PDU13F data 3 delay devices, inc. 3-BIT PROGRAMMABLE DELAY LINE (SERIES PDU13F) FEATURES • • • • • • • • PACKAGES Digitally programmable in 8 delay steps Monotonic delay-versus-address variation Two separate outputs: inverting & non-inverting Precise and stable delays Input & outputs fully TTL interfaced & buffered 10 T2L fan-out capability Fits standard 14-pin DIP socket Auto-insertable IN N/C 14 VCC IN 1 16 VCC 2 13 N/C N/C 2 15 N/C 1 N/C 3 12 N/C N/C 3 14 N/C OUT 4 11 N/C N/C 4 13 N/C OUT/ 5 10 A0 OUT 5 12 N/C EN/ 6 9 A1 OUT/ 6 11 A0 GND 7 8 A2 EN/ 7 10 A1 GND 8 9 A2 PDU13F-xx PDU13F-xxA2 PDU13F-xxB2 PDU13F-xxM DIP Gull-Wing J-Lead Military DIP PDU13F-xxMC3 Military Gull-Wing FUNCTIONAL DESCRIPTION PIN DESCRIPTIONS The PDU13F-series device is a 3-bit digitally programmable delay line. The delay, TDA, from the input pin (IN) to the output pins (OUT, OUT/) depends on the address code (A2-A0) according to the following formula: IN OUT OUT/ A2 A1 A0 EN/ VCC GND TDA = TD0 + TINC * A Delay Line Input Non-inverted Output Inverted Output Address Bit 2 Address Bit 1 Address Bit 0 Output Enable +5 Volts Ground where A is the address code, TINC is the incremental delay of the device, and TD0 is the inherent delay of the device. The incremental delay is specified by the dash number of the device and can range from 0.5ns through 50ns, inclusively. The enable pin (EN/) is held LOW during normal operation. When this signal is brought HIGH, OUT and OUT/ are forced into LOW and HIGH states, respectively. The address is not latched and must remain asserted during normal operation. SERIES SPECIFICATIONS DASH NUMBER SPECIFICATIONS • Part Number PDU13F-.5 PDU13F-1 PDU13F-2 PDU13F-3 PDU13F-5 PDU13F-10 PDU13F-15 PDU13F-20 PDU13F-40 PDU13F-50 • • • • • • • Total programmed delay tolerance: 5% or 1ns, whichever is greater Inherent delay (TD0): 6ns typical (OUT) 5.5ns typical (OUT/) Setup time and propagation delay: Address to input setup (TAIS): 6ns Disable to output delay (TDISO): 6ns typ. (OUT) Operating temperature: 0° to 70° C Temperature coefficient: 100PPM/°C (excludes TD0) Supply voltage VCC: 5VDC ± 5% Supply current: ICCH = 45ma ICCL = 20ma Minimum pulse width: 20% of total delay Incremental Delay Per Step (ns) .5 ± .3 1 ± .4 2 ± .4 3 ± .5 5 ± .6 10 ± 1.0 15 ± 1.3 20 ± 1.5 40 ± 2.0 50 ± 2.5 Total Delay Change (ns) 3.5 ± 1.0 7 ± 1.0 14 ± 1.0 21 ± 1.1 35 ± 1.8 70 ± 3.5 105 ± 5.3 140 ± 7.0 280 ± 14.0 350 ± 17.5 NOTE: Any dash number between .5 and 50 not shown is also available. 1997 Data Delay Devices Doc #97001 1/10/97 Powered by ICminer.com Electronic-Library Service CopyRight 2003 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 1 PDU13F APPLICATION NOTES possibility of spurious signals persists until the required TDISH has elapsed. ADDRESS UPDATE The PDU13F is a memory device. As such, special precautions must be taken when changing the delay address in order to prevent spurious output signals. The timing restrictions are shown in Figure 1. INPUT RESTRICTIONS There are three types of restrictions on input pulse width and period listed in the AC Characteristics table. The recommended conditions are those for which the delay tolerance specifications and monotonicity are guaranteed. The suggested conditions are those for which signals will propagate through the unit without significant distortion. The absolute conditions are those for which the unit will produce some type of output for a given input. After the last signal edge to be delayed has appeared on the OUT pin, a minimum time, TOAX, is required before the address lines can change. This time is given by the following relation: TOAX = max { (Ai - A i-1) * TINC , 0 } where A i-1 and Ai are the old and new address codes, respectively. Violation of this constraint may, depending on the history of the input signal, cause spurious signals to appear on the OUT pin. The possibility of spurious signals persists until the required TOAX has elapsed. When operating the unit between the recommended and absolute conditions, the delays may deviate from their values at low frequency. However, these deviations will remain constant from pulse to pulse if the input pulse width and period remain fixed. In other words, the delay of the unit exhibits frequency and pulse width dependence when operated beyond the recommended conditions. Please consult the technical staff at Data Delay Devices if your application has specific high-frequency requirements. A similar situation occurs when using the EN/ signal to disable the output while IN is active. In this case, the unit must be held in the disabled state until the device is able to “clear” itself. This is achieved by holding the EN/ signal high and the IN signal low for a time given by: Please note that the increment tolerances listed represent a design goal. Although most delay increments will fall within tolerance, they are not guaranteed throughout the address range of the unit. Monotonicity is, however, guaranteed over all addresses. TDISH = Ai * TINC Violation of this constraint may, depending on the history of the input signal, cause spurious signals to appear on the OUT pin. The A2-A0 A i-1 Ai TOAX TAENS TAIS EN/ TENIS PWIN TDISH IN TDA PWOUT TDISO OUT TSKEW OUT/ Figure 1: Timing Diagram Doc #97001 Powered 1/10/97 by ICminer.com DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 Electronic-Library Service CopyRight 2003 http://www.datadelay.com 2 PDU13F DEVICE SPECIFICATIONS TABLE 1: AC CHARACTERISTICS PARAMETER Total Programmable Delay Inherent Delay Output Skew Disable to Output Low Delay Address to Enable Setup Time Address to Input Setup Time Enable to Input Setup Time Output to Address Change Disable Hold Time Absolute Input Period Suggested Recommended Absolute Input Pulse Width Suggested Recommended SYMBOL TDT TD0 TSKEW TDISO TAENS TAIS TENIS TOAX TDISH PERIN PERIN PERIN PWIN PWIN PWIN MIN TYP 7 6.0 1.5 6.0 UNITS TINC ns ns ns ns ns ns 2.0 6.0 6.0 See Text See Text 20 50 200 10 25 100 % of TDT % of TDT % of TDT % of TDT % of TDT % of TDT TABLE 2: 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 VDD+0.3 150 300 UNITS V V C C NOTES 10 sec TABLE 3: DC ELECTRICAL CHARACTERISTICS (0C to 70C, 4.75V to 5.25V) PARAMETER High Level Output Voltage SYMBOL VOH Low Level Output Voltage VOL 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 IOH IOL VIH VIL VIK IIHH Doc #97001 1/10/97 Powered by ICminer.com Electronic-Library Service CopyRight 2003 IIH IIL IOS MIN 2.5 TYP 3.4 MAX UNITS V 0.35 0.5 V -1.0 20.0 0.8 -1.2 0.1 mA mA V V V mA 20 -0.6 -150 25 12.5 µA mA mA Unit Load 2.0 -60 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 NOTES VCC = MIN, IOH = MAX VIH = MIN, VIL = MAX VCC = MIN, IOL = MAX VIH = MIN, VIL = MAX VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX 3 PDU13F PACKAGE DIMENSIONS .020 TYP. .040 TYP. 14 13 12 11 10 14 13 12 11 10 9 1 2 3 .090 2 3 4 5 8 6 7 .270 TYP. Lead Material: Nickel-Iron alloy 42 TIN PLATE 1 9 8 6 .280 MAX. 4 5 .300 MAX. .040 TYP. .020 TYP. 14 13 12 11 10 9 1 .350 MAX. 9 2 .110 Commercial DIP (PDU13F-xx) 14 13 12 11 10 .320 TYP. .270 TYP. .010±.002 .070 MAX. .050 TYP. 8 .015 TYP. .600±.010 6 Equal spaces each .100±.010 Non-Accumulative .050 TYP. Commercial Gull-Wing (PDU13F-xxA2) .290 MAX. .018 TYP. .430 TYP. .100 .600 .790 MAX. 7 .820 MAX. .010 TYP. 3 4 5 6 7 .100 .600 .790 MAX. .350 MAX. .110 TYP. Commercial J-Lead (PDU13F-xxB2) 8 .410 TYP. 1 2 3 4 5 6 .020 TYP. 7 .040 TYP. 16 15 14 13 12 11 10 .010±.002 9 .820 MAX. .020 .320 TYP. MAX. 1 .130 ±.030 .018 TYP. .600 TYP. .100 TYP. .020 TYP. .300 TYP. Military DIP (PDU13F-xxM) Doc #97001 Powered 1/10/97 by ICminer.com .882 ±.005 .710 .590 ±.005 MAX. 2 3 4 5 .090 6 7 8 .100 .700 .880±.020 .280 MAX. .050 ±.010 Military Gull-Wing (PDU13F-xxMC3) DATA DELAY DEVICES, INC. Tel: 973-773-2299 Fax: 973-773-9672 Electronic-Library Service CopyRight 2003 .007 ±.005 http://www.datadelay.com 4 PDU13F 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 = 1.5 x Total Delay Period: PERIN = 4.5 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. PRINTER COMPUTER SYSTEM REF PULSE GENERATOR OUT IN DEVICE UNDER TEST (DUT) TRIG OUT IN TRIG TIME INTERVAL COUNTER Test Setup PERIN PWIN TRISE INPUT SIGNAL TFALL VIH 2.4V 1.5V 0.6V 2.4V 1.5V 0.6V TDAR OUTPUT SIGNAL VIL TDAF VOH 1.5V 1.5V VOL Timing Diagram For Testing Doc #97001 1/10/97 Powered by ICminer.com Electronic-Library Service CopyRight 2003 DATA DELAY DEVICES, INC. 3 Mt. Prospect Ave. Clifton, NJ 07013 5