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 + T
INC
* A
where A is the address code, T
INC
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.
3
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
TRIG
N/C
OUT
N/C
N/C
N/C
RES
N/C
N/C
N/C
N/C
GND
VCC
OUT/
N/C
N/C
N/C
A0
A1
A2
N/C
A3
A4
A5
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
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, T
OTR
, 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.
`
T
OAX
T
RTS
T
TW
T
TO
PW
A
A5-A0
RES
TRIG
OUT
OUT/
Figure 1: Timing Diagram
A
i
A
i+1
T
SKEW
T
ATS
T
RO
T
OTR
T
TW
T
RW
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 PW
T
63 T
INC
Inherent Pulse Width PW
0
8.0 12.0 16.0 ns
Trigger to Output Delay T
TO
1.5 3.5 5.5 ns
Reset to Output Delay T
RO
17.0 ns
Output Skew T
SKEW
1.5 ns
Trigger Pulse Width T
TW
5.0 ns
Reset Pulse Width T
RW
10.0 ns
Reset to Trigger Setup Time T
RTS
9.0 ns
Address to Trigger Setup Time T
ATS
6.0 ns
Output Low to Address Change T
OAX
0.0 ns
Output to Trigger Recovery Time T
OTR
15 % of PW
T
*or 10ns, whichever is greater
TABLE 2: ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL MIN MAX UNITS NOTES
DC Supply Voltage V
CC
-0.3 7.0 V
Input Pin Voltage V
IN
-0.3 VDD+0.3 V
Storage Temperature T
STRG
-55 150 C
Lead Temperature T
LEAD
300 C 10 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 V
OH
2.5 3.4 V VCC = MIN, IOH = MAX
VIH = MIN, VIL = MAX
Low Level Output Voltage V
OL
0.35 0.5 V VCC = MIN, IOL = MAX
VIH = MIN, VIL = MAX
High Level Output Current I
OH
-1.0 mA
Low Level Output Current I
OL
20.0 mA
High Level Input Voltage V
IH
2.0 V
Low Level Input Voltage V
IL
0.8 V
Input Clamp Voltage V
IK
-1.2 V VCC = MIN, II = I
IK
Input Current at Maximum
Input Voltage
I
IHH
0.1 mA VCC = MAX, VI = 7.0V
High Level Input Current I
IH
20
µA
VCC = MAX, VI = 2.7V
Low Level Input Current I
IL
-0.6 mA VCC = MAX, VI = 0.5V
Short-circuit Output Current I
OS
-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
1 2 3 4 5 6 7 8
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
1 2 3 4 5 6 7 8 9 10 11 12
131415161718192021222324
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 ± 3oC Load: 1 FAST-TTL Gate
Supply Voltage (Vcc): 5.0V ± 0.1V C
load
: 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
IN
REF
TRIG
Test Setup
DEVICE UNDER
TEST (DUT)
TIME INTERVAL
COUNTER
PULSE
GENERATOR
COMPUTER
SYSTEM
PRINTER
IN
Timing Diagram For Testing
T
TO
PW
A
PER
IN
PW
IN
T
RISE
T
FALL
0.6V0.6V
1.5V1.5V
2.4V 2.4V
1.5V1.5V
V
IH
V
IL
V
OH
V
OL
INPUT
SIGNAL
OUTPUT
SIGNAL
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