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The HP 71604B pattern generator consists of pattern generator and synthesized clock source modules configured in the HP 70000 modular measurement system (MMS). The HP 71604B covers the range from 100 Mb/s to 3 Gb/s and features standard pseudo-random test patterns up to 2^31 - 1 bits long. Users can program and run variable length test patterns from 1 bit to 4 Mbs long or create two equal length patterns up to 2 Mbs long and switch seamlessly between them. User-programmable patterns are created using the screenbased ed itor or are transferred to the pattern generator on an MS-DOS format, 3 1/2,-in floppy disk. dc-coupled, closely-matched complementary clock and data outputs simplify connection to highspeed logic devices. Bit Rate: 100 Mb/s to 3 Gb/s; resolution 1 Hz. Rise Time (20% to 80%): <90 ps. Patterns: 2^31 -1, 2^23 -1, 2^15 -1, 2^10 -1, 2^7 -1; zero substitution variable mark density patterns; variable length user patterns from 1 bit to 4 Mbits. Data and Data Outputs: ECL or variable 0.25 V to 2 V p-p amplitude into 50 ohm, high level + 1 V to -3.75 V. Clock/Data Delay: ± 1 ns; resolution 1 ps.
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