3D7304 data 3 delay devices, inc. MONOLITHIC QUADRUPLE FIXED DELAY LINE (SERIES 3D7304) PACKAGES FEATURES • • • • • • • • • • • • All-silicon, low-power CMOS technology VDD I1 1 14 TTL/CMOS compatible inputs and outputs N/C N/C 2 13 Vapor phase, IR and wave solderable O1 I2 3 12 Auto-insertable (DIP pkg.) N/C I3 4 11 Low ground bounce noise O2 I4 5 10 Leading- and trailing-edge accuracy O3 N/C 6 9 Delay range: 10 through 500ns O4 GND 7 8 Delay tolerance: 2% or 1.0ns Temperature stability: ±3% typical (0C-70C) 3D7304 DIP Vdd stability: ±1% typical (4.75V-5.25V) 3D7304G Gull-Wing Minimum input pulse width: 20% of total (300 Mil) delay 14-pin Gull-Wing available as drop-in replacement for hybrid delay lines I1 N/C I2 I3 I4 N/C GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 3D7304D SOIC (150 Mil) FUNCTIONAL DESCRIPTION PIN DESCRIPTIONS The 3D7304 Quadruple Delay Line product family consists of fixeddelay CMOS integrated circuits. Each package contains four matched, independent delay lines. Delay values can range from 10ns through 500ns. The input is reproduced at the output without inversion, shifted in time as per the user-specified dash number. The 3D7304 is TTLand CMOS-compatible, capable of driving ten 74LS-type loads, and features both rising- and falling-edge accuracy. I1 I2 I3 I4 O1 O2 O3 O4 VCC GND N/C The all-CMOS 3D7304 integrated circuit has been designed as a reliable, economic alternative to hybrid TTL fixed delay lines. It is offered in a standard 14-pin auto-insertable DIP and a space saving surface mount 14-pin SOIC. VDD N/C O1 N/C O2 O3 O4 Delay Line 1 Input Delay Line 2 Input Delay Line 3 Input Delay Line 4 Input Delay Line 1 Output Delay Line 2 Output Delay Line 3 Output Delay Line 4 Output +5 Volts Ground No Connection TABLE 1: PART NUMBER SPECIFICATIONS DIP-14 3D7304 -10 -15 -20 -25 -30 -40 -50 -100 -200 -300 -400 -500 PART NUMBER DIP-14 SOIC-14 3D7304G 3D7304D -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -40 -40 -50 -50 -100 -100 -200 -200 -300 -300 -400 -400 -500 -500 DELAY PER LINE (ns) 10 ± 1.0 15 ± 1.0 20 ± 1.0 25 ± 1.0 30 ± 1.0 40 ± 1.0 50 ± 1.0 100 ± 2.0 200 ± 4.0 300 ± 6.0 400 ± 8.0 500 ± 10.0 Max Operating Frequency 33.3 MHz 22.2 MHz 16.7 MHz 13.3 MHz 11.1 MHz 8.33 MHz 6.67 MHz 3.33 MHz 1.67 MHz 1.11 MHz 0.83 MHz 0.67 MHz INPUT RESTRICTIONS Absolute Max Min Operating Oper. Freq. Pulse Width 100.0 MHz 15.0 ns 100.0 MHz 22.5 ns 100.0 MHz 30.0 ns 83.3 MHz 37.5 ns 71.4 MHz 45.0 ns 62.5 MHz 60.0 ns 50.0 MHz 75.0 ns 25.0 MHz 150.0 ns 12.5 MHz 300.0 ns 8.33 MHz 450.0 ns 6.25 MHz 600.0 ns 5.00 MHz 750.0 ns NOTES: Any delay between 10 and 500 ns not shown is also available. Doc #96002 12/2/96 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 Absolute Min Oper. P.W. 5.0 ns 5.0 ns 5.0 ns 6.0 ns 7.0 ns 8.0 ns 10.0 ns 20.0 ns 40.0 ns 60.0 ns 80.0 ns 100.0 ns 1996 Data Delay Devices 1 3D7304 APPLICATION NOTES To guarantee the Table 1 delay accuracy for input frequencies higher than the Maximum Operating Frequency, the 3D7304 must be tested at the user operating frequency. Therefore, to facilitate production and device identification, the part number will include a custom reference designator identifying the intended frequency of operation. The programmed delay accuracy of the device is guaranteed, therefore, only at the user specified input frequency. Small input frequency variation about the selected frequency will only marginally impact the programmed delay accuracy, if at all. Nevertheless, it is strongly recommended that the engineering staff at DATA DELAY DEVICES be consulted. OPERATIONAL DESCRIPTION The 3D7304 quadruple delay line architecture is shown in Figure 1. The individual delay lines are composed of a number of delay cells connected in series. Each delay line produces at its output a replica of the signal present at its input, shifted in time. The delay lines are matched and share the same compensation signals, which minimizes line-to-line delay deviations over temperature and supply voltage variations. INPUT SIGNAL CHARACTERISTICS The Frequency and/or Pulse Width (high or low) of operation may adversely impact the specified delay accuracy of the particular device. The reasons for the dependency of the output delay accuracy on the input signal characteristics are varied and complex. Therefore a Maximum and an Absolute Maximum operating input frequency and a Minimum and an Absolute Minimum operating pulse width have been specified. OPERATING PULSE WIDTH The Absolute Minimum Operating Pulse Width (high or low) specification, tabulated in Table 1, determines the smallest Pulse Width of the delay line input signal that can be reproduced, shifted in time at the device output, with acceptable pulse width distortion. OPERATING FREQUENCY The Minimum Operating Pulse Width (high or low) specification determines the smallest Pulse Width of the delay line input signal for which the output delay accuracy tabulated in Table 1 is guaranteed. The Absolute Maximum Operating Frequency specification, tabulated in Table 1, determines the highest frequency of the delay line input signal that can be reproduced, shifted in time at the device output, with acceptable duty cycle distortion. To guarantee the Table 1 delay accuracy for input pulse width smaller than the Minimum Operating Pulse Width, the 3D7304 must be tested at the user operating pulse width. Therefore, to facilitate production and device identification, the part number will include a The Maximum Operating Frequency specification determines the highest frequency of the delay line input signal for which the output delay accuracy is guaranteed. VDD Temp & VDD Compensation GND O1 O2 O3 O4 Delay Line Delay Line Delay Line Delay Line I1 I2 I3 I4 Figure 1: 3D7304 Functional Diagram Doc #96002 12/2/96 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 2 3D7304 APPLICATION NOTES (CONT’D) custom reference designator identifying the intended frequency and duty cycle of operation. The programmed delay accuracy of the device is guaranteed, therefore, only for the user specified input characteristics. Small input pulse width variation about the selected pulse width will only marginally impact the programmed delay accuracy, if at all. Nevertheless, it is strongly recommended that the engineering staff at DATA DELAY DEVICES be consulted. POWER SUPPLY AND TEMPERATURE CONSIDERATIONS The delay of CMOS integrated circuits is strongly dependent on power supply and temperature. The monolithic 3D7304 programmable delay line utilizes novel and innovative compensation circuitry to minimize the delay variations induced by fluctuations in power supply and/or temperature. The thermal coefficient is reduced to 600 PPM/C, which is equivalent to a variation , over the 0C-70C operating range, of ±3% from the room-temperature delay settings and/or 1.0ns, whichever is greater. The power supply coefficient is reduced, over the 4.75V-5.25V operating range, to ±1% of the delay settings at the nominal 5.0VDC power supply and/or 2.0ns, whichever is greater. It is essential that the power supply pin be adequately bypassed and filtered. In addition, the power bus should be of as low an impedance construction as possible. Power planes are preferred. DEVICE SPECIFICATIONS TABLE 2: ABSOLUTE MAXIMUM RATINGS PARAMETER DC Supply Voltage Input Pin Voltage Input Pin Current Storage Temperature Lead Temperature SYMBOL VDD VIN IIN TSTRG TLEAD MIN -0.3 -0.3 -1.0 -55 MAX 7.0 VDD+0.3 1.0 150 300 UNITS V V mA C C NOTES 25C 10 sec TABLE 3: DC ELECTRICAL CHARACTERISTICS (0C to 70C, 4.75V to 5.25V) PARAMETER Static Supply Current* High Level Input Voltage Low Level Input Voltage High Level Input Current Low Level Input Current High Level Output Current SYMBOL IDD VIH VIL IIH IIL IOH MIN -4.0 UNITS mA V V µA µA mA Low Level Output Current IOL 4.0 mA Output Rise & Fall Time T R & TF *IDD(Dynamic) = 3 * CLD * VDD * F where: CLD = Average capacitance load/line (pf) F = Input frequency (GHz) Doc #96002 12/2/96 MAX 30 2.0 0.8 1 1 2 ns NOTES VIH = VDD VIL = 0V VDD = 4.75V VOH = 2.4V VDD = 4.75V VOL = 0.4V CLD = 5 pf Input Capacitance = 10 pf typical Output Load Capacitance (CLD) = 25 pf max DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 3 3D7304 SILICON 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: 50Ω Max. Rise/Fall Time: 3.0 ns Max. (measured between 0.6V and 2.4V ) Pulse Width: PWIN = 1.25 x Total Delay Period: PERIN = 2.5 x Total Delay OUTPUT: Rload: Cload: Threshold: Device Under Test 10KΩ ± 10% 5pf ± 10% 1.5V (Rising & Falling) Digital Scope 10KΩ 5pf 470Ω NOTE: The above conditions are for test only and do not in any way restrict the operation of the device. PRINTER COMPUTER SYSTEM REF PULSE GENERATOR IN1 DEVICE UNDER IN2 TEST (DUT) IN3 IN4 OUT TRIG OUT1 OUT2 OUT3 OUT4 IN TRIG DIGITAL SCOPE/ TIME INTERVAL COUNTER Figure 2: Test Setup PERIN PWIN tRISE INPUT SIGNAL tFALL VIH 2.4V 1.5V 0.6V 2.4V 1.5V 0.6V tPLH OUTPUT SIGNAL VIL tPHL VOH 1.5V 1.5V VOL Figure 3: Timing Diagram Doc #96002 12/2/96 DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com 4