Datasheet > SK4435T

SK4435T

更新时间： 2024-09-17 19:12:59

品牌	Logo	应用领域
商升特 - SEMTECH		驱动接口集成电路驱动器
页数	文件大小	规格书
4页	77K
描述
Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, TQFP-32

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技术参数
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SK4435T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	TFQFP, TQFP32,.28SQ	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
差分输出：	YES	驱动器位数：	4
输入特性：	DIFFERENTIAL	接口集成电路类型：	LINE TRANSCEIVER
接口标准：	GENERAL PURPOSE	JESD-30 代码：	S-PQFP-G32
JESD-609代码：	e3	长度：	5 mm
标称负供电电压：	-3.3 V	功能数量：	4
端子数量：	32	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	TFQFP	封装等效代码：	TQFP32,.28SQ
封装形状：	SQUARE	封装形式：	FLATPACK, THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	-3.3,3.3 V
认证状态：	Not Qualified	最大接收延迟：	0.55 ns
接收器位数：	4	座面最大高度：	1.2 mm
子类别：	Other Interface ICs	最大供电电压：	3.6 V
最小供电电压：	2 V	表面贴装：	YES
技术：	ECL	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	最大传输延迟：	0.55 ns
宽度：	5 mm	Base Number Matches：	1

SK4435T 数据手册

AN1004

Interfacing Between LVDS and ECL /

LVECL / PECL / LVPECL

HIGH-PERFORMANCE PRODUCTS

Interfacing LVDS with PECL and LVPECL

About LVDS

Signal level translation between PECL / LVPECL to

LVDS can be achieved using resistor divider network;

however, when using discrete logic the signal volt-

age level would shift with respect to supply voltage

and ambient temperature fluctuation. In turn, this

will diminish the signal integrity and cause duty cycle

distortion. To avoid such problems, Semtech has

designed a fully integrated IC devices that translate

PECL / LVPECL signal into LVDS and LVDS to PECL /

LVPECL type signals. Refer to table 1 for a list of

these devices. Semtech also offers a fully integrated

receiver / driver device with true LVDS inputs and

outputs (SK1303) in an 8-lead SOIC and MSOP pack-

ages.

As the bandwidth increases in Telecom / Datacom

and even in consumer / commercial applications ,

the high speed, low power, noise, and cost of LVDS

signal broaden the scope of its application beyond

the traditional technologies such as ECL / PECL.

LVDS (Low Voltage Differential Signaling) are differ-

ential signals with typical 350 mV swing and a DC

offset of 1.2V. When moving signals from box-to-

box or board-to-board (i.e. flat panel display). LVDS

is the right solution because it generates less noise,

consumes less power and it is very cost effective.

Figure 1 shows different voltage levels for different

types of signals.

LVDS signals can easily be terminated with a 100 W

resistor across the differential LVDS outputs. Most

devices with LVDS I / O provide the 100W resistor

internally at its inputs to minimize component count

(i.e. SK1301). Figure 2 is an example of LVDS out-

put termination. For PECL / LVPECL output termina-

tion refer to application note AN1003.

PECL

LVPECL

LVDS

HSTL

ECL /LVECL

Figure 1: Relative differences among various I/O standards

100 Ω

LVDS

Note:

HSTL (High-Speed Transceiver Logic) signals are used in computing de-

sign applications such as memory drivers and high-speed CPU-to-Memory

interfacing.

VEE

SK1301

Figure 2: LVDS Termination

Revision 1/December 20, 2001

www.semtech.com

12 3 4

中文翻译

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与SK4435T相关器件

型号	品牌	获取价格	描述	数据表
SK4436	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, TQFP-32
SK4436ATF	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK4436ATFT	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK4436T	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, TQFP-32
SK4439ATF	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK4439ATFT	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK4440ATF	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK4440ATFT	SEMTECH	获取价格	Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, ECL, PQFP32, 5 X 5 MM, TQFP-32
SK44679-0105	AMPHENOL	获取价格	Board Connector, 64 Contact(s), 2 Row(s), Female
SK44679-0110	AMPHENOL	获取价格	Board Connector, 64 Contact(s), 2 Row(s), Female

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