TTL Gated
Oscillators
TTL Pulse Width
Generator Modules
TTL Pulse Width
Discriminators
These gated oscillators permit synchroniza-
tion of the output square wave with the high-to-
low transition of the enable input. When the
enable is high, the output is held high. The
output will start with a high-to-low transition one
half-cycle after the input trigger. The output
frequency tolerance is ± 3%.
Triggered by the input's rising edge (input
pulse width 10 ns, min.), a pulse of specified
width will be generated at the output with a
propagation delay of 5 ± 2 ns (7 ± 2 ns, for
inverted output). High-to-low transitions will
not trigger the unit. Designed for output duty-
cycle less than 50%.
Input pulse widths greater than the Nominal
value (XX in ns from P/N TTLPD-XX) of the
module, will propagate with delay of (XX + 5ns)
± 5% or 2 ns, whichever is greater. Output
pulse width will follow the input width ± 7% or
4 ns, whichever is greater. Input pulse widths
less than the Nominal value will be sup-
pressed.
IN
Pin 8
E
Pin 8
IN
Pin 8
PW > XX
IN
PW
< XX
OUT
Pin 1
IN
OUT
Pin 1
OUT
Pin 1
T
T
OFF
T
T
T
PW
ON
D
D
D
OUT
PW
PW
OUT
OUT
TTLOS
TTLPWG
TTLPD
Schematic
Schematic
Schematic
Vcc
14
ENABLE
Vcc OUT
IN
8
Vcc
14
IN
8
14
13
8
SQUARE WAVE
OSCILLATOR
Pulse Width
Control Circuit
Pulse Width
Discriminator
1
7
1
7
1
7
OUT
GND
GND
OUT
OUT
GND
Electrical Specifications at 25OC
TTL Gated Oscillators
Electrical Specifications at 25OC
TTL Buffered Pulse Width Generator Modules
Electrical Specifications at 25OC
TTL Pulse Width Discriminator Modules
Suppressed Passed
Pulse Width, Pulse Width,
Part Number
Output Pulse
Width (ns)
Maximum
Freq. (MHz)
Part Number
Output Frequency
Part Number
Max. (ns)
< 8.5
Min. (ns)
> 11.5
> 16.5
> 21.5
> 26.5
> 31.5
> 42.0
> 52.5
> 63.0
> 79.0
> 105.0
> 126.0
> 131.3
> 157.5
> 210.0
TTLPD-10
TTLPD-15
TTLPD-20
TTLPD-25
TTLPD-30
TTLPD-40
TTLPD-50
TTLPD-60
TTLPD-75
TTLPD-100
TTLPD-120
TTLPD-125
TTLPD-150
TTLPD-200
TTLOS-5
TTLOS-10
TTLOS-15
TTLOS-20
TTLOS-25
TTLOS-30
TTLOS-33
TTLOS-35
TTLOS-40
TTLOS-45
TTLOS-50
TTLOS-66
TTLOS-75
TTLOS-80
5 MHz
10 MHz
15 MHz
20 MHz
25 MHz
30 MHz
33 MHz
35 MHz
40 MHz
45 MHz
50 MHz
66 MHz
75 MHz
80 MHz
TTLPWG-5
TTLPWG-7
5 ± 1.0
7 ± 1.0
63
53
42
32
22
19
15
13
11
10
9
< 13.5
< 18.5
< 23.5
< 28.5
< 38.0
< 47.5
< 57.0
< 71.0
< 95.0
< 114.0
< 118.7
< 142.5
< 190.0
TTLPWG-10
TTLPWG-15
TTLPWG-20
TTLPWG-25
TTLPWG-30
TTLPWG-35
TTLPWG-40
TTLPWG-45
TTLPWG-50
TTLPWG-60
TTLPWG-80
TTLPWG-100
10 ± 1.5
15 ± 2.0
20 ± 2.0
25 ± 2.0
30 ± 2.0
35 ± 2.0
40 ± 2.0
45 ± 2.25
50 ± 2.5
60 ± 3.0
80 ± 4.0
100 ± 5.0
8
6
5
Dimensions in Inches (mm)
14-Pin Package with Unused Leads Removed Per Schematic
GENERAL: For Operating Specifications and Test Condi-
tions, see Tables I and VI on page 5 of this catalog. Delays
specified for the Leading Edge.
.810
(20.57)
MAX.
.400
(10.16)
MAX.
Operating Temp. Range ................................. 0OC to +70OC
Temperature Coefficient ........................ 500ppm/OC typical
Supply Current, ICC
.245
.275
(6.22)
(6.99)
TYP. MAX.
TTLPWG .............................. 35 mA typ., 55 mA max.
TTLPD .................................. 42 mA typ., 60 mA max.
TTLOS .................................. 15 mA typ., 30 mA max.
.020
(0.51)
TYP.
.120
(3.05)
MIN.
.010
(0.25)
TYP.
.100
(2.54)
TYP.
.300
(7.62)
.050
(1.27)
TYP.
.600
(15.24)
TYP.
For other values & Custom Designs, contact factory.
Specifications subject to change without notice.
TTL_PW 1/98
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Rhombus
Industries Inc.
Tel: (714) 898-0960 • Fax: (714) 896-0971
23
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