PPG36F-4C5 - Data Delay Devices, Inc.

PPG36F

Doc #97009 DATA DELAY DEVICES, INC. 1

1/15/97 3 Mt. Prospect Ave. Clifton, NJ 07013

6-BIT PROGRAMMABLE

PULSE GENERATOR

(SERIES PPG36F)

FEATURES PACKAGES

• Digitally programmable in 64 steps

• Monotonic pulse-width-vs-address variation

• Rising edge triggered

• Two separate outputs: inverting & non-inverting

• Precise and stable pulse width

• Input & outputs fully TTL interfaced & buffered

• 10 T2L fan-out capability

• Fits standard 24-pin DIP socket

• Auto-insertable

FUNCTIONAL DESCRIPTION

The PPG36F-series device is a 6-bit digitally programmable pulse

generator. The width, PWA, depends on the address code (A5-A0)

according to the following formula:

PWA = PW0 + TINC * A

where A is the address code, TINC is the incremental pulse width of the

device, and PW0 is the inherent pulse width of the device. The incremental

width is specified by the dash number of the device and can range from 0.5ns through 10ns, inclusively.

RESET is held LOW during normal operation. When it is brought HIGH, OUT and OUT/ are forced into

LOW and HIGH states, respectively, and the unit is ready for the next trigger input. The address is not

latched and must remain asserted while the output pulse is active.

SERIES SPECIFICATIONS

• Programmed pulse width tolerance: 5% or 2ns,

whichever is greater

• Inherent width (PW0): 12ns typical

• Inherent delay (TTO): 3.5ns ± 2ns

• Operating temperature: 0° to 70° C

• Supply voltage VCC: 5VDC ± 5%

• Supply current: ICC = 60ma typical

1997 Data Delay Devices

data

delay

devices, inc.



TRIG

N/C

OUT

N/C

RES

N/C

GND

VCC

OUT/

N/C

PPG36F-xx DIP PPG36F-xxM Military DIP

PPG36F-xxC4 Gull-Wing PPG36F-xxMC4 Military Gull-Wing

PIN DESCRIPTIONS

TRIG Trigger Input

OUT Non-inverted Output

OUT/ Inverted Output

A0-A5 Address Bits

RES Reset

VCC +5 Volts

GND Ground

DASH NUMBER SPECIFICATIONS

Part

Number Incremental Width

Per Step (ns) Total Width

Change (ns)

PPG36F-.5 0.5 ± 0.3 31.5 ± 2.00

PPG36F-1 1 ± 0.5 63.0 ± 3.15

PPG36F-2 2 ± 0.5 126.0 ± 6.30

PPG36F-3 3 ± 1.0 189.0 ± 9.45

PPG36F-4 4 ± 1.0 252.0 ± 12.6

PPG36F-5 5 ± 1.5 315.0 ± 15.8

PPG36F-6 6 ± 1.5 378.0 ± 18.9

PPG36F-7 7 ± 1.5 441.0 ± 22.1

PPG36F-8 8 ± 2.0 504.0 ± 25.2

PPG36F-9 9 ± 2.0 567.0 ± 28.4

PPG36F-10 10 ± 2.0 630.0 ± 31.5

NOTE: Any dash number between .5 and 10 not

shown is also available.

PPG36F

Doc #97009 DATA DELAY DEVICES, INC. 2

1/15/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com

APPLICATION NOTES

DEVICE TIMING

The timing definitions and restrictions for the

PPG36F are shown in Figure 1. The unit is

activated by a rising edge on the TRIG input.

After a time, TTO (called the inherent delay), the

rising edge of the pulse appears at OUT. The

duration of the pulse is given by the above

equation. For the duration of the pulse, the

device ignores subsequent triggers. Once the

falling edge of the pulse has appeared at OUT,

an additional time, TOTR, is required before the

device can respond to the next trigger.

At power-up, the state of the PPG36F is

unknown. Consequently, after power is applied,

the unit may not respond to input triggers for a

time equal to the maximum pulse width, PWT.

After this time, the unit will function properly. If

your application requires that the device function

immediately, issue a quick reset at power-up.

POWER SUPPLY BYPASSING

The PPG36F relies on a stable power supply to

produce repeatable pulses within the stated

tolerances. A 0.1uf capacitor from VCC to GND,

located as close as possible to each VCC pin, is

recommended. A wide VCC trace should

connect all VCC pins externally, and a clean

ground plane should be used.

INCREMENT TOLERANCES

Please note that the increment tolerances listed

represent a design goal. Although most

increments will fall within tolerance, they are not

guaranteed throughout the address range of the

unit. Monotonicity is, however, guaranteed over

all addresses.

TOAX

TRTS TTW

TTO

PWA

A5-A0

RES

TRIG

OUT

OUT/

Figure 1: Timing Diagram

A iAi+1

TSKEW

TATS

TRO TOTR

TTW

TRW

PPG36F

Doc #97009 DATA DELAY DEVICES, INC. 3

1/15/97 3 Mt. Prospect Ave. Clifton, NJ 07013

DEVICE SPECIFICATIONS

TABLE 1: AC CHARACTERISTICS

PARAMETER SYMBOL MIN TYP MAX UNITS

Total Programmable Pulse Width PWT63 TINC

Inherent Pulse Width PW08.0 12.0 16.0 ns

Trigger to Output Delay TTO 1.5 3.5 5.5 ns

Reset to Output Delay TRO 17.0 ns

Output Skew TSKEW 1.5 ns

Trigger Pulse Width TTW 5.0 ns

Reset Pulse Width TRW 10.0 ns

Reset to Trigger Setup Time TRTS 9.0 ns

Address to Trigger Setup Time TATS 6.0 ns

Output Low to Address Change TOAX 0.0 ns

Output to Trigger Recovery Time TOTR 15 % of PWT

*or 10ns, whichever is greater

TABLE 2: ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL MIN MAX UNITS NOTES

DC Supply Voltage VCC -0.3 7.0 V

Input Pin Voltage VIN -0.3 VDD+0.3 V

Storage Temperature TSTRG -55 150 C

Lead Temperature TLEAD 300 C10 sec

TABLE 3: DC ELECTRICAL CHARACTERISTICS

(0C to 70C, 4.75V to 5.25V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

High Level Output Voltage VOH 2.5 3.4 V VCC = MIN, IOH = MAX

VIH = MIN, VIL = MAX

Low Level Output Voltage VOL 0.35 0.5 V VCC = MIN, IOL = MAX

VIH = MIN, VIL = MAX

High Level Output Current IOH -1.0 mA

Low Level Output Current IOL 20.0 mA

High Level Input Voltage VIH 2.0 V

Low Level Input Voltage VIL 0.8 V

Input Clamp Voltage VIK -1.2 V VCC = MIN, II = IIK

Input Current at Maximum

Input Voltage IIHH 0.1 mA VCC = MAX, VI = 7.0V

High Level Input Current IIH 20 µAVCC = MAX, VI = 2.7V

Low Level Input Current IIL -0.6 mA VCC = MAX, VI = 0.5V

Short-circuit Output Current IOS -60 -150 mA VCC = MAX

Output High Fan-out 25 Unit

Output Low Fan-out 12.5 Load

PPG36F

Doc #97009 DATA DELAY DEVICES, INC. 4

1/15/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com

PACKAGE DIMENSIONS

1.270±.010

12345678

16 15 14 13

1211109

.380

MAX.

.015 TYP.

.070 MAX.

.018 TYP. 1.100±.010

11 Equal spaces

each .100±.010

Non-Accumulative

.580

MAX. .600

±.005

.010

±.002

Lead Material:

Nickel-Iron alloy 42

TIN PLATE

20 19 18 1724 23 22 21

DIP (PPG36F-xx, PPG36F-xxM)

1.280±.020

.882

±.005

.020 TYP. .040 TYP.

.100.090 1.100 .280

MAX.

.590

MAX.

.010±.002

.050

±.010

.710

±.005 .007

±.005

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Gull-Wing (PPG36F-xxC4, PPG36F-xxMC4)

PPG36F

Doc #97009 DATA DELAY DEVICES, INC. 5

1/15/97 3 Mt. Prospect Ave. Clifton, NJ 07013

DELAY LINE AUTOMATED TESTING

TEST CONDITIONS

INPUT: OUTPUT:

Ambient Temperature: 25oC ± 3oCLoad: 1 FAST-TTL Gate

Supply Voltage (Vcc): 5.0V ± 0.1V Cload:5pf ± 10%

Input Pulse: High = 3.0V ± 0.1V Threshold: 1.5V (Rising & Falling)

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 = 10ns

Period: PERIN = 2 x Max. Pulse Width

NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.

OUTOUT

TRIG

REF

TRIG

Test Setup

DEVICE UNDER

TEST (DUT) TIME INTERVAL

COUNTER

PULSE

GENERATOR

COMPUTER

SYSTEM

PRINTER

Timing Diagram For Testing

TTO PWA

PERIN

PWIN

TRISE TFALL

0.6V0.6V 1.5V1.5V

2.4V 2.4V

1.5V1.5V

VIH VIL

VOH VOL

INPUT

SIGNAL

OUTPUT

SIGNAL