参数资料
| 型号： | 78P2351R-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR 78P2351R |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
Design Guidelines for TERIDIAN 78P235x LIUs
RETURN LOSS MATCHING CIRCUIT
Meeting the 15dB return loss requirements at the CMI-coded coax ports often requires a significant amount of
engineering hours due to the unique impedance characteristics of each system design, particularly at frequencies
above 200MHz. Return loss is a parameter that can only be measured at the system level. Evaluating any
individual component’s return loss won’t be efficient and will provide misleading results.
For challenging environments where the coax connector, transformer, and LIU are not located near each other or
even on the same card, a flexible termination scheme is required to meet the return loss performance for both
transmit and receive paths. The diagram in Figure 8 below shows a suggested circuit to optimize the impedance
on the transmission lines by adding discrete component footprints right near the transformers in the differential
paths. The capacitance (C) and inductance (L) values are unique for each design and will generally be in the
range of a few nH or pF.
Transformer Dual CT
T1
VCC
C
R
75
75
BNC
BAV99
L
C
75
R
75
BAV99
BNC
BAV99
0.1uF
L
To LIU
C
R
75
L
BAV99
C
R
75
L
Figure 8. (Optional) Discrete components to improve the return loss
75
Page 8 of 15
? 2008 Teridian Semiconductor Corp.
Rev 2.1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 78P2351R-IM | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Serial 155M NRZ to CMI Converter |
| 78P2351R-IM/F | 功能描述:接口 - 专用 Serial 155M NRZ to CMI Converter 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 |
| 78P2351R-IMR | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Serial 155M NRZ to CMI Converter |
| 78P2351R-IMR/F | 功能描述:接口 - 专用 Serial 155M NRZ to CMI Converter 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 |
| 78P2352 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Dual Channel OC-3/ STM1-E/ E4 LIU |
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