E142AHF

Description

The Edge142 is a 4 X 2 cross point switch with output edge deskew capability. Manufactured in a high performance bipolar process, it is designed primarily for channel deskew applications in VLSI and Mixed-Signal test equipment.
Any of the four input signals may be selected as the source for either output. The 142 performs test head multiplexing, adjacent channel multiplexing, and signal buffering for both the drive and receive signals, in addition to timing deskew.
The delay value (and resolution) is controlled via an external voltage DAC. The delay element is designed specifically to be monotonic and very stable while delaying a very narrow pulse over a limited delay range.
The part offers separate delays for rising vs. falling edges.
The rising edge delay range is 1.5 ns and the falling edge adjustment range is 300 ps.
The Edge142 is also well suited for 1:2 or 1:4 signal fanout applications that require:
- multiple signal sources
- output enable / disable
- timing deskew on the output signals.

Features

• Very Narrow (<1 ns) Pulse Width Capability
• Fmax > 850 MHz
• Independent Delay Adjustments for Positive and Negative Transitions
• Delay Range of 1.5 ns
• Trailing Edge Adjust Range of 300 ps
• Small Footprint: 52-pin MQFP Package
(10 X 10 mm) with Internal Heat Spreader or Die Form

Applications
• Automatic Test Equipment
– Per pin deskew in VLSI, Mixed-Signal, and Memory Testers
– Clock Distribution with timing adjustment