PG509

The Tektronix PG509 is a 350ps rise-time pulse generator plug-in for the TM500 system.

Manuals – Specifications – Links – Pictures

It is intended for use as a stimulus for making measurements and produces a fixed-amplitude rectangular positive pulse waveform.

The amplitude control and pulse inhibit inputs at the front are designed to interface an AT5010 GPIB controlled attenuator, creating a GPIB-controlled variable amplitude pulse generator.

Key Specifications

Amplitude	25 V (specified into 50 Ω), adjustable ±5%
Rise time	350 ±50 ps
Pulse width	44 ±2 ns
Repetition rate	50 kHz ±10%
Pretrigger out	220 mV ±20% into 50 Ω, 115 ns ±25% before output
Inputs	Amplitude Control, front-panel Pin Tip jack / rear connector A15; −1.5 mA to −0.5 mA for 23.75 V to 26.25 V output; at less than −0.15 mA, the front-panel Variable Amplitude adjustment takes effect Pulse Control, front-panel Pin Tip jack / rear connector B15; TTL low level inhibits output

Links

• See also 067-1094-99 and High Amplitude Pulse Generator

Documents Referencing PG509

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Internals

The PG509 uses an avalanche transistor and charge line to generate the fast-rising output pulse. A voltage doubler fed by two series-connected 25 V mainframe windings provides +150 V for the avalanche stage.

Rear Interface

• A15 − Amplitude control
• B15 − Pulse inhibit

Pictures

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  schematic

Components

Some Parts Used in the PG509

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