参数资料
| 型号： | PI3USB2117ZLEX |
| 厂商： | Pericom |
| 文件页数： | 1/6页 |
| 文件大小： | 0K |
| 描述： | IC USB SWITCH SPST 10TQFN |
| 标准包装： | 3,500 |
| 功能： | USB 开关 |
| 电路： | 2 x SPST |
| 导通状态电阻： | 6.5 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 4.2 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFQFN |
| 供应商设备封装： | 10-TQFN（1.3x1.6） |
| 包装： | 带卷 (TR) |
1
PS8920A
10/26/07
Notes:
1.
x = 0, 1
Features
USB 2.0 compliant
RON is 5.5Ω typical
Low bit-to-bit skew
Low Crosstalk: –40dB @ 500 Mbps
I/O pins have over voltage protection and can tolerate a short
to Vbus
Near-Zero propagation delay: 250ps
Switching speed: 9ns
Channel On Capacitance: 7pF
VDD Operating Range: 2.7V to 4.2V ±10%
Data pin I/O ESD: 12kV HBM protection per the JESD22-
A114D specication.
-3dB Bandwidth: 1300 MHz (Typ)
Packaging (Pb-free & Green): 10-contact TQFN (ZL10)
Application
Routes signals for USB 2.0
Hand held devices
Description
The PI3USB2117 is a single differential channel USB 2.0 Switch.
Industry leading advantages include a propagation delay of less than
250ps, resulting from its low channel resistance and I/O capacitance.
The switch is bidirectional and offers little or no attenuation of the
high-speed signals at the outputs. It is designed for low bit-to-bit
skew, high channel-to-channel noise isolation and is compatible
with various standards, such as High Speed USB 2.0 (480 Mb/s).
In addition to isolating D+/D- pins from a USB connetor, Pericom's
PI3USB2117 solution provides Electrostatic Discharge (ESD)
protection, up to 12kV per the JESD22-A114D specication.
PI3USB2117 also offers overvoltage protection, per the USB 2.0
specication. With the chip powered on or off, all I/O pins can
withstand a direct short to the Vbus pin on the USB connector. In
order to enable the overvoltage protection feature, the user must
add a 100ohm resistor between the power rail and Vdd pin on the
chip, pin 9.
Block Diagram
Pin Description
PI3USB2117
Wide Bandwidth, 2-Channel, SPST USB 2.0
Switch w/ ESD and Overvoltage protection
Truth Table
OE
xS
Function
H
X
I/O's = Hi-Z
LL
xA = xB
L
H
Disconnect
1A
1B
2A
2B
1S
2S
OE
CTRL
1
2
7
6
3
4
5
10
9
8
2B
NC
OE
1B
2A
GND
2S
1S
V
DD
1A
07-0238
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