ISL59448IAZ-T7

Video Amps And Modules Overview

The ISL59448IAZ-T7 is a triple-channel 2:1 multiplexing amplifier manufactured by Renesas Electronics Corporation. It features integrated buffers with a fixed gain of 2, providing high slew rate and excellent bandwidth for video switching applications. The device operates on dual ±5V supplies and includes a three-state output (HIZ) allowing multiple devices to be tied together. A power-down mode reduces consumption to 14mW when the ENABLE pin is pulled high. An additional latch enable function allows independent logic control using a common logic bus.

Video Amps And Modules Feature Summary

• Triple channel 2:1 multiplexer with integrated buffers featuring a fixed gain of 2
• High speed three-state outputs (HIZ) enabling parallel connection of multiple devices
• Power-down mode accessible via the ENABLE pin to minimize power consumption
• Latch enable function preserving the last S0 state during HIZ or ENABLE cycling

Video Amps And Modules Applications

• HDTV/DTV analog inputs
• Video projectors
• Computer monitors
• Set-top boxes
• Security video
• Broadcast video equipment

Video Amps And Modules Procurement Notes

Verify datasheet revision FN6160 Rev 2.00 for accurate specifications. Confirm package type is 24 Ld QSOP. Check RoHS compliance status as products employ special Pb-free material sets. Ensure supply turn-on slew rate does not exceed 1V/µs to prevent damage from hot plugging. Verify logic voltage compatibility with TTL/CMOS standards.

Video Amps And Modules Selection Notes

Select this component for applications requiring high bandwidth and fast switching speeds in video signal routing. Consider the fixed gain of 2 and buffered high impedance inputs for signal integrity. Evaluate thermal dissipation requirements based on ambient temperature and PCB layout. Ensure proper decoupling capacitors are placed close to the device to maintain AC performance.

Video Amps And Modules Part Context

The ISL59448 belongs to the ISL59448 series of video multiplexers designed by Intersil, now part of Renesas Electronics. It is specifically engineered to meet the demands of high-resolution video systems. The device integrates current feedback output amplifiers stable into capacitive loads, optimizing AC response for various video cable-driving scenarios.

Video Amps And Modules Replacement Considerations

The datasheet explicitly states 'NOT RECOMMENDED FOR NEW DESIGNS' and 'NO RECOMMENDED REPLACEMENT'. Contact Technical Support Center for potential alternatives.

Video Amps And Modules FAQ

How is the power-down mode activated?

The power-down mode is activated by pulling the ENABLE pin high. In this state, the device consumes approximately 14mW, and all logic states are preserved.

What is the function of the LE pin?

The LE (Latch Enable) pin latches the last S0 logic state when driven high. This state is preserved even when cycling through HIZ or ENABLE functions.

Can multiple ISL59448 outputs be connected together?

Yes, the device features high impedance three-state outputs (HIZ), which allow the outputs of multiple devices to be tied together for shared video lines.