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3D7438x-250 Datasheet(PDF) 1 Page - Data Delay Devices, Inc. |
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3D7438x-250 Datasheet(HTML) 1 Page - Data Delay Devices, Inc. |
1 / 6 page 3D7438 Doc #10004 DATA DELAY DEVICES, INC. 1 7/8/2010 3 Mt. Prospect Ave. Clifton, NJ 07013 MONOLITHIC 8-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7438) FEATURES PACKAGES All-silicon, low-power CMOS technology TTL/CMOS compatible inputs and outputs Vapor phase, IR and wave solderable Leading- and trailing-edge accuracy Programmable via serial or parallel interface Increment range: 50ps through 250ps Delay tolerance: 0.5% (See Table 1) Supply current: 3mA typical Temperature stability: 1.5% max (-40C to 85C) Vdd stability: 0.5% max (4.75V to 5.25V) FUNCTIONAL DESCRIPTION The 3D7438 device is a versatile 8-bit programmable monolithic delay line. The input (IN) is reproduced at the output (OUT) without inversion, shifted in time as per the user selection. Delay values, programmed either via the serial or parallel interface, can be varied over 255 equal steps according to the formula: Ti,nom = Tinh + i * Tinc where i is the programmed address, Tinc is the delay increment (equal to the device dash number), and Tinh is the inherent (address zero) delay. The device features both rising- and falling-edge accuracy. The all-CMOS 3D7438 integrated circuit has been designed as a reliable, economic alternative to hybrid TTL programmable delay lines. It is offered in a standard surface mount 16-pin SOL. An 8-pin SOIC package is available for applications where the parallel interface is not needed. Similarly, a 14-pin SOIC is offered for applications where the serial interface is not needed. TABLE 1: PART NUMBER SPECIFICATIONS PART DELAYS AND TOLERANCES INPUT RESTRICTIONS NUMBER Inherent Delay (ns) Delay Range (ns) Delay Step (ps) Max Freq (Addr=0) Max Freq (Addr=255) Min P.Width (Addr=0) Min P.Width (Addr=255) 3D7438x-50 7.0 0.5 12.750 .05 50 25 150 MHz 98 MHz 3.3 ns 5.1 ns 3D7438x-60 7.0 0.5 15.300 .06 60 30 150 MHz 82 MHz 3.3 ns 6.1 ns 3D7438x-75 7.0 0.5 19.125 .08 75 38 150 MHz 65 MHz 3.3 ns 7.6 ns 3D7438x-80 7.0 0.5 20.400 .08 80 40 150 MHz 61 MHz 3.3 ns 8.1 ns 3D7438x-100 7.0 0.5 25.500 .10 100 50 150 MHz 49 MHz 3.3 ns 10.0 ns 3D7438x-125 7.0 0.5 31.875 .13 125 63 150 MHz 39 MHz 3.3 ns 12.7 ns 3D7438x-150 7.0 0.5 38.250 .15 150 75 150 MHz 32 MHz 3.3 ns 15.3 ns 3D7438x-200 7.0 0.5 51.000 .20 200 100 150 MHz 24 MHz 3.3 ns 20.4 ns 3D7438x-250 7.0 0.5 63.750 .25 250 125 150 MHz 19 MHz 3.3 ns 25.5 ns NOTES: Replace the ‘x’ in the part number with D, S or Z, depending on choice of package. Any dash number between 50 and 250 not shown is also available as standard. See application notes section for more details 2010 Data Delay Devices PIN DESCRIPTIONS IN Signal Input OUT Signal Output MD Mode Select AE Address Enable P0-P7 Parallel Data Input SC Serial Clock SI Serial Data Input SO Serial Data Output VDD +5 Volts GND Ground 1 2 3 4 8 7 6 5 IN SO AE GND VDD OUT SC SI 3D7438Z-xx SOIC8 3D7438D-xx SOIC14 1 2 3 4 5 6 7 14 13 12 11 10 9 8 IN AE P0 P1 P2 P3 GND VDD OUT P7 P6 P5 P4 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN AE SO/P0 P1 P2 P3 P4 GND VDD OUT MD P7 P6 SC P5 SI 3D7438S-xx SOW16 For mechanical dimensions, click here. For package marking details, click here. Super-Fine Resolution |
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