__________ Applications Information

Supply and Temperature

Effects on Delay

Over the specified range, the MXD1013’s delays are

typically 2% accurate. Variations in supply voltage may

affect the MXD1013’s fixed output delays. Supply volt-

ages beyond the specified range may result with larger

variations. Although there might be a slight variance in

delays over temperature, the MXD1013 is internally

compensated to maintain its nominal values.

Loading Effect on Delay Lines

Capacitive loads increase delay times as they increase

the rise and fall times of the delay lines. Other logic

devices increase the capacitance at the output of the

delays, which can affect device performance.

Board Layout Considerations

Bypass the MXD1013 with a 0.1µF capacitor to mini-

mize the impact of high-speed switching on the power

supply. The power supply must be able to deliver the

required switching currents for proper operation.

It is advisable to minimize trace lengths in order to

reduce board capacitance as well as the traveling dis-

tance between devices. Sockets and wire-wrapped

boards increase capacitance and should be avoided.

3-in-1 Silicon Delay Line

_______________________________________________________________________________________

5

Figure 1. Timing Diagram

MXD1013

TD

74F04

50

Ω

50

Ω

50

Ω

74F04

74F04

PULSE

GENERATOR

TD

PULSE

GENERATOR

TD

PULSE

GENERATOR

EACH OUTPUT IS LOADED WITH THE EQUIVALENT OF ONE 74F04.

THE DELAY OF THE 74F04 IS SUBTRACTED FROM THE MEASURED DELAY.

TIME

INTERVAL

COUNTER

Figure 2. Test Circuit

PERIOD

IN

OUT

0.6V

0.6V

2.4V

2.4V

1.5V

1.5V

1.5V

1.5V

1.5V

___________________Chip Information

TRANSISTOR COUNT: 824