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參數(shù)資料
| 型號(hào)： | SY56023RMG TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CROSSPOINT SWITCH 2X2 16MLF |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | Precision Edge® |
| 功能： | 交叉點(diǎn)開關(guān) |
| 電路： | 1 x 2:2 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2.375 V ~ 2.625 V，1.14 V ~ 1.9 V |
| 電流 - 電源： | 80mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-VFQFN 裸露焊盤，16-MLF? |
| 供應(yīng)商設(shè)備封裝： | 16-MLF?（3x3） |
| 包裝： | 帶卷 (TR) |
2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSUSB31
—
Low-Power
,Si
ngle-Port,
High-S
p
eed
US
B
2.0
(480Mbp
s)
Switch
FSUSB31 Rev. 1.1.0
10
Application Guidance: Meeting USB 2.0 Vbus Short Requirements
In section 7.1.1 of the USB 2.0 specification, it notes that
USB devices must be able to withstand a Vbus short to
D+ or D- when the USB devices is either powered off or
powered on. The FSUSB31 can be successfully config-
ured to meet both these requirements.
Power-Off Protection
For a Vbus short circuit, the switch is expected to with-
stand such a condition for at least 24 hours. The
FSUSB31 has specially designed circuitry which pre-
vents unintended signal bleed through as well as guar-
anteed system reliability during a power-down, over-
voltage condition. The protection has been added to the
common pins (D+, D-).
Power-On Protection
The USB 2.0 specification also notes that the USB
device should be capable of withstanding a Vbus short
during transmission of data. Fairchild recommends add-
ing a 100
Ω series resister between the switch VCC pin
and supply rail to protect against this case. This modifi-
cation works by limiting current flow back into the VCC
rail during the over-voltage event so current remains
within the safe operating range. In this application, the
switch passes the full 5.25V input signal through to the
selected output, while maintaining specified off isolation
on the un-selected pins.
D+ = 5.25V
VCC= 3.6 V
100 Ohms
FSUSB31
D- = 5.25V
HSD+
HSD-
Figure 21. A 100
Ω resistor in series with the VCC supply allows the FSUSB31 to withstand a Vbus
short when powered up
For more information, see Applications Note AN-6022 — Using the FSUSB30/FSUSB31 to Comply with
USB 2.0 Fault Condition Requirements at www.fairchildsemi.com.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY56028XR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V/2.5V CML 4:1 MUX with 1:2 FANOUT 6.4Gbps with EQUALIZATION |
| SY56028XR_1009 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V/2.5V CML 4:1 MUX with 1:2 FANOUT 6.4Gbps with EQUALIZATION |
| SY56028XRMG | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 1.2/1.8/2.5V LV CML 4:1 MUX w/ Equalization RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SY56028XRMG TR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 1.2/1.8/2.5V LV CML 4:1 MUX w/ Equalization RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SY56028XRMGTR | 制造商:Micrel 功能描述:Multiplexer 4:1,differential input |
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