欢迎访问ic37.com |
会员登录 免费注册
发布采购
所在地: 型号: 精确
  • 批量询价
  •  
  • 供应商
  • 型号
  • 数量
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
更多
  • USBUF02W6图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • USBUF02W6 现货库存
  • 数量6980 
  • 厂家ST(意法半导体) 
  • 封装6-TSSOPSC-88SOT-363 
  • 批号22+ 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • USBUF02W6图
  • 深圳市广百利电子有限公司

     该会员已使用本站6年以上
  • USBUF02W6 现货库存
  • 数量15500 
  • 厂家ST(意法) 
  • 封装SOT-323(SC-70) 
  • 批号23+ 
  • ★★全网低价,原装原包★★
  • QQ:1483430049QQ:1483430049 复制
  • 0755-83235525 QQ:1483430049
  • USBUF02W6图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • USBUF02W6 现货库存
  • 数量2300 
  • 厂家NXP 
  • 封装SOT323-6 
  • 批号21+ 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:1435424310QQ:1435424310 复制
  • 0755-84507451 QQ:1435424310
  • USBUF02W6图
  • 深圳市宗天技术开发有限公司

     该会员已使用本站10年以上
  • USBUF02W6 现货库存
  • 数量28600 
  • 厂家09+ 
  • 封装698 
  • 批号21+ 
  • 原装现货库存,价格优势
  • QQ:444961496QQ:444961496 复制
    QQ:2824256784QQ:2824256784 复制
  • 0755-88601327 QQ:444961496QQ:2824256784
  • USBUF02W6图
  • 深圳市拓森弘电子有限公司

     该会员已使用本站1年以上
  • USBUF02W6
  • 数量5300 
  • 厂家ST(意法) 
  • 封装SOT-323(SC-70) 
  • 批号21+ 
  • 全新原装正品,库存现货实报
  • QQ:1300774727QQ:1300774727 复制
  • 13714410484 QQ:1300774727
  • USBUF02W6图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • USBUF02W6
  • 数量4250 
  • 厂家ST/意法 
  • 封装NA/ 
  • 批号23+ 
  • 原装现货,当天可交货,原型号开票
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-82546830 QQ:3007977934QQ:3007947087
  • USBUF02W6图
  • 集好芯城

     该会员已使用本站13年以上
  • USBUF02W6
  • 数量17041 
  • 厂家ST 
  • 封装SC70-6 
  • 批号最新批次 
  • 原装原厂 现货现卖
  • QQ:3008092965QQ:3008092965 复制
    QQ:3008092965QQ:3008092965 复制
  • 0755-83239307 QQ:3008092965QQ:3008092965
  • USBUF02W6图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • USBUF02W6
  • 数量3000 
  • 厂家ST 
  • 封装SOT363 
  • 批号23+ 
  • 全新原装公司现货销售
  • QQ:1245773710QQ:1245773710 复制
    QQ:867789136QQ:867789136 复制
  • 0755-82772189 QQ:1245773710QQ:867789136
  • USBUF02W6图
  • 深圳市毅创腾电子科技有限公司

     该会员已使用本站16年以上
  • USBUF02W6
  • 数量55473 
  • 厂家ST意法半导体 
  • 封装6-TSSOPSC-88SOT-363 
  • 批号22+ 
  • ★只做原装★正品现货★原盒原标★
  • QQ:2355507162QQ:2355507162 复制
    QQ:2355507165QQ:2355507165 复制
  • 86-755-83616256 QQ:2355507162QQ:2355507165
  • USBUF02W6图
  • 深圳市硅诺电子科技有限公司

     该会员已使用本站8年以上
  • USBUF02W6
  • 数量
  • 厂家ST 
  • 封装原厂指定分销商,有意请来电或QQ洽谈 
  • 批号17+ 
  • QQ:1091796029QQ:1091796029 复制
    QQ:916896414QQ:916896414 复制
  • 0755-82772151 QQ:1091796029QQ:916896414
  • USBUF02W6图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • USBUF02W6
  • 数量30000 
  • 厂家ST 
  • 封装SC70-6 
  • 批号23+ 
  • 代理全新原装现货,价格优势
  • QQ:1774550803QQ:1774550803 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82777855 QQ:1774550803QQ:2924695115
  • USBUF02W6图
  • 深圳市一呈科技有限公司

     该会员已使用本站9年以上
  • USBUF02W6
  • 数量5880 
  • 厂家ST(意法) 
  • 封装SOT-323(SC-70) 
  • 批号23+ 
  • ▉原装正品▉力挺实单全系列可订
  • QQ:3003797048QQ:3003797048 复制
    QQ:3003797050QQ:3003797050 复制
  • 0755-82779553 QQ:3003797048QQ:3003797050
  • USBUF02W6图
  • 首天国际(深圳)科技有限公司

     该会员已使用本站16年以上
  • USBUF02W6
  • 数量30000 
  • 厂家SGS-THOMSON 
  • 封装原厂封装 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:528164397QQ:528164397 复制
    QQ:1318502189QQ:1318502189 复制
  • 0755-82807802 QQ:528164397QQ:1318502189
  • USBUF02W6图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • USBUF02W6
  • 数量3000 
  • 厂家ST 
  • 封装SOT363 
  • 批号23+ 
  • 全新原装公司现货销售!
  • QQ:867789136QQ:867789136 复制
    QQ:1245773710QQ:1245773710 复制
  • 0755-82772189 QQ:867789136QQ:1245773710
  • USBUF02W6图
  • 深圳市羿芯诚电子有限公司

     该会员已使用本站7年以上
  • USBUF02W6
  • 数量5600 
  • 厂家SMICYO 
  • 封装原厂封装 
  • 批号新年份 
  • 羿芯诚只做原装,原厂渠道,价格优势可谈!
  • QQ:2853992132QQ:2853992132 复制
  • 0755-82570683 QQ:2853992132
  • USBUF02W6图
  • 深圳市积美福电子科技有限公司

     该会员已使用本站4年以上
  • USBUF02W6
  • 数量1560 
  • 厂家ST/意法 
  • 封装SOT-323-6L 
  • 批号21+ 
  • 只做原装正品,深圳现货库存
  • QQ:647176908QQ:647176908 复制
    QQ:499959596QQ:499959596 复制
  • 0755-83228296 QQ:647176908QQ:499959596
  • USBUF02W6图
  • 深圳市恒嘉威智能科技有限公司

     该会员已使用本站7年以上
  • USBUF02W6
  • 数量30000 
  • 厂家ST(意法半导体) 
  • 封装SOT-323-6L 
  • 批号21+ 
  • 原装正品价格绝对优势
  • QQ:1036846627QQ:1036846627 复制
    QQ:2274045202QQ:2274045202 复制
  • -0755-23942980 QQ:1036846627QQ:2274045202
  • USBUF02W6图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • USBUF02W6
  • 数量6980 
  • 厂家ST 
  • 封装22+ 
  • 批号SOT-23 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • USBUF02W6图
  • 深圳市西昂特科技有限公司

     该会员已使用本站13年以上
  • USBUF02W6
  • 数量3265 
  • 厂家STMicroelect 
  • 封装IC EMI FILTE 
  • 批号09+ 
  • 全新原装现货特价
  • QQ:2881291855QQ:2881291855 复制
    QQ:1158574719QQ:1158574719 复制
  • 0755-82524647 QQ:2881291855QQ:1158574719
  • USBUF02W6图
  • 深圳市三得电子有限公司

     该会员已使用本站15年以上
  • USBUF02W6
  • 数量91752 
  • 厂家厂NA 
  • 封装SOT-363 
  • 批号2024 
  • 深圳原装现货库存,欢迎咨询合作
  • QQ:414322027QQ:414322027 复制
    QQ:565106636QQ:565106636 复制
  • 13509684848 QQ:414322027QQ:565106636
  • USBUF02W6图
  • 深圳市湘达电子有限公司

     该会员已使用本站10年以上
  • USBUF02W6
  • 数量6600 
  • 厂家ST 
  • 封装SOT-323-6(TSSOP-6) 
  • 批号20+ 
  • 原盒原装原标签,市场最低价。
  • QQ:215672808QQ:215672808 复制
  • 0755-83229772 QQ:215672808
  • USBUF02W6图
  • 深圳市正信鑫科技有限公司

     该会员已使用本站12年以上
  • USBUF02W6
  • 数量17266 
  • 厂家ST 
  • 封装原厂封装 
  • 批号22+ 
  • 原装正品★真实库存★价格优势★欢迎来电洽谈
  • QQ:1686616797QQ:1686616797 复制
    QQ:2440138151QQ:2440138151 复制
  • 0755-22655674 QQ:1686616797QQ:2440138151
  • USBUF02W6图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • USBUF02W6
  • 数量29054 
  • 厂家 
  • 封装 
  • 批号2023+ 
  • 绝对原装正品全新进口深圳现货
  • QQ:1002316308QQ:1002316308 复制
    QQ:515102657QQ:515102657 复制
  • 深圳分公司0755-83777708“进口原装正品专供” QQ:1002316308QQ:515102657
  • USBUF02W6图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • USBUF02W6
  • 数量9328 
  • 厂家ST-意法半导体 
  • 封装SOT-323-6 
  • 批号▉▉:2年内 
  • ▉▉¥4.5元一有问必回一有长期订货一备货HK仓库
  • QQ:43871025QQ:43871025 复制
  • 131-4700-5145---Q-微-恭-候---有-问-秒-回 QQ:43871025
  • USBUF02W6图
  • 深圳市华来深电子有限公司

     该会员已使用本站13年以上
  • USBUF02W6
  • 数量8560 
  • 厂家STM 
  • 封装SOT-363 
  • 批号17+ 
  • 受权代理!全新原装现货特价热卖!
  • QQ:1258645397QQ:1258645397 复制
    QQ:876098337QQ:876098337 复制
  • 0755-83238902 QQ:1258645397QQ:876098337
  • USBUF02W6图
  • 深圳市珩瑞科技有限公司

     该会员已使用本站2年以上
  • USBUF02W6
  • 数量7958 
  • 厂家ST 
  • 封装SOT-323-6L 
  • 批号21+ 
  • ███全新原装正品,支持实单
  • QQ:2938238007QQ:2938238007 复制
    QQ:1840507767QQ:1840507767 复制
  • -0755-82578309 QQ:2938238007QQ:1840507767
  • USBUF02W6图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • USBUF02W6
  • 数量65000 
  • 厂家ST 
  • 封装SOT-23 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
  • QQ:2881495753QQ:2881495753 复制
  • 0755-23605827 QQ:2881495753
  • USBUF02W6图
  • 深圳市凯睿晟科技有限公司

     该会员已使用本站10年以上
  • USBUF02W6
  • 数量68826 
  • 厂家ST/意法 
  • 封装SOT-323-6L 
  • 批号24+ 
  • 百域芯优势 实单必成 可开13点增值税
  • QQ:2885648621QQ:2885648621 复制
  • 0755-23616725 QQ:2885648621
  • USBUF02W6图
  • 深圳市芯柏然科技有限公司

     该会员已使用本站7年以上
  • USBUF02W6
  • 数量26800 
  • 厂家ST 
  • 封装SOT-363 
  • 批号22+ 
  • 授权代理直销,原厂原装现货,假一罚十,特价销售
  • QQ:287673858QQ:287673858 复制
  • 0755-82533534 QQ:287673858

产品型号USBUF02W6的概述

芯片USBUF02W6的概述 USBUF02W6是一种宽带宽、低功耗的双通道运算放大器,广泛应用于信号处理和放大电路。该芯片在各种工业应用、消费电子和医疗设备中都有着重要的应用价值。USBUF02W6采用了先进的CMOS工艺,具有高输入阻抗、低输出失真等优点,使其适合用于高保真音频信号的放大和处理。 芯片USBUF02W6的详细参数 USBUF02W6的主要参数包括: - 供电电压:3V至15V - 输入电压范围:常见的输入电压范围为0V至Vcc-1.5V - 增益带宽产品:约为4MHz - 输入阻抗:高达10MΩ - 输出电流:可达50mA - 共模抑制比(CMRR):80dB - 功耗:在5V供电情况下,功耗典型值为1mA - 温度范围:-40°C至+85°C适应各种环境 这些参数使得USBUF02W6在信号放大时能够维持良好的线性度和稳定性。 厂家、包装、封装 U...

产品型号USBUF02W6的Datasheet PDF文件预览

USBUFxxW6  
®
EMI FILTER AND LINE TERMINATION  
FOR USB UPSTREAM PORTS  
A.S.D.  
APPLICATIONS  
EMI Filter and line termination for USB upstream  
ports on:  
- USB Hubs  
- PC peripherals  
FEATURES  
Monolithic device with recommended line termi-  
nation for USB upstream ports  
Integrated Rt series termination and Ct bypass-  
ing capacitors.  
Integrated ESD protection  
Small package size  
SOT323-6L  
DESCRIPTION  
The USB specification requires upstream ports  
to be terminated with pull-up resistors from the  
D+ and D- lines to Vbus. On the  
implementation of USB systems, the radiated  
and conducted EMI should be kept within the  
required levels as stated by the FCC  
regulations. In addition to the requirements of  
termination and EMC compatibility, the  
computing devices are required to be tested for  
ESD susceptibility.  
FUNCTIONAL DIAGRAM  
3.3 V  
Rp  
Rt  
D1  
D4  
Ct  
The USBUFxxW6 provides the recommended line  
termination while implementing a low pass filter to  
limit EMI levels and providing ESD protection  
which exceeds IEC61000-4-2 level 4 standard.  
The device is packaged in a SOT323-6L which is  
the smallest available lead frame package (50%  
smaller than the standard SOT23).  
Grd  
3.3 V  
D3  
Rt  
D2  
Ct  
BENEFITS  
EMI / RFI noise suppression  
Required line termination for USB upstream  
ports  
ESD protection exceeding IEC61000-4-2 level 4  
High flexibility in the design of high density  
boards  
Rt  
Rp  
Ct  
CODE 01  
CODE 02  
Tolerance  
33  
22Ω  
1.5kΩ  
1.5kΩ  
±10%  
47pF  
47pF  
±20%  
Tailored to meet USB 1.1 standard  
±10%  
TM: ASD and TRANSIL are a trademarks of STMicroelectronics.  
March 2002 - Ed: 3A  
1/9  
USBUFxxW6  
COMPLIES WITH THE FOLLOWING ESD  
STANDARDS:  
IEC61000-4-2, level 4  
±15 kV (air discharge)  
±8 kV (contact discharge)  
MIL STD 883E, Method 3015-7  
Class 3 C = 100 pF R = 1500 Ω  
3 positive strikes and 3 negative strikes (F = 1 Hz)  
ABSOLUTE RATINGS (Tamb = 25°C)  
Symbol  
Parameter  
Value  
Unit  
VPP  
ESD discharge IEC 61000-4-2, air discharge  
ESD discharge IEC 61000-4-2, contact discharge  
ESD discharge - MIL STD 883E - Method 3015-7  
±16  
±9  
±25  
kV  
kV  
kV  
Tj  
Tstg  
TL  
Maximum junction temperature  
Storage temperature range  
150  
- 55 to +150  
260  
°C  
°C  
Lead solder temperature (10 second duration)  
Operating temperature range  
Power rating per resistor  
°C  
Top  
Pr  
0 to 70  
100  
°C  
mW  
TECHNICAL INFORMATION  
Fig. A1: USB Standard requirements  
3.3V  
1.5k  
Rt  
Rt  
D+  
D-  
D+  
D-  
Full-speed or  
Low-speed USB  
Transceiver  
Full-speed USB  
Transceiver  
Ct  
Ct  
Ct  
Twisted pair shielded  
Rt  
Rt  
Zo = 90ohms  
5m max  
Ct  
15k 15k  
Hub 0 or  
Host or  
Full-speed function  
Hub port  
FULL SPEED CONNECTION  
3.3V  
1.5k  
Rt  
Rt  
D+  
D-  
D+  
D-  
Full-speed or  
Low-speed USB  
Transceiver  
Low-speed USB  
Transceiver  
Ct  
Ct  
Ct  
Ct  
Untwisted unshielded  
3m max  
Rt  
15k 15k  
Rt  
Hub 0 or  
Host or  
Low-speed function  
Hub port  
LOW SPEED CONNECTION  
2/9  
USBUFxxW6  
APPLICATION EXAMPLE  
Fig. A2: Implementation of ST' solutions for USB ports  
USBUF01W6  
Upstream port  
Downstream port  
USBDF01W5  
Rt  
D+  
Gnd  
D2  
D1  
D+  
CABLE  
Ct  
D+  
D-  
D+ in  
Gnd  
Rd  
D+ out  
D+  
D-  
Ct  
Ct  
Gnd  
D-  
Rt  
Rt  
3.3 V  
Rd  
Ct  
Rp  
Rt  
D- in  
D- out  
D3  
D4  
D-  
3.3V  
FULL SPEED CONNECTION  
USBUF01W6  
Upstream port  
Downstream port  
USBDF01W5  
Rt  
D+  
Gnd  
D2  
D1  
D+  
CABLE  
D+  
Ct  
D+ in  
Gnd  
Rd  
D+ out  
D+  
D-  
Ct  
Ct  
Gnd  
D-  
Rt  
Rt  
3.3 V  
Rd  
Ct  
Rp  
D-  
Rt  
D- in  
D- out  
D3  
D4  
D-  
3.3V  
LOW SPEED CONNECTION  
3/9  
USBUFxxW6  
EMI FILTERING  
Current FCC regulations requires that class B computing devices meet specified maximum levels for both  
radiated and conducted EMI.  
- Radiated EMI covers the frequency range from 30MHz to 1GHz.  
- Conducted EMI covers the 450kHz to 30MHz range.  
For the types of devices utilizing the USB, the most difficult test to pass is usually the radiated EMI test. For  
this reason the USBUFxxW6 device is aiming to minimize radiated EMI.  
The differential signal (D+ and D-) of the USB does not contribute significantly to radiated or conducted  
EMI because the magnetic field of both conductors cancels each other.  
The inside of the PC environment is very noisy and designers must minimize noise coupling from the  
different sources. D+ and D- must not be routed near high speed lines (clocks spikes).  
Induced common mode noise can be minimized by running pairs of USB signals parallel to each other and  
running grounded guard trace on each side of the signal pair from the USB controller to the USBUF device.  
If possible, locate the USBUF device physically near the USB connectors. Distance between the USB con-  
troller and the USB connector must be minimized.  
The 47pF (Ct) capacitors are used to bypass high frequency energy to ground and for edge control, and  
are placed between the driver chip and the series termination resistors (Rt). Both Ct and Rt should be  
placed as close to the driver chip as is practicable.  
The USBUFxxW6 ensures a filtering protection against ElectroMagnetic and RadioFrequency Interferences  
thanks to its low-pass filter structure. This filter is characterized by the following parameters :  
- cut-off frequency  
- Insertion loss  
- high frequency rejection.  
Fig. A3: USBUFxxW6 typical attenuation curve.  
Fig. A4: Measurement configuration  
S21 (dB)  
0
TEST BOARD  
50  
-10  
-20  
-30  
50Ω  
Vg  
1
10  
100  
1,000  
Frequency (MHz)  
ESD PROTECTION  
In addition to the requirements of termination and EMC compatibility, computing devices are required to be  
tested for ESD susceptibility. This test is described in the IEC 61000-4-2 and is already in place in Europe.  
This test requires that a device tolerates ESD events and remains operational without user intervention.  
The USBUFxxW6 is particularly optimized to perform ESD protection. ESD protection is based on the use  
of device which clamps at :  
V
cl = VBR + R .IPP  
d
This protection function is splitted in 2 stages. As shown in figure A5, the ESD strikes are clamped by the  
first stage S1 and then its remaining overvoltage is applied to the second stage through the resistor Rt.  
Such a configuration makes the output voltage very low at the output.  
4/9  
USBUFxxW6  
Fig. A5: USBUFxxW6 ESD clamping behavior  
Rg  
S1  
S2  
Rd  
Rt  
Rd  
Vinput  
Rload  
VPP  
Voutput  
VBR  
VBR  
Device  
to be  
ESD Surge  
USBUF01W6  
protected  
Fig. A6: Measurement board  
ESD  
SURGE  
TEST BOARD  
16kV  
Air  
Discharge  
Vin  
Vout  
To have a good approximation of the remaining voltages at both Vin and Vout stages, we give the typical  
dynamical resistance value Rd. By taking into account these following hypothesis : Rt>Rd, Rg>Rd and  
Rload>Rd, it gives these formulas:  
Rg  
.VBR + R  
d
.Vg  
Vinput =  
Rg  
Rt  
.VBR + R  
d
.Vinput  
Voutput =  
Rt  
The results of the calculation done for Vg=8kV, Rg=330(IEC61000-4-2 standard), VBR=7V (typ.)  
and Rd = 1(typ.) give:  
Vinput = 31.2 V  
Voutput = 7.95 V  
This confirms the very low remaining voltage across the device to be protected. It is also important to note  
that in this approximation the parasitic inductance effect was not taken into account. This could be few  
tenths of volts during few ns at the Vinput side. This parasitic effect is not present at the Voutput side due  
the low current involved after the resistance Rt.  
The measurements done hereafter show very clearly (Fig. A7) the high efficiency of the ESD protection :  
- no influence of the parasitic inductances on Voutput stage  
- Voutput clamping voltage very close to VBR (breakdown voltage) in the positive way  
and -VF (forward voltage) in the negative way  
5/9  
USBUFxxW6  
Fig. A7: Remaining voltage at both stages S1 (Vinput) and S2 (Voutput) during ESD surge.  
Vin  
Vin  
Vout  
Vout  
a. Positive surge  
b.Negative surge  
Please note that the USBUFxxW6 is not only acting for positive ESD surges but also for negative ones. For  
these kinds of disturbances it clamps close to ground voltage as shown in Fig. A7b.  
LATCH-UP PHENOMENA  
The early ageing and destruction of IC’s is often due to latch-up phenomenon which is mainly induced by  
dV/dt. Thanks to its structure, the USBUFxxW6 provides a high immunity to latch-up phenomenon by  
smoothing very fast edges.  
CROSSTALK BEHAVIOR  
Fig. A8: Crosstalk phenomenon  
RG1  
Line 1  
VG1  
RL1  
α1 VG1 + β12 VG2  
RG2  
Line 2  
VG2  
RL2  
α2 VG2 + β21 VG1  
DRIVERS  
RECEIVERS  
The crosstalk phenomenon is due to the coupling between 2 lines. The coupling factor ( β12 or β21 ) in-  
creases when the gap across lines decreases, particularly in silicon dice. In the example above the ex-  
pected signal on load RL2 is α2VG2, in fact the real voltage at this point has got an extra value β21VG1. This  
part of the VG1 signal represents the effect of the crosstalk phenomenon of the line 1 on the line 2. This  
phenomenon has to be taken into account when the drivers impose fast digital data or high frequency ana-  
log signals in the disturbing line. The perturbed line will be more affected if it works with low voltage signal  
or high load impedance (few k).  
6/9  
USBUFxxW6  
Fig. A9: Analog crosstalk measurements  
Fig. A10: Typical analog crosstalk results  
Analog crosstalk (dB)  
0
-20  
-40  
TEST BOARD  
50  
UUx  
50Ω  
-60  
Vg  
-80  
-100  
1
10  
100  
1,000  
Frequency (MHz)  
Figure A9 gives the measurement circuit for the analog crosstalk application. In figure A10, the curve  
shows the effect of the D+ cell on the D- cell. In usual frequency range of analog signals (up to 100MHz) the  
effect on disturbed line is less than -37dB.  
Fig. A11: Digital crosstalk measurements configuration  
+5V  
+5V  
74HC04  
74HC04  
3.3 V  
Rt  
Ct  
Rp  
D+  
D4  
3.3 V  
D3  
D1  
VG1  
Square  
Pulse  
Gnd  
D2  
+5V  
D-  
Rt  
Ct  
Generator  
β
21 VG1  
Figure A11 shows the measurement circuit used to quantify the crosstalk effect in a classical digital appli-  
cation.  
Fig. A12: Digital crosstalk results  
Figure A12 shows, with a signal from 0 to 5V and  
rise time of few ns, the impact on the disturbed line  
is less than 250mV peak to peak. No data distur-  
bance was noted on the other line.The measure-  
ments performed with falling edges gives an  
impact within the same range.  
VG1  
β21VG1  
7/9  
USBUFxxW6  
TRANSITION TIMES  
This low pass filter has been designed in order to meet the USB 1.1 standard requirements that implies the  
signal edges are maintained within the 4ns-20ns stipulated USB specification limits. To verify this point, we  
have measured the rise time of VD+ voltage (please refer to Fig. A13) with and without the USBUFxxW6  
device.  
Fig. A13: Typical rise and fall times: measure-  
ments configuration  
Fig. A14: Typical rise times with and without pro-  
tection device  
without  
+5V  
+5V  
74HC04  
74HC04  
D+  
+5V  
USBUF  
-xxW6  
VD+  
+5V  
Square  
Pulse  
D-  
Generator  
with  
Figure A13 shows the circuit used to perform measurements of the transition times. In Figure A14, we see  
the results of such measurements:  
trise = 3.8ns  
trise = 7.8ns  
driver alone  
with protection device  
The adding of the protection device causes the rise time increase of roughly 4ns.  
Note: Rise time has been measured between 10% and 90% of the signal (resp. 90% and 10%)  
8/9  
USBUFxxW6  
PACKAGE MECHANICAL DATA.  
SOT323-6L  
DIMENSIONS  
Millimeters Inches  
Min.  
A2  
A
REF.  
A1  
Min.  
0.8  
0
Max.  
Max.  
0.043  
0.004  
0.039  
0.012  
0.007  
0.086  
0.053  
A
A1  
A2  
b
1.1  
0.1  
1
0.031  
0
D
0.8  
0.15  
0.1  
1.8  
1.15  
0.031  
0.006  
0.004  
0.071  
0.045  
e
e
0.3  
0.18  
2.2  
1.35  
c
D
E
E
H
e
0.65 Typ.  
0.025 Typ.  
Q
c
H
Q
1.8  
0.1  
2.4  
0.4  
0.071  
0.004  
0.094  
0.016  
b
MECHANICAL SPECIFICATIONS  
RECOMMENDED FOOTPRINT (mm)  
0.3mm  
Lead plating  
Tin-lead  
Lead plating thickness  
5µm min  
25µm max  
1mm  
Lead material  
Sn / Pb  
(70% to 90%Sn)  
2.9mm  
Lead coplanarity  
Body material  
Flammability  
10µm max  
Molded epoxy  
UL94V-0  
1mm  
0.35mm  
MARKING  
Ordering code  
USBUF01W6  
USBUF02W6  
Marking  
UU1  
Package  
SOT323-6L  
SOT323-6L  
Weight  
5.4 mg  
5.4 mg  
Base qty  
Delivery mode  
Tape & reel  
3000  
3000  
UU2  
Tape & reel  
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of  
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by  
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to  
change without notice. This publication supersedes and replaces all information previously supplied.  
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-  
proval of STMicroelectronics.  
The ST logo is a registered trademark of STMicroelectronics  
© 2002 STMicroelectronics - Printed in Italy - All rights reserved.  
STMicroelectronics GROUP OF COMPANIES  
Australia - Brazil - Canada - China - Finland - France - Germany  
Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore  
Spain - Sweden - Switzerland - United Kingdom - United States.  
http://www.st.com  
9/9  
配单直通车
USBUF02W6产品参数
型号:USBUF02W6
Brand Name:STMicroelectronics
生命周期:Active
IHS 制造商:STMICROELECTRONICS
零件包装代码:SC-70
包装说明:TSSOP, TSSOP6,.08
针数:6
制造商包装代码:SOT323
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:43 weeks 2 days
风险等级:0.68
差分输出:YES
接口集成电路类型:OTHER TERMINATOR
JESD-30 代码:R-PDSO-G6
JESD-609代码:e3
长度:2 mm
湿度敏感等级:1
功能数量:1
信号线数量:2
端子数量:6
最高工作温度:70 °C
最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP
封装等效代码:TSSOP6,.08
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260
电源:3.3 V
认证状态:Not Qualified
座面最大高度:1.1 mm
子类别:Bus Terminators
标称供电电压:3.3 V
表面贴装:YES
温度等级:OTHER
端子面层:Matte Tin (Sn) - annealed
端子形式:GULL WING
端子节距:0.65 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.25 mm
Base Number Matches:1
  •  
  • 供货商
  • 型号 *
  • 数量*
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
批量询价选中的记录已选中0条,每次最多15条。
 复制成功!