3.3V adjustable delay offers 250ps to 2ns step sizes
( 01 Nov 2003 )
Dallas Semiconductor has introduced the DS1123L 3.3V adjustable delay line.
The DS1123L is an 8-bit programmable timing element similar in function to the other devices in the programmable timing-element family, but operates at 3.3V. Like the DS1023, this device can delay signals up to a full period or more when used as a delay line. An on-chip reference delay can offset the inherent step-zero delay, which allows the DS1123L to shift a clock signal over the full 0 to 360ˇ phase range.
In addition to functioning as a delay line, it can be configured as a free-running oscillator or an externally triggered monostable vibrator.
The DS1123L comes in a 16-pin TSSOP package and is available in step sizes ranging from 250ps to 2ns. $5.25 (1000).
