Datasheet > ISL54103IHZ-T7A

ISL54103IHZ-T7A

更新时间： 2024-09-08 12:04:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		复用器商用集成电路光电二极管
页数	文件大小	规格书
8页	267K
描述
More Reliable HDCP Performance In Video Multiplexers and Cable Extenders

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数据手册
替代型号

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ISL54103IHZ-T7A 数据手册

ISL54103

Data Sheet

October 14, 2011

FN6303.2

DDC Accelerator (DDCA)

Features

The ISL54103 DDC Accelerator (DDCA) is a dual active pull-up

bus terminator designed to improve data transmission speed

on the DDC 2-wire serial bus interfaces.

• Active Termination for DDC Lines

• Enhances System Bus Signal Rise Time

• More Reliable HDCP Performance In Video Multiplexers

and Cable Extenders

The DDCA detects rising input transitions with two internal

voltage references and two comparators per channel. After

the voltage on a data line crosses the first threshold

• Increases Maximum Cable Length While Guaranteeing

Data Integrity

), the boost pull-up current source is activated to

TRIPL

speed transition. After the voltage crosses the second

threshold (V ), the boost pull-up current source is

• 2.2mA Current Boost on Low to High Transitions

• 8kV ESD Protection on SDA and SCL Pins

• Wide Operating Voltage Range: 2.7V to 5.5V

• Small Package - 5 Ld SOT-23

TRIPH

de-activated, leaving an active pull-up current of 275µA on

the line. When both channels are HIGH, the pull-up current

for both lines is reduced to 100µA to save power. Internal

logic ensures that the active and boost pull-up current

sources are not activated during downward transitions.

• Pb-free (RoHS Compliant)

The level for V

TRIPH

is controlled by a bandgap voltage

Target Applications

• Video Multiplexers

referred to V . This feature makes the switching behavior

invariant for all power supply voltages between 2.7V and 5.5V.

• Video Cable Extenders

• Video Distribution Amplifiers

• Televisions

A noise filter on each channel prevents the circuit from

responding to input transitions that do not exceed a

voltage-time threshold. To activate the boost circuit, the input

must exceed V

TRIPL

by 100Vns (typical) (See Figure 10).

• Computer Monitors

• Projectors

The DDCA permits operation of the bus at frequencies up to

100kHz, despite the capacitive loads of multiple devices

and/or long PC board traces. Enhanced ESD protection on

the accelerator pins are guaranteed to withstand 8kV ESD

(HBM) events.

Pinout

ISL54103

(5 LD SOT-23)

TOP VIEW

The DDC Accelerator provides an essential function in DDC

applications because of distributed capacitance of the DDC

wires in long video cables. By incorporating DDCA, systems

using DDC can reliably increase their bus load, allowing

longer cables, without the risk of data corruption.

DDC1

DDC2

GND

N.C.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7 8

中文翻译

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ISL54103IHZ-T7A 替代型号

型号	品牌	替代类型	描述	数据表
ISL54103IHZ-T7	INTERSIL	功能相似	DDC Accelerator (DDCA)

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