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EPT7069G

EPT7069G

  • 厂商:

    PCA

  • 封装:

  • 描述:

    EPT7069G - 120W Token Ring Front End Filter Module - PCA ELECTRONICS INC.

  • 详情介绍
  • 数据手册
  • 价格&库存
EPT7069G 数据手册
120Ω Token Ring Front End Filter Module ELECTRONICS INC. EPT7069G • Recommended for use in both UTP and STP • • Enhanced Common Mode Rejection Capability • • Robust construction in low profile allows for severe soldering processes • • Complies with or exceeds IEEE 802.5 Requirements • Electrical Parameters @ 25° C Impedance [Xmit/Rcv] Media Side 150 Cable Side 120 Insertion Loss (dB) 1-16 32 36 44 MHz (Max.) MHz (Min.) MHz (Min.) MHz (Min.) -.8 -7 -18 -30 1-6 MHz -18 Return Loss (dB Min.) 6-17 MHz -12 17-25 MHz -8 1-30 MHz -40 Common Mode Rejection (dB Min.) 30-100 MHz -20 100-200 MHz -15 200-300 MHz -10 Schematic 7 XMT+ 2 150 Ω XMT- 3 Filter 11 B2-COM 1.118:1 10 B1-120 8 12 A2-COM 13 A1-120 GND A 4 GND 6 Pins 1, 5, 9 & 14 are not connected. Package A J Pin 1 I.D. PCA EPT7069G Date Code Dimensions N Dim. A B C D E F G H I J K L M N P Q Min. .780 .510 .090 .595 .003 .097 .660 .017 .008 .090 0° .025 (Inches) Max. Nom. .800 .530 .100 .605 .010 .103 .680 .022 .013 .100 8° .045 .790 .520 .095 .600 .005 .100 .670 .020 .011 .095 4° .040 .030 .100 .085 .700 (millimeters) Min. Max. Nom. 19.81 12.95 2.29 15.11 .076 2.46 16.76 .432 .203 2.29 0° .635 20.32 13.46 2.54 15.37 .254 2.62 17.27 .559 .330 2.54 8° 1.14 20.07 13.21 2.41 15.24 .127 2.54 17.02 .508 2.79 2.41 4° 1.02 .762 2.54 2.16 17.78 B Q Pad Layout P D E C M K L I H F G PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CST7069Ga Rev. 1 7/7/98 Product performance is limited to specified parameters. Data is subject to change without prior notice. TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com 120Ω Token Ring Front End Filter Module ELECTRONICS INC. EPT7069G The circuit below is a guideline for interconnecting PCA’s EPT7069G with a typical Token Ring PHY chip for 4 Mb/16Mb applications over STP or UTP cable. Further details of system design should be obtained from the specific chip manufacturer. Note that this module is optimized for a “voltage source” driver such as TI380C series. Only one type of cable should be driven by the module: either UTP or STP. This module is ideally suited for applications with only one RJ45 connector installed. Changing to STP is accomplished by using an adaptor without any need for additional impedance transforming device embedded in it. The same approach is usable if one were to drive the European standard 120Ω cable, which poses no problems. Note that the receiver side filtering is identical, thus making it possible for use in a DTR application as well. Consider this a cost effective solution for almost all Token Ring applications using this chip or similar chips. The pull down resistors to chassis via a cap shown around the RJ45 connector have been known to suppress unwanted radiation that unused wires pick up from the immediate environment. This is specially true if driving UTP cable. Their placement and use are to be considered carefully before a design is finalized. No specific recommendation is made here for phantom circuitry, implementation varies. Please note that additional emission control has been observed if both nodes of the phantom bypass capacitor on the transmit channel are pulled to the chassis ground via suitable capacitors. It is recommended that there be a neat separation of ground planes in the layout. It is generally accepted practice to limit the plane off at least 0.05 inches away from the chip side pins of EPT7069G. There need not be any ground plane beyond this point. For best results, PCB designer should design the outgoing traces preferably to be 75Ω/50Ω, balanced and well coupled to achieve minimum radiation from these traces. Typical Application Circuit Connection to TI380C30 (or Equivalent) Rcv+ 150Ω 2 3 12 11 Rcv Channel 13 10 Rcv- EPT7069G +5V +5V 50Ω/2W 6 4 Chassis Ground PHOUTA PHOUTB 11 50Ω/2W 10µF 10µF 12 Xmit Channel 13 10 C* 4 RU 5 3 TU 6 1 2 7 8 RJ45 TI380C30 Xmit+ 100Ω 442Ω 2 EPT7069G 6 4 Chassis Ground XmitNotes : 1. 2. 3. 4. 100Ω 3 Suggested phantom circuit is for reference only. Applications Vary. Phantom return on Rcv channel at pins 11 and 12 are not shown. Your application may suffice by using an external inductor pulled to ground. C* : Primary center taps may be pulled to ground by Caps to enhance common mode attenuation. PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CST7069Gb Rev. 1 7/7/98 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com
EPT7069G
1. 物料型号:EPT7069G

2. 器件简介: - EPT7069G是一个增强型共模抑制能力的前端滤波模块,适用于UTP和STP电缆。 - 符合或超过IEEE 802.5标准要求。 - 低轮廓结构,适用于严苛的焊接过程。

3. 引脚分配: - 引脚1、5、9和14未连接。

4. 参数特性: - 在25°C条件下的电气参数如下表所示:

| 频率范围 | 阻抗(传输/接收)媒体侧 | 插入损耗(dB) | 回波损耗(dB) | 共模抑制(dB) | | --- | --- | --- | --- | --- | | 1-16 MHz(最大值) | 32 MHz(最小值) | 36 MHz(最小值) | 44 MHz(最小值) | 1-6 MHz | 6-17 MHz | 17-25 MHz | 1-30 MHz | 30-100 MHz | 100-200 MHz | 200-300 MHz | | 电缆侧120 | -8 | -7 | -18 | -30 | -18 | -12 | -8 | -40 | -20 | -15 | -10 |

5. 功能详解: - 该模块是为与典型的令牌环PHY芯片(例如TI380C系列)互连而设计的,适用于4Mb/16Mb应用。 - 模块优化为“电压源”驱动器。 - 该模块适合只有一个RJ45连接器安装的应用。 - 通过适配器可以轻松切换到STP,无需额外的阻抗变换设备。 - 接收侧滤波相同,因此也可以用于DTR应用。

6. 应用信息: - 该模块是一个成本效益高的解决方案,适用于几乎所有使用此芯片或类似芯片的令牌环应用。 - 建议在设计最终确定前仔细考虑围绕RJ45连接器的下拉电阻器到底盘的布局和使用。

7. 封装信息: - 封装尺寸如下表所示:

| 尺寸 | 英寸 | 英寸 | 英寸 | 毫米 | 毫米 | 毫米 | | --- | --- | --- | --- | --- | --- | --- | | 最小值 | 最大值 | 标称值 | 最小值 | 最大值 | 标称值 | | A | B | C | D | E | F | G | | H | I | J | K | L | M | N | | O | P | Q | | | | |
EPT7069G 价格&库存

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