EDGE728
EDGE728 is Very High Speed Dual and Quad Channel ECL Delay Lines manufactured by SEMTECH.
scription e e h The Edge728 is a quad delay and deskew element. S a Manufactured in a high performance bipolar process, it is designed primarily at for channel deskew applications in Memory Test .DEquipment. w The w part offers a full scale delay range of ≥ 8.0 ns with independent ± 750 ps adjustment of the falling edge. w
The Edge728 has a drive mode, where one input signal is routed to all of the outputs. This mode is particularly useful in a fanout application. The delay value (and resolution) is controlled via an external voltage DAC. This deskew element is designed specifically to be monotonic and stable while delaying a very narrow pulse over a wide delay range. The Edge728 is a pin and functionally patible upgrade to the Edge628 with the following differences:
- greater net usable delay range
- greater net usable falling edge adjustment range
- only one external bias resistor required
- only one external pensation capacitor required
Edge728 Very High-Speed Dual- and Quad-Channel ECL Delay Lines
Features
- Pin and Functionally patible with the Edge 628 and Edge624 in Modes 0 and 2
- Independent Delay Adjustments for Positive and Negative Transitions
- Fanout Mode for One Input Distributed to All Channels
- 44-pin MQFP Package with Internal Heat Spreader, 44-pin PLCC with Internal Heat Spreader, or Die Form
Functional Block Diagram
Applications
- -
Automatic Test Equipment
Memory Tester Drive On Channel Deskew w w
.D w t a
S a e h t e
U 4
IN1 IN1-
.c m o
S1
DRVMODE
OUT1 OUT1- VDELAY1 VWIDTH1
IN2 IN2-
OUT2 OUT2- VDELAY2 VWIDTH2
IN3 IN3-
OUT3 OUT3- VDELAY3 VWIDTH3
IN4 IN4-...
