TTL Gated Oscillators TTL Pulse Width Generator Modules TTL Pulse Width Discriminators These gated oscillators permit synchronization of the output square wave with the high-tolow 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 dutycycle 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 suppressed. E Pin 8 IN Pin 8 IN Pin 8 OUT Pin 1 OUT Pin 1 OUT Pin 1 TON T OFF TTLOS Schematic Vcc ENABLE 14 8 T D PW Vcc OUT 14 13 SQUARE WAVE OSCILLATOR T D PW OUT PWIN > XX PWIN < XX T D PW OUT OUT TTLPWG Schematic IN Vcc 8 14 TTLPD Schematic IN 8 Pulse Width Discriminator Pulse Width Control Circuit 1 7 1 7 1 7 OUT GND OUT GND OUT GND Electrical Specifications at 25OC TTL Gated Oscillators Part Number Output Frequency 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 Electrical Specifications at 25OC TTL Buffered Pulse Width Generator Modules Output Pulse Width (ns) TTLPWG-5 5 ± 1.0 TTLPWG-7 7 ± 1.0 TTLPWG-10 10 ± 1.5 TTLPWG-15 15 ± 2.0 TTLPWG-20 20 ± 2.0 TTLPWG-25 25 ± 2.0 TTLPWG-30 30 ± 2.0 TTLPWG-35 35 ± 2.0 TTLPWG-40 40 ± 2.0 TTLPWG-45 45 ± 2.25 TTLPWG-50 50 ± 2.5 TTLPWG-60 60 ± 3.0 TTLPWG-80 80 ± 4.0 TTLPWG-100 100 ± 5.0 Part Number Maximum Freq. (MHz) 63 53 42 32 22 19 15 13 11 10 9 8 6 5 Electrical Specifications at 25OC TTL Pulse Width Discriminator Modules Suppressed Passed Pulse Width, Pulse Width, Part Number Max. (ns) Min. (ns) TTLPD-10 < 8.5 > 11.5 TTLPD-15 < 13.5 > 16.5 TTLPD-20 < 18.5 > 21.5 TTLPD-25 < 23.5 > 26.5 TTLPD-30 < 28.5 > 31.5 TTLPD-40 < 38.0 > 42.0 TTLPD-50 < 47.5 > 52.5 TTLPD-60 < 57.0 > 63.0 TTLPD-75 < 71.0 > 79.0 TTLPD-100 < 95.0 > 105.0 TTLPD-120 < 114.0 > 126.0 TTLPD-125 < 118.7 > 131.3 TTLPD-150 < 142.5 > 157.5 TTLPD-200 < 190.0 > 210.0 Dimensions in Inches (mm) 14-Pin Package with Unused Leads Removed Per Schematic GENERAL: For Operating Specifications and Test Conditions, see Tables I and VI on page 5 of this catalog. Delays specified for the Leading Edge. .810 (20.57) MAX. Operating Temp. Range ................................. 0OC to +70OC Temperature Coefficient ........................ 500ppm/OC typical Supply Current, ICC TTLPWG .............................. 35 mA typ., 55 mA max. TTLPD .................................. 42 mA typ., 60 mA max. TTLOS .................................. 15 mA typ., 30 mA max. .245 .275 (6.22) (6.99) TYP. MAX. .020 (0.51) TYP. .100 (2.54) TYP. Specifications subject to change without notice. Rhombus Industries Inc. .400 (10.16) MAX. .120 (3.05) MIN. .600 (15.24) TYP. For other values & Custom Designs, contact factory. 23 .050 (1.27) TYP. .010 (0.25) TYP. .300 (7.62) TTL_PW 1/98 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971