ISL54103

DDC 加速器 (DDCA); · Active Termination for DDC Lines \n· Enhances System Bus Signal Rise Time \n· More Reliable HDCP Performance In Video Multiplexers and Cable Extenders \n· Increases Maximum Cable Length While Guaranteeing Data Integrity \n· 2.2mA Current Boost on Low to High Transitions \n· 8kV ESD Protection on SDA and SCL Pins \n· Wide Operating Voltage Range: 2.7V to 5.5V \n· Small Package - 5 Ld SOT-23 \n· Pb-free (RoHS Compliant)\n;

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.\nThe 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 (VTRIPL), the boost pull-up current source is activated to speed transition. After the voltage crosses the second threshold (VTRIPH), the boost pull-up current source is 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.\nThe level for VTRIPH is controlled by a bandgap voltage referred to VDD. This feature makes the switching behavior invariant for all power supply voltages between 2.7V and 5.5V.\nA 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 VTRIPL by 100Vns (typical) (See Figure 10).\nThe 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.\nThe 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.

ISL54103

DDC Accelerator (DDCA)

ISL54103

More Reliable HDCP Performance In Video Multiplexers and Cable Extenders

ISL54103

DDC Accelerator (DDCA)

ISL54103IHZ-T7

DDC Accelerator (DDCA)

ISL54103IHZ-T7

More Reliable HDCP Performance In Video Multiplexers and Cable Extenders

ISL54103IHZ-T7

丝印：103Z；Package：5LdSOT-23；DDC Accelerator (DDCA)

ISL54103IHZ-T7A

More Reliable HDCP Performance In Video Multiplexers and Cable Extenders

ISL54103IHZ-T7A

丝印：103Z；Package：5LdSOT-23；DDC Accelerator (DDCA)

ISL54103IHZ-T7

Package：SC-74A，SOT-753；包装：卷带（TR） 类别：集成电路（IC） 信号端接器 描述：IC ACCELERATOR DDCA DUAL SOT23-5

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