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| MDU28C DUAL, HCMOS-INTERFACED FIXED DELAY LINE (SERIES MDU28C) FEATURES * * * * * * Two independent delay lines Fits standard 8-pin DIP socket Low profile Auto-insertable Input & outputs fully CMOS interfaced & buffered 10 T2L fan-out capability I1 N/C I2 GND 1 2 3 4 8 7 6 5 data 3 (R) delay devices, inc. PACKAGES VDD O1 N/C O2 I1 N/C N/C N/C I2 N/C GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD N/C O1 N/C N/C N/C O2 MDU28C-xx MDU28C-xxA1 MDU28C-xxB1 MDU28C-xxM DIP Gull-Wing J-Lead Military DIP Military SMD MDU28C-xxMD1 MDU28C-xxMD4 FUNCTIONAL DESCRIPTION The MDU28C-series device is a 2-in-1 digitally buffered delay line. The signal inputs (I1-I2) are reproduced at the outputs (O1-O2), shifted in time by an amount determined by the device dash number (See Table). The delay lines function completely independently of each other. PIN DESCRIPTIONS I1-I2 O1-O2 VDD GND Signal Inputs Signal Outputs +5 Volts Ground SERIES SPECIFICATIONS * * * * * * Minimum input pulse width: 100% of total delay Output rise time: 8ns typical Supply voltage: 5VDC 5% Supply current: ICCL = 40a typical ICCH = 45ma typical Operating temperature: 0 to 70 C Temp. coefficient of total delay: 300 PPM/C DASH NUMBER SPECIFICATIONS Part Number MDU28C-10 MDU28C-12 MDU28C-16 MDU28C-20 MDU28C-25 MDU28C-30 MDU28C-35 MDU28C-40 MDU28C-45 MDU28C-50 MDU28C-60 MDU28C-75 MDU28C-100 Delay Per Line (ns) 10 2.0 12 2.0 16 2.0 20 2.0 25 2.0 30 2.0 35 2.0 40 2.0 45 2.2 50 2.5 60 3.0 75 3.7 100 5.0 O1 O2 100% 100% NOTE: Any dash number between 10 and 100 not shown is also available. VDD I1 I2 GND Functional block diagram (c)1997 Data Delay Devices Doc #97040 12/12/97 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 1 MDU28C APPLICATION NOTES HIGH FREQUENCY RESPONSE The MDU28C 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 100% of the total delay and periods as small as 200% 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 MDU28C relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VDD to GND, located as close as possible to the VDD pin, is recommended. A wide VDD 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 VDD VIN TSTRG TLEAD MIN -0.3 -0.3 -55 MAX 7.0 VDD+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 Current SYMBOL VOH VOL IOH IOL VIH VIL IIH MIN 3.98 TYP 4.4 0.15 MAX UNITS V V mA mA V V A NOTES VDD = 5.0, IOH = MAX VIH = MIN, VIL = MAX VDD = 5.0, IOL = MAX VIH = MIN, VIL = MAX 0.26 -4.0 4.0 3.15 1.35 0.10 VDD = 5.0 Doc #97040 12/12/97 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 2 MDU28C PACKAGE DIMENSIONS 8 7 6 5 Lead Material: Nickel-Iron alloy 42 TIN PLATE 8 1 2 3 4 7 6 5 .440 MAX. .280 MAX. .290 MAX. .020 .290 TYP. MAX. .010.002 .180 TYP. .300 TYP. .020 TYP. 1 2 3 4 .500 MAX. .500 MAX. .015 TYP. .018 TYP. .070 MAX. .300.010 3 Equal spaces each .100.010 Non-Accumulative .350 MAX. .010 TYP. .300 TYP. MDU28C-xx (Commercial DIP) MDU28C-xxM (Military DIP) .020 TYP. 8 7 6 5 .040 TYP. .270 TYP. 1 2 3 4 .010 TYP. .020 TYP. 8 7 6 5 .040 TYP. .270 TYP. 1 2 3 4 .050 TYP. .320 TYP. .430 TYP. .100 .300 .520 MAX. .110 .300 MAX. .050 TYP. .100 .300 .520 MAX. .110 .350 MAX. .110 TYP. MDU28C-xxA1 (Commercial Gull-Wing) MDU28C-xxB1 (Commercial J-Lead) .650 .100 1 14 .017 .510 MAX. .100 1 14 .017 .510 MAX. .300 TYP. 7 8 .300 TYP. 7 8 .100 .300 .200 MAX. (Com) .225 MAX. (Mil) .065 TYP. .360 TYP. .065 TYP. .510 MAX. .300 .050 .100 .080 .008 .200 MAX. (Com) .225 MAX. (Mil) .005 .510 MAX. .050 .080 .025 .008 .045 .360 TYP. .065 TYP. .065 TYP. MDU28C-xxD1 (Commercial SMD) MDU28C-xxMD1 (Military SMD) Doc #97040 12/12/97 MDU28C-xxD4 (Commercial SMD) MDU28C-xxMD4 (Military SMD) 3 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 MDU28C DELAY LINE AUTOMATED TESTING TEST CONDITIONS INPUT: Ambient Temperature: 25oC 3oC Supply Voltage (VDD): 5.0V 0.1V Input Pulse: High = 5.0V 0.1V Low = 0.0V 0.1V Source Impedance: 50 Max. Rise/Fall Time: 5.0 ns Max. (measured between 0.5V and 4.5V ) Pulse Width: PWIN = 1.5 x Total Delay Period: PERIN = 10 x Total Delay OUTPUT: Load: Cload: Threshold: 1 FAST-TTL Gate 5pf 10% 2.5V (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 REF PULSE GENERATOR OUT TRIG I2 I1 DEVICE UNDER TEST (DUT) O1 IN TRIG O2 TIME INTERVAL COUNTER Test Setup PERIN PWIN TRISE INPUT SIGNAL 4.5V 2.5V 0.5V TFALL VIH 4.5V 2.5V 0.5V VIL TFALL TRISE OUTPUT SIGNAL VOH 2.5V 2.5V VOL Timing Diagram For Testing Doc #97040 12/12/97 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 4 |
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