mdu1 2h doc #97038 data delay devices, inc. 1 12/12/97 3 mt. prospect ave. clifton, nj 07013 dual, ecl-interfaced fixed delay line (series mdu12h) features packages two independent delay lines fits standard 16-pin dip socket auto- insertable input & outputs fully 10kh-ecl interfaced & buffered functional description the mdu12h-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. series specifications minimum input pulse width: 50% of total delay output rise time: 2ns typical supply voltage: -5vdc 5% power dissipation: 200mw typical (no load) operating temperature: -30 to 85 c temp. coefficient of total delay: 100 ppm/ c 100% vcc gnd i1 i2 functional block diagram 100% o2 o1 1997 data delay devices data delay devices, inc. 3 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 gnd n/c n/c n/c i1 i2 n/c vee gnd o1 o2 n/c n/c n/c n/c n/c 16 15 14 1 5 6 8 gnd i1 i2 vee gnd o1 o2 mdu12h-xx dip mdu12h-xxm military dip mdu12h-xxc3 smd mdu12h-xxmc3 mil smd pin descriptions i1-i2 signal inputs o1-o2 signal outputs vee -5 volts gnd ground dash number specifications part number delay per line ( ns) mdu12h-3 3 1.0 mdu12h-4 4 1.0 mdu12h-5 5 1.0 mdu12h-10 10 1.0 mdu12h-15 15 1.0 mdu12h-20 20 1.0 mdu12h-25 25 2.0 mdu12h-30 30 2.0 mdu12h-35 35 2.0 mdu12h-40 40 2.0 mdu12h-45 45 2.2 mdu12h-50 50 2.5 mdu12h-60 60 3.0 mdu12h-75 75 3.7 mdu12h-100 100 5.0 mdu12h-125 125 6.2 mdu12h-150 150 7.5 mdu12h-200 200 10.0 mdu12h-250 250 12.5 * total delay is referenced to first tap output input to first tap = 1.5ns 1ns note: any dash number between 3 and 50 not shown is also available.
mdu12h doc #97038 data delay devices, inc. 2 12/12/97 tel: 97 3-773-2299 fax: 973-773-9672 http://www.datadelay.com application notes high frequency response the mdu12h 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 50% of the total delay and periods as small as 100% 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 mdu12h 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 v ee -7.0 0.3 v input pin voltage v in v ee - 0.3 0.3 v storage temperature t strg -55 150 c lead temperature t lead 300 c 10 sec table 2: dc electrical characteristics (0c to 75c) parameter symbol min typ max units notes high level output voltage v oh -1.020 -0.735 v v ih = max,50 w to -2v low level output voltage v ol -1.950 -1.600 v v il = min, 50 w to -2v high level input voltage v ih -1.070 v low level input voltage v il -1.480 v high level input current i ih 475 m a v ih = max low level input current i il 0.5 m a v il = min
mdu1 2h doc #97038 data delay devices, inc. 3 12/12/97 3 mt. prospect ave. clifton, nj 07013 package dimensions mdu12h-xx (commercial dip) mdu12h-xxm (military dip) .150 .030 .800 typ. 1 5 8 16 15 14 .320 max. .018 typ. .400 typ. .300 typ. .010 typ. .700 typ. .020 typ. .100 typ. 6 mdu12h-xxc3 (commercial smd) mdu12h-xxmc3 (military smd) .880 .020 .882 .005 .020 typ. .040 typ. .100 .090 .700 .280 max. .590 max. .010 .002 .050 .010 .710 .005 .007 .005 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
mdu12h doc #97038 data delay devices, inc. 4 12/12/97 tel: 97 3-773-2299 fax: 973-773-9672 http://www.datadelay.com delay line automated testing test conditions input: output: ambient temperature: 25 o c 3 o c load: 50 w to -2v supply voltage ( vcc): -5.0v 0.1v c load : 5pf 10% input pulse: standard 10kh ecl threshold: (v oh + v ol ) / 2 levels (rising & falling) source impedance: 50 w max. rise/fall time: 2.0 ns max. (measured between 20% and 80%) pulse width: pw in = 1.5 x total delay period: per in = 10 x total delay note: the above conditions are for test only and do not in any way restrict the operation of the device. o1 trig in ref test setup device under test (dut) oscilloscope pulse generator o2 out trig i1 i2 timing diagram for testing t rise t fall per in pw in t rise t fall 20% 20% 50% 50% 80% 80% 50% 50% v ih v il v oh v ol input signal output signal
|
