Clock Drivers
Multiple timing signals ("clocks") are required by CCDs, IR FPAs, and some CMOS image sensors to transport electrical charge across the array to a sense amplifier for conversion into image data. Pulse Instruments offers a line of "clock drivers" for generating these timing signals. The parameters of these clocks (clock rate, pulse width, pulse amplitude, rise- and fall-times, etc.) greatly influence the behavior and performance of the imaging device. Our products take logic-level inputs from a pattern generator and allow the user to adjust the output parameters to suit their device and testing requirements. Clocks can be "tweaked" in real-time to determine optimal operating parameters for a particular device, or else programmed in accordance with a test plan for automated production test.
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Product
65 MHz Single Channel Driver Card
40490
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One channel, 65 MHz driver with an output voltage capability of ±20V. There are two inputs--a standard input with up 65 MHz capability and an optically isolated input with 20 MHz capability. Either input can be selected.
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Product
Dual Channel Clock Driver Card
PI-41400
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The PI-41400 is a dual channel Clock Driver card capable of operating up to 190 MHz into a 50-ohm load and up to 80 MHz at an amplitude of 8 volts into a 1-megohm load. Into a high impedance load the output voltage range is from a –3 volts to 8 volts with the output pulse amplitude ranging from 0.5 V to 9 V. When driving a 50 load the voltage range is –1.5 volts to 4.5 volts with the output pulse amplitude ranging from 0.25 V to 4.5 V. The rise and fall times of the output pulse are variable from 1.2 ns to 9 ns into a 50-ohm load and <5 ns to 9 ns into a HiZ load. The output pulse amplitude and the load being driven determine the range of variability. The driver output can be set for tri-state operation and the output polarity can be set for ‘Normal’ or ‘Inverted’ operation through software.
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Product
Dual Channel Driver Card
42460
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Two channels of 32 MHz clock drivers with up to 20 volt amplitude. The output voltage range is ±20 V, with independent high and low voltage settings. The inputs to the Card can be optically isolated. The card also contains voltage and current sense capability, which allows muxing of the current or voltage output measurements from all the Driver Channels in the system to a single DVM. The card allows independent programming of the rise and fall time of each channel one nanosecond increments.
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Product
Dual Channel Driver Card
40461
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Two channels of 8 to 10 MHz drivers (25 V amplitude). The output voltage range is ±25V, with independent high and low voltage settings. The inputs to the Card are optically isolated. The card also contains voltage and current sense capability, which allows muxing of the current or voltage output measurements from all the Driver Channels in the system to a single DVM. The card allows independent programming of the rise and fall time of each channel as low as one nanosecond increments.
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Product
Dual Channel Tri-Level Driver Card
40465
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Two channels of 10MHz drivers, that can be operated as standard Two-Level Drivers or operated as two channels of Tri-Level Drivers. In the Two-Level mode, the input to each driver channel requires one channel of TTL level timing. Tri-and four level modes require a second clock input. In the Tri-Level Mode, the output from lowest rail to high rail can be 18.5V. Like the 40460 the rise and fall time as well as the high and low voltage levels of each channel is programmable.
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Product
Four Channel Clock Driver Card
PI-41401
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The PI-41401 is a four channel Clock Driver card capable of operating up to 140 MHz at 3V and 100 MHz at 5V amplitudes into a 50 Ohm load. The PI-41401 has a clock rate of 90 MHz at an amplitude of 5 volts into a 1-MOhm load. Into a high impedance load the output voltage range is from –5 volts to +8 volts with the pulse amplitude ranging from 0V to 9V. When driving a 50 load the voltage range is –2.5 volts to 4.0 volts with the pulse amplitude ranging from effectively 0V to 4.5V. Each channel has a common edgespeed control to vary the rising and falling edges of the output waveform. The adjustable slew rate range, for any amplitude, is the minimum edgespeed of that amplitude times 5. The output pulse amplitude and the load being driven determine the range of variability.
