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Time and Frequency

Symmetricom 6502 distribution amplifier

A look inside the symmetricom 6502 frequency distribution amplifier.

Input stage is based on LMH6702 http://www.ti.com/lit/ds/symlink/lmh6702.pdf.

Output stage is based on LMH6609 http://www.ti.com/lit/ds/symlink/lmh6609.pdf

PDF of sketched schematic, based on the photos: 6502B_schematic_v2

I measured the phase-noise at 10MHz earlier. This amplifier has a far-out phase-noise floor of around -163 dBc/Hz.

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