DDU18 DATADELAY | Alldatasheet

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8-TAP, ECL-INTERFACED FIXED DELAY LINE (SERIES DDU18) data delay devices, inc.

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Eight equally spaced outputs Fits in 400 mil 24-pin DIP socket Input & outputs fully 100K-ECL interfaced & buffered DDU18-xxC4 SMD DDU18-xxMC4 Mil SMD DDU18-xx DIP DDU18-xxM Military DIP FUNCTIONAL DESCRIPTION The DDU18-series device is a 8-tap digitally buffered delay line. The signal input (IN) is reproduced at the outputs (T1-T8), shifted in time by an amount determined by the device dash number (See Table). For dash numbers less than 16, the total delay of the line is measured from T1 to T8. The nominal tap-to-tap delay increment is given by one-seventh of the total delay, and the inherent delay from IN to T1 is nominally 2.0ns. For dash numbers greater than or equal to 16, the total delay of the line is measured from IN to T8. The nominal tap-to-tap delay increment is given by one-eighth of this number. PIN DESCRIPTIONS IN Signal Input T1-T8 Tap Outputs VEE -5 Volts GND Ground DASH NUMBER SPECIFICATIONS Part Number Total Delay (ns) Delay Per Tap (ns) DDU18-4 3.5 ± 1.0 * 0.5 ± 0.3 DDU18-8 7.0 ± 1.0 * 1.0 ± 0.4 DDU18-12 10.5 ± 1.0 * 1.5 ± 0.4 DDU18-16 16 ± 1.0 2.0 ± 0.5 DDU18-20 20 ± 1.0 2.5 ± 1.0 DDU18-24 24 ± 1.2 3.0 ± 1.5 DDU18-32 32 ± 1.6 4.0 ± 2.0 DDU18-40 40 ± 2.0 5.0 ± 2.0 DDU18-48 48 ± 2.4 6.0 ± 2.0 DDU18-56 56 ± 2.8 7.0 ± 2.0 DDU18-64 64 ± 3.2 8.0 ± 2.0 DDU18-72 72 ± 3.6 9.0 ± 2.0 DDU18-80 80 ± 4.0 10.0 ± 2.5 DDU18-100 100 ± 5.0 12.5 ± 2.5 DDU18-120 120 ± 6.0 15.0 ± 3.0 DDU18-160 160 ± 8.0 20.0 ± 4.0 DDU18-200 200 ± 10.0 25.0 ± 5.0 * Total delay is referenced to first tap output Input to first tap = 2.0ns ± 1ns NOTE: Any dash number between 4 and 200 not shown is also available. SERIES SPECIFICATIONS Minimum input pulse width: 40% of total delay Output rise time: 2ns typical Supply voltage: -5VDC ± 5% Power dissipation: 500mw typical (no load) Operating temperature: 0° to 85° C Temp. coefficient of total delay: 100 PPM/°C VCC GND IN Functional diagram for dash numbers < 16 2.0ns VCC GND IN Functional diagram for dash numbers >= 16 2004 Data Delay Devices Doc #97041 DATA DELAY DEVICES, INC. 5/5/04 3 Mt. Prospect Ave. Clifton, NJ 07013

The DDU18 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 as 40% of the total delay and periods as small as 80% 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. POWER SUPPLY BYPASSING The DDU18 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. DEVICE SPECIFICATIONS TABLE 1: ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL MIN MAX UNITS NOTES DC Supply Voltage VEE -7.0 0.3 V Input Pin Voltage VIN VEE - 0.3 0.3 V Storage Temperature TSTRG -55 150 C Lead Temperature TLEAD 300 C 10 sec TABLE 2: DC ELECTRICAL CHARACTERISTICS (0C to 85C) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES High Level Output Voltage VOH -1.025 -0.880 V VIH = MAX,50Ω to -2V Low Level Output Voltage VOL -1.810 -1.620 V VIL = MIN, 50Ω to -2V High Level Input Voltage VIH -1.165 -0.880 V Low Level Input Voltage VIL -1.810 -1.475 V High Level Input Current IIH 340 µA VIH = MAX Low Level Input Current IIL 0.5 µA VIL = MIN Doc #97041 DATA DELAY DEVICES, INC. 5/5/04 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com

DDU18-xx (Commercial DIP) DDU18-xxM (Military DIP) .130 ±.030 1.300 MAX. .300 MAX. .018 TYP. .530 MAX. .400 TYP. .012 TYP. 1.100 TYP. .015 TYP. .100 TYP. DDU18-xxC4 (Commercial SMD) DDU18-xxMC4 (Military SMD) 1.280±.020 .882 ±.005 .020 TYP. .040 TYP. .100 .090 1.100 .280 MAX. .590 MAX. .010±.002 .050 ±.010 .710 ±.005 .007 ±.005 Doc #97041 DATA DELAY DEVICES, INC. 5/5/04 3 Mt. Prospect Ave. Clifton, NJ 07013

DELAY LINE AUTOMATED TESTING TEST CONDITIONS INPUT: OUTPUT: Ambient Temperature: 25oC ± 3oC Load: 50Ω to -2V Supply Voltage (Vcc): -5.0V ± 0.1V Cload: 5pf ± 10% Input Pulse: Standard 10KH ECL Threshold: (VOH + VOL) / 2 levels (Rising & Falling) Source Impedance: 50Ω Max. Rise/Fall Time: 2.0 ns Max. (measured between 20% and 80%) Pulse Width: PWIN = 1.5 x Total Delay Period: PERIN = 10 x Total Delay NOTE: The above conditions are for test only and do not in any way restrict the operation of the device. OUT TRIG IN REF TRIG Test Setup DEVICE UNDER TEST (DUT) OSCILLOSCOPE PULSE GENERATOR IN Timing Diagram For Testing DRISE DFALL PERIN PWIN TRISE TFALL 20% 20% 50% 50% 80% 80% 50% 50% VIH VIL VOH VOL INPUT SIGNAL OUTPUT SIGNAL Doc #97041 DATA DELAY DEVICES, INC. 5/5/04 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com