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参数资料
| 型号： | IP4252CZ8-4-TTL |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | 电路保护 |
| 英文描述： | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
| 封装： | IP4251CZ12-6-TTL<SOT1167-1 (HUSON12)|<<http://www.nxp.com/packages/SOT1167-1.html<1<Always Pb-free,;IP4251CZ16-8-TTL<SOT974-2 (HXSON16)|<<http://www.nxp.com/packages/SOT9 |
| 文件页数： | 18/18页 |
| 文件大小： | 319K |
| 代理商： | IP4252CZ8-4-TTL |
IP4251_52_53_54-TTL
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 5 May 2011
9 of 18
NXP Semiconductors
IP4251/52/53/54-TTL
Integrated 4-, 6- and 8-channel passive filter network
6.2 Selection
The selection of one of the filter devices has to be performed depending on the maximum
clock frequency, driver strength, capacitive load of the sink, and also the maximum
applicable rise and fall times.
6.2.1 SDHC and MMC memory interface
The Secure Digital High Capacity (SDHC) memory card interface standard specification
and the Multi Media Card (MMC) (JESD 84A43) standard specification recommend a rise
and fall time of 25 % to 62.5 % (62.5 % to 25 % respectively) of 3 ns or less for the input
signal of the receiving interface side.
Assuming a typical capacitance of about 20 pF for the SDHC memory card itself, and
approximately 4 pF to 7 pF for the Printed-Circuit Board (PCB) and the card holder,
IP4252CZ12-6-TTL (6 channels, Rs(ch) =40 Ω, Cch =12pF at Vbias(DC) =2.5 V) is a
matching selection to filter and protect all relevant interface pins such as CLK, CMD, and
DAT0 to DAT3/CD. Please refer to Figure 7 for a general example of the implementation
of the device in an SDHC card interface.
In case additional channels such as write-protect or a mechanical card-detection switch
are used, the IP4252CZ16-8-TTL (8 channels, Rs(ch) =40 Ω, Cch =12pF at
Vbias(DC) = 2.5 V) offers two additional channels.
相关PDF资料 |
PDF描述 |
|---|---|
| IP4253CZ12-6-TTL | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
| IP4253CZ16-8-TTL | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
| IP4253CZ8-4-TTL | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
| IP4254CZ12-6-TTL | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
| IP4254CZ16-8-TTL | Integrated 4-, 6- and 8-channel passive filter network with ESD protection |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IP4252CZ8-4-TTL,13 | 功能描述:信号调节 INTEGRATED 4- 6- AND 8-CH PASS FLTR W/ESD RoHS:否 制造商:EPCOS 产品:Duplexers 频率:782 MHz, 751 MHz 频率范围: 电压额定值: 带宽: 阻抗:50 Ohms 端接类型:SMD/SMT 封装 / 箱体:2.5 mm x 2 mm 工作温度范围:- 30 C to + 85 C 封装:Reel |
| IP4252CZ8-4-TTL,132 | 制造商:NXP Semiconductors 功能描述: |
| IP4253 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Integrated 4-, 6- and 8-channel passive filter network with ESD protection to IEC 61000-4-2, level 4 |
| IP4253CZ12 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Integrated 4-, 6- and 8-channel passive filter network with ESD protection to IEC 61000-4-2, level 4 |
| IP4253CZ12-6 | 制造商:NXP Semiconductors 功能描述:DIODE ESD 6 CH PAS FIL SOT984-1 制造商:NXP Semiconductors 功能描述:DIODE, ESD, 6 CH, PAS FIL, SOT984-1 |
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