SLIM-IFA-33 rev A
4-30-08. Update page to reflect Revision A.
IF Amplifier Module
8-11-09. Add revision history
9-15-09. Correction to Title, this is
obviously not the Control Board (sorry).
I.F. Amplifier, size-A
Use your mouse's "right click" and "Save Link" to download:
SKSLIM-IFA-33 rev A
Schematic, in ExpressPCB software.
b. LAYSLIM-IFA-33 rev A
ExpressPCB software. Use for locating parts on board.
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.
MMICs have a bandwidth of over 4 GHz, so a 40 MHz low pass filter is
in each output. At 10.7 MHz, the single stage gain is 20 dB, with
dB compression point output of greater than +13 dBm.
Noise figure is less than 3 dB. 38 ma. of
bias current (for each amplifier) 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.
This module was given the suffix "-33" because it specifies
using the MiniCircuits ERA-33 MMIC. However, other MMIC's can be
substituted (with appropriate bias component changes).
Original Release: Released
SLIM-IFA-33 Rev 0, SK-IFA-33 Rev 0, PWB-RFA
Rev 0, PLSLIM-IFA-33 Rev 0
SLIM-IFA-33 Rev A, SKSLIM-IFA-33 Rev A, PWB-RFA
Rev 0, PLSLIM-IFA-33 Rev A
Change to schematic and parts list.
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
SKSLIM-IFA-33, Schematic of SLIM-IFA-33