- 您现在的位置：买卖IC网 > PDF目录18830 > STF202-22T1G (ON Semiconductor)IC FILTER USB ESD PROTECT 6TSOP PDF资料下载
参数资料
| 型号： | STF202-22T1G |
| 厂商： | ON Semiconductor |
| 文件页数： | 4/6页 |
| 文件大小： | 0K |
| 描述： | IC FILTER USB ESD PROTECT 6TSOP |
| 标准包装： | 1 |
| 系列： | STF202-22 |
| 类型： | 低通 |
| 技术： | RC（Pi） |
| 通道数： | 2 |
| 电阻 - 通道 (Ohms)： | 22 |
| 值： | R = 22 欧姆，C = 68pF |
| ESD 保护： | 是 |
| 滤波器阶数： | 2nd |
| 应用： | USB |
| 封装/外壳： | SC-74，SOT-457 |
| 尺寸/尺寸： | 0.118" L x 0.059" W（3.00mm x 1.50mm） |
| 高度： | 0.043"（1.10mm） |
| 包装： | 标准包装 |
| 工作温度： | -55°C ~ 125°C |
| 产品目录页面： | 1132 (CN2011-ZH PDF) |
| 其它名称： | STF202-22T1GOSDKR |
STF202 ? 22T1G
As previously mentioned, there are two types of
5 V
configurations for the USB port which are upstream and
downstream. If your port connects to the host either in a
Peripheral
1
6
USB
Controller
direct way or through a hub, you are upstream (data flows
“up” to the host) and in the other hand, if you are the host or
your port provides access to the host then you are
downstream (data flows “down” from the host to the
D ?
D+
2
3
STF202
5
4
D ?
D+
device). In the case of the STF202 device, it provides
upstream termination. The Figure 7 represents the
termination for an upstream USB port.
V CC
Rpu
GND
Figure 8.
Low ? Speed Devices
The Pull up resistor (Rpu) is connected to the D ? Line. The
terminal 1 is connected to the Voltage Supply Line (V BUS )
while the terminal 6 is connected to ground. The input of the
C
C
R S
R S
D ? line is connected in the terminal 3 which outputs from the
terminal 4. Finally, the input of the D+ line is connected in
the terminal 2 which outputs from the terminal 5. The Figure
9 shows the connections of the STF202 device for
“Low ? Speed devices”.
5 V
Peripheral
USB
Figure 7.
1
6
Controller
The USB Line termination is reached through the series
resistors placed in the D+ and D ? lines. These resistors
insure the proper termination to maintain the integrity of the
D+
D ?
2 STF202
3
5
4
D+
D ?
signal. The Pull up Resistor of 1.5 k W on either the D+ or D ?
data lines is used to identify the equipment as either
full ? speed or low ? speed device.
Connection for Full ? Speed
and Low ? Speed Devices
As mentioned before, there are two kinds of port devices:
Full ? Speed devices ? operates in 12 Mb/s
Low ? Speed devices that work in 1.5 Mb/s
The STF202 device can be shaped to be used for either
Full ? Speed or Low ? Speed devices which is achieved as
described below:
Full ? Speed Devices
The Pull up resistor (Rpu) is connected to the D+ Line.
The terminal 1 is connected to the Voltage Supply Line
(V BUS ) while the terminal 6 is connected to ground. The
input of the D+ line is connected in the terminal 3 which
outputs from the terminal 4. Finally, the input of the D ? line
is connected in the terminal 2 which outputs from the
terminal 5. The Figure 8 shows the connections of the
STF202 device for “Full ? Speed devices”.
http://onsemi.com
4
Figure 9.
GND
相关PDF资料 |
PDF描述 |
|---|---|
| ASD1-25.000MHZ-ECT | OSCILLATOR 25.000 MHZ 3.0V SMD |
| CR5410-20 | TRANSDUCR AC/DC 0-20 AC/DC INPUT |
| MK21M-1A66C-500W | SENSOR REED SPST-NO HI TEMP |
| CR5410-100 | SENSOR CURRENT 0-100 AC/DC INPUT |
| CR5410-75 | CURRENT SENSOR 0-75 AC/DC INPUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STF202-22T1G | 制造商:ON Semiconductor 功能描述:Active Analog Filter IC |
| STF202-22T1G-CUT TAPE | 制造商:ON 功能描述:STF202-22T1G Series USB Filter with ESD Protection - TSOP-6 |
| STF202-22TC | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:USB Upstream Port Filter & TVS For EMI Filtering and ESD Protection |
| STF202-30 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:USB Upstream Port Filter & TVS For EMI Filtering and ESD Protection |
| STF202-30.TC | 制造商:Semtech Corporation 功能描述:EMI Filter Gull Wing SMD 制造商:Semtech Corporation 功能描述:1 FUNCTIONS, 6 V, DATA LINE FILTER |
发布紧急采购，3分钟左右您将得到回复。