Updated 4-30-08.  Update page to reflect Revision A.

SLIM-IFA-33, I.F. Amplifier, size-A
Use your mouse's "right click" and "Save Link" to download:
a.   SKSLIM-IFA-33 rev A, Schematic, in ExpressPCB software.
b.   LAYSLIM-IFA-33 rev A, Layout, in ExpressPCB software. Use for locating parts on board.
c.   PWB-RFA, PWB artwork, in ExpressPCB software. Use for ordering from Express.
d.   PLSLIM-IFA-33 rev A, Parts List in text format.

    The SLIM-IFA-33 Amplifier module consists of two separate MMIC amplifiers with a common DC power input connector.  The MMICs have a bandwidth of over 4 GHz, so a 40 MHz low pass filter is included in the outputs.  At 10.7 MHz, the single stage gain is 20 dB, with a 1 dB compression point output of greater than +13 dBm.  Noise figure is less than 3 dB.  38 ma. of bias current is required to maintain these specs.  With +10 volts input to the module, a total of 150 ohms dropping resistance is required.  The dropping resistance is split into two 75 ohm resistors, each dissipating 108 milliwatts.  The split resistors also allow for more input power filtering.

Revision A:
    After the first SLIM-IFA-33 was constructed and tested, it was determined that component tolerance was not tight enough to guarantee consistant bandwidth characteristics.  Therefore, Revision A changed the band pass filter in each output stage, to a low pass filter in each stage.
    If the previous SLIM-IFA-33, Rev 0, has been constructed with good results, it does not need to be revised or modified.

SK-IFA-33, Schematic of SLIM-IFA-33