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参数资料
| 型号： | DS2490S |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 26/50页 |
| 文件大小： | 0K |
| 描述： | IC BRIDGE CLIP USB TO 1-W 24SOIC |
| 标准包装： | 31 |
| 应用： | USB |
| 接口： | 1 线 |
| 电源电压： | 3 V ~ 5.5 V |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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DS2490
32 of 50
Data Value Description
Data
NRS A value of 1 indicates an error with one of the following:
1-WIRE RESET did not reveal a Presence Pulse. SET
PATH command did not get a Presence Pulse from the
branch that was to be connected. No response from one
or more ROM ID bits during a SEARCH ACCESS
command.
A value of 0 in any of these fields indicates that the error
condition was not detected.
USB TRANSCEIVER
Integrated within the DS2490 is a USB-compliant bus transceiver. To comply with USB cable
termination requirements, resistors external to the DS2490 must be installed as shown in Figure 10. The
24
, 1% tolerance resistors are necessary to bring the total steady state resistance of each driver to the
28
to 43 range required by the USB core specification. The 1.5k pullup resistor is required to
identify the DS2490 as a high speed USB device to the up-stream HUB. The 33pF capacitors are optional
but are useful for edge rate control and for bypassing high frequency energy to ground for EMI reduction
purposes.
USB Transceiver Termination Figure 10
USB
TRANSCEIVER
24
, 1%
24
, 1%
DS2490
D+
D-
1.5k
5%
VB
(VB = 3.3V + 10%)
TO/FROM
HIGH SPEED
USB CABLE
33pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2490S+ | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Rail/Tube 制造商:Maxim Integrated Products 功能描述:USB 1-W BRIDGE CHIP 24-SO LF 制造商:Maxim Integrated Products 功能描述:Bulk |
| DS2490S+T&R | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Tape and Reel |
| DS2490S+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:USB to 1-Wire Bridge Chip |
| DS2490X | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB to 1-Wire Bridge Chip(468.41 k) |
| DS2490X/T&R | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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