 10TQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件
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