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FIN1108

更新时间： 2024-02-29 04:41:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
7页	478K
描述
LVDS 8 Port High Speed Repeater

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技术参数
数据手册

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FIN1108 技术参数

生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP, TSSOP48,.3,20	针数：	48
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.5
差分输出：	YES	驱动器位数：	8
输入特性：	DIFFERENTIAL	接口集成电路类型：	LINE TRANSCEIVER
接口标准：	EIA-644-A; TIA-644-A	JESD-30 代码：	R-PDSO-G48
长度：	12.5 mm	功能数量：	8
端子数量：	48	最高工作温度：	85 °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：	TSSOP48,.3,20
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：	3.3 V	认证状态：	Not Qualified
最大接收延迟：	1.75 ns	接收器位数：	8
座面最大高度：	1.2 mm	子类别：	Line Driver or Receivers
最大供电电压：	3.6 V	最小供电电压：	3 V
标称供电电压：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	DUAL
最大传输延迟：	1.75 ns	宽度：	6.1 mm
Base Number Matches：	1

FIN1108 数据手册

Applications

Signal Optimization via Internal Termination

For LVDS signaling in point-to-point applications, receivers

or repeaters with on-chip termination are preferable to

reduce the overshoot or undershoot due to the reflection

caused by stubs at receiver inputs. As a rule of thumb, usu-

ally the termination resistor for an LVDS receiver should be

placed as close as possible to the receiver, especially for

high speed applications. If the distance between termina-

tion resistors and receivers is too long, the interconnection

will be seen as an un-terminated stub which can produce

reflections resulting in higher EMI. Internal termination can

effectively smooth out this ringing which can otherwise

jeopardize the receiver noise margin. This is important for

reliable high-speed operation with tighter required signal

settling times. Below is a list of the advantages/disadvan-

tages of internal termination.

Internal termination is not suitable for all applications. In

order to set a proper V_ODat the driver outputs, receivers

with on-chip termination resistors only work for point-to-

point applications since multi-drop applications would

require termination resistor for each receiver, reducing the

equivalent termination to R_T/n. This would reduce the driver

output swing by n.

Advantages:

Disadvantages:

1. Reduced device count resulting in reduced board space

and production cost.

1. Without special process treatment, on-chip termination can

experience greater temperature variation. This is usually

tolerable for low speed applications that have a sufficient

unit interval.

2. Reduced reflections caused by the stub length on the

receiver inputs, improving the signal integrity.

2. For applications with high common-mode noise, a center

tapped capacitor at the receiver side is desirable to filter

out the common-mode voltage noise of the input LVDS sig-

nal. This scheme works for an external termination scheme

with two (50Ω each for nominal 100Ω termination resistor)

half-value termination resistors connected in series and

center tapped to a capacitor to Ground. To implement this

scheme using internal termination resistors, a center tap

pin would have to be used. This would increase the pack-

age size of the part.

www.fairchildsemi.com

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FIN1108_10	FAIRCHILD	LVDS 8-Port, High-Speed Repeater	获取价格
FIN1108MTD	FAIRCHILD	LVDS 8 Port High Speed Repeater	获取价格
FIN1108MTD	ONSEMI	LVDS 8 端口高速中继器	获取价格
FIN1108MTDX	FAIRCHILD	LVDS 8 Port High Speed Repeater, 48 LD,TSSOP,JEDEC MO-153, 6.1MM WIDE, 1000/TAPE REEL	获取价格
FIN1108MTDX	ONSEMI	LVDS 8 端口高速中继器	获取价格
FIN1108TMTD	FAIRCHILD	LVDS 8 Port High Speed Repeater	获取价格

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