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| DDU7F 10-TAP, TTL-INTERFACED FIXED DELAY LINE (SERIES DDU7F) FEATURES * * * * * * Ten equally spaced outputs Fits standard 14-pin DIP socket Low profile Auto-insertable Input & outputs fully TTL interfaced & buffered 10 T2L fan-out capability IN N/C T2 T4 T6 T8 GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 data 3 (R) delay devices, inc. PACKAGES VCC T1 T3 T5 T7 T9 T10 IN T2 T4 T6 T8 T10 N/C GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC T1 T3 T5 T7 T9 N/C N/C DDU7F-xx DDU7F-xxA2 DDU7F-xxB2 DDU7F-xxM DIP Gull-Wing J-Lead Military DIP Military SMD DDU7F-xxMC3 FUNCTIONAL DESCRIPTION PIN DESCRIPTIONS The DDU7F-series device is 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 an T1-T10 Tap Outputs amount determined by the device dash number. The nominal tap-to-tap VCC +5 Volts delay increment is given by 1/10 of the dash number. For dash numbers GND Ground less than 50, the total delay of the line is measured from T1 to T10, with the nominal value given by 9 times the increment. The inherent delay from IN to T1 is nominally 3.5ns. For dash numbers greater than or equal to 50, the total delay of the line is measured from IN to T10, with the nominal value given by the dash number. SERIES SPECIFICATIONS * * * * * * Minimum input pulse width: 20% of total delay Output rise time: 2ns typical Supply voltage: 5VDC 5% Supply current: ICCL = 50ma typical ICCH = 15ma typical Operating temperature: 0 to 70 C Temp. coefficient of total delay: 100 PPM/C 3.5ns 10% 10% 10% 10% 10% 10% 10% 10% 10% DASH NUMBER SPEC.'S Part Number DDU7F-10 DDU7F-20 DDU7F-25 DDU7F-50 DDU7F-100 DDU7F-150 DDU7F-200 DDU7F-250 DDU7F-300 DDU7F-400 DDU7F-500 Total Delay (ns) 9 2.0 * 18 2.0 * 22.5 2.0 * 50 2.5 100 5.0 150 7.5 200 10.0 250 12.5 300 15.0 400 20.0 500 25.0 Delay Per Tap (ns) 1.0 0.5 2.0 1.0 2.5 1.0 5.0 2.0 10.0 3.0 15.0 3.0 20.0 3.0 25.0 3.0 30.0 3.0 40.0 4.0 50.0 5.0 VCC IN T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 GND * Total delay is referenced to first tap Input to first tap = 3.5ns 1ns NOTE: Any dash number between 10 and 500 not shown is also available. Functional diagram for dash numbers < 50 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% VCC IN T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 GND Functional diagram for dash numbers >= 50 (c)1997 Data Delay Devices Doc #97016 1/29/97 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 1 DDU7F APPLICATION NOTES HIGH FREQUENCY RESPONSE The DDU7F 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 DDU7F 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 DC Supply Voltage Input Pin Voltage Storage Temperature Lead Temperature SYMBOL VCC VIN TSTRG TLEAD MIN -0.3 -0.3 -55 MAX 7.0 VCC+0.3 150 300 UNITS V V C C NOTES 10 sec TABLE 2: DC ELECTRICAL CHARACTERISTICS (0C to 70C, 4.75V to 5.25V) PARAMETER High Level Output Voltage Low Level Output Voltage High Level Output Current Low Level Output Current High Level Input Voltage Low Level Input Voltage Input Clamp Voltage Input Current at Maximum Input Voltage High Level Input Current Low Level Input Current Short-circuit Output Current Output High Fan-out Output Low Fan-out SYMBOL VOH VOL IOH IOL VIH VIL VIK IIHH IIH IIL IOS MIN 2.5 TYP 3.4 0.35 MAX UNITS V V mA mA V V V mA A mA mA Unit Load NOTES VCC = MIN, IOH = MAX VIH = MIN, VIL = MAX VCC = MIN, IOL = MAX VIH = MIN, VIL = MAX 0.5 -1.0 20.0 2.0 0.8 -1.2 0.1 20 -0.6 -150 25 12.5 VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX -60 Doc #97016 1/29/97 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 2 DDU7F PACKAGE DIMENSIONS 14 13 12 11 10 9 8 Lead Material: Nickel-Iron alloy 42 TIN PLATE 14 13 12 11 10 1 2 3 4 5 6 7 9 8 .440 MAX. .280 MAX. .290 MAX. 1 2 3 4 5 6 7 .780 MAX. .830 MAX. .015 TYP. .010.002 .018 TYP. .070 MAX. .600.010 6 Equal spaces each .100.010 Non-Accumulative .350 MAX. .600 TYP. .030 .290 .005 MAX. .195 .010 .020 TYP. .010 TYP. .300 TYP. DDU7F-xx (Commercial DIP) DDU7F-xxM (Military DIP) .020 TYP. 14 13 12 11 10 9 8 .040 TYP. .270 TYP. .010 TYP. .020 TYP. 14 13 12 11 10 9 8 .040 TYP. .270 TYP. .050 TYP. .320 TYP. .430 TYP. 1 2 3 4 5 6 7 1 2 3 4 5 6 7 .090 .100 .600 .790 MAX. .300 MAX. .050 TYP. .110 .100 .600 .790 MAX. .350 MAX. .110 TYP. DDU7F-xxA2 (Commercial Gull-Wing) DDU7F-xxB2 (Commercial J-Lead) .020 TYP. 16 15 14 13 12 11 10 9 .040 TYP. .010.002 .710 .590 .005 MAX. .882 .005 .007 .005 1 2 3 4 5 6 7 8 .090 .700 .880.020 .100 .280 MAX. .050 .010 DDU7F-xxMC3 (Military Gull-Wing) Doc #97016 1/29/97 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 3 DDU7F DELAY LINE AUTOMATED TESTING TEST CONDITIONS INPUT: Ambient Temperature: 25oC 3oC Supply Voltage (Vcc): 5.0V 0.1V Input Pulse: High = 3.0V 0.1V Low = 0.0V 0.1V Source Impedance: 50 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 OUTPUT: Load: Cload: Threshold: 1 FAST-TTL Gate 5pf 10% 1.5V (Rising & Falling) NOTE: The above conditions are for test only and do not in any way restrict the operation of the device. COMPUTER SYSTEM PRINTER T1 PULSE GENERATOR OUT TRIG DEVICE UNDER TEST (DUT) IN T2 T3 T4 T5 T6 T7 T8 T9 T10 REF IN TRIG TIME INTERVAL COUNTER Test Setup PERIN PWIN TRISE INPUT SIGNAL 2.4V 1.5V 0.6V TFALL VIH 2.4V 1.5V 0.6V VIL TFALL TRISE OUTPUT SIGNAL VOH 1.5V 1.5V VOL Timing Diagram For Testing Doc #97016 1/29/97 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 4 |
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