Ten equally spaced outputs Fits in 300 mil 32-pin DIP socket Input & outputs fully 10KH-ECL interfaced & buffered
The DDU12H-series device a 10-tap digitally buffered delay line. The IN Signal Input signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by T1-T10 Tap Outputs an amount determined by the device dash number (See Table). For dash VEE -5 Volts numbers less than 20, the total delay of the line is measured from T1 to GND Ground T10. The nominal tap-to-tap delay increment is given by one-ninth of the total delay, and the inherent delay from T1 is nominally 1.5ns. For dash numbers greater than or equal to 20, the total delay of the line is measured from to T10. The nominal tap-to-tap delay increment is given by one-tenth of this number.
Minimum input pulse width: 10% of total delay Output rise time: 2ns typical Supply voltage: � 5% Power dissipation: 400mw typical (no load) Operating temperature: 85� C Temp. coefficient of total delay: 100 PPM/�C
* Total delay is referenced to first tap output Input to first tap � 1ns NOTE: Any dash number between 10 and 1500 not shown is also available.
The DDU12H tolerances are guaranteed for input pulse widths and periods greater than those specified in the test conditions. Although the device will function properly for pulse widths as small 10% of the total delay and periods as small 20% of the total delay (for a symmetric input), the delays may deviate from their values at low frequency. However, for a given input condition, the deviation will be repeatable from pulse to pulse. Contact technical support at Data Delay Devices if your application requires device testing at a specific input condition.
The DDU12H relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VEE to GND, located as close as possible to the VEE pin, is recommended. A wide VEE trace and a clean ground plane should be used.
PARAMETER DC Supply Voltage Input Pin Voltage Storage Temperature Lead Temperature SYMBOL VEE VIN TSTRG TLEAD MIN -7.0 VEE 0.3 -55 MAX UNITS NOTES
to 75C) PARAMETER High Level Output Voltage Low Level Output Voltage High Level Input Voltage Low Level Input Voltage High Level Input Current Low Level Input Current SYMBOL VOH VOL VIH VIL IIH IIL MIN TYP MAX -1.600 -1.070 UNITS �A NOTES VIH to -2V VIL = MIN, to -2V