DDU37F DATADELAY | Alldatasheet

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Doc #01016 DATA DELAY DEVICES, INC. 11/12/01 3 Mt. Prospect Ave. Clifton, NJ 07013 MECHANICALLY VARIABLE TTL DELAY LINE (SERIES DDU37F)

FEATURES

Ideal for “Set and Forget” applications Multi-turn adjustment screw (approx. 40 turns) Input & output fully TTL interfaced & buffered (10 T2L fan-out capability) Resolution: As low as 0.12ns Minimum delay (TD0): 6ns typical Output rise time: 2ns typical Min. input pulse width: 20% of maximum delay Power dissipation: 230mW maximum Operating temperature: 0° to 70°C (Commercial) -55° to 125°C (Military) Temperature coefficient:

100 PPM/°C

The DDU37F-series device is a mechanically variable, FAST-TTL interfaced delay line. The signal input (IN) is reproduced at the tap output (OUT), shifted by an amount which can be adjusted between TD0 and TD0+ TDVAR, where TDVAR is given by the device dash number (See Table). The device operates from a single 5V supply and is TTL interfaced, capable of driving up to 10 TTL loads. SERIES SPECIFICATIONS Functional Diagram GND IN OUT .565 MAX 1.750 .285 .020 Package Dimensions .187 .125 .200 MIN .430 .100 IN GND NC OUT VCC 1.640 .100 .200 .100 .060 .060 data delay devices, inc. DDU37F GND IN OUT NC VCC DDU37F-xx (Commercial) DDU37F-xxM (Military) xx = Dash number PIN DESCRIPTIONS IN Signal Input OUT Fixed Output VCC +5V GND Ground NC No connection DASH NUMBER SPECIFICATIONS Part Number TDVAR (ns) DDU37F-25 DDU37F-30 DDU37F-40 DDU37F-50 DDU37F-60 DDU37F-70 DDU37F-80 DDU37F-100 DDU37F-120 100 DDU37F-150 130 DDU37F-200 180 Note: Other delay times available on request 2001 Data Delay Devices

Doc #01016 DATA DELAY DEVICES, INC. 11/12/01 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com APPLICATION NOTES HIGH FREQUENCY RESPONSE The DDU37F 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 20% of the total delay and periods as small as 40% 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 DDU37F relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VCC to GND, located as close as possible to the VCC pin, is recommended. A wide VCC 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 VCC -0.3 7.0 V Input Pin Voltage VIN -0.3 VDD+0.3 V Storage Temperature TSTRG -55 150 C Lead Temperature TLEAD 300 C 10 sec TABLE 2: DC ELECTRICAL CHARACTERISTICS (0C to 70C, 4.75V to 5.25V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES High Level Output Voltage VOH 2.5 3.4 V VCC = MIN, IOH = MAX VIH = MIN, VIL = MAX Low Level Output Voltage VOL 0.35 0.5 V VCC = MIN, IOL = MAX VIH = MIN, VIL = MAX High Level Output Current IOH -1.0 mA Low Level Output Current IOL 20.0 mA High Level Input Voltage VIH 2.0 V Low Level Input Voltage VIL 0.8 V Input Clamp Voltage VIK -1.2 V VCC = MIN, II = IIK Input Current at Maximum Input Voltage IIHH 0.1 mA VCC = MAX, VI = 7.0V High Level Input Current IIH µA VCC = MAX, VI = 2.7V Low Level Input Current IIL -0.6 mA VCC = MAX, VI = 0.5V Short-circuit Output Current IOS -60 -150 mA VCC = MAX Output High Fan-out Unit Output Low Fan-out 12.5 Load

Doc #01016 DATA DELAY DEVICES, INC. 11/12/01 3 Mt. Prospect Ave. Clifton, NJ 07013 DELAY LINE AUTOMATED TESTING TEST CONDITIONS INPUT: OUTPUT: Ambient Temperature: 25oC ± 3oC Load:

1 FAST-TTL Gate

Supply Voltage (Vcc): 5.0V ± 0.1V Cload: 5pf ± 10% Input Pulse: High = 3.0V ± 0.1V Threshold: 1.5V (Rising & Falling) Low = 0.0V ± 0.1V Source Impedance: 50Ω Max. Rise/Fall Time: 3.0 ns Max. (measured between 0.6V and 2.4V ) 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. IN OUT OUT TRIG IN TRIG Test Setup DEVICE UNDER TEST (DUT) OSCILLOSCOPE PULSE GENERATOR Timing Diagram For Testing DRISE DFALL PERIN PWIN TRISE TFALL 0.6 0.6 1.5 1.5 2.4 2.4 1.5 1.5 VIH VIL VOH VOL INPUT SIGNAL OUTPUT SIGNAL