MB-12 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – MicroAmp MB-12 Circuit Board

MicroAmp MB-12 Circuit Board
For Analog Devices Log Detectors
FEATURES
• Fits Analog Devices
AD8317/8319 LFCSP packages
• 10 GHz frequency range
• Controller or Measurement mode
• Uses standard SMD passive parts
• RO-4350 board material
• Fits MicroAmp MH-series housings
The MicroAmp MB-12 circuit board is designed for rapid prototyping of RF log detector circuits using Analog Devices AD8317/8319
devices in LFCSP packages. It can be configured in measurement or controller modes by selectively installing the appropriate resistors.
Using these detectors, the MB-12 can provide a wide dynamic range log detection function at frequencies up to 10 GHz. This board
will fit the MicroAmp MH series of connectorized housings that allow it to be used as a stand-alone detector or cascaded with other
MicroAmp boards for added versatility. Boards are fabricated from a high-performance 13 mil thick RO-4350 laminate with RoHS
compatible ENIG plating (electroless nickel/immersion gold) on both the component side and the solid bottom ground plane. The
board measures 0.490" x 0.590" and mounts into the housing with four #1-72 screws. Detector circuits can be easily designed and
assembled with standard surface-mount passive components. It includes provisions for input DC blocking, impedance matching, and
other RC components for adjusting performance parameters of the log detector. Pads for the input/output connectors allow the SMA
center pins to be easily soldered to the board after it is installed into the housing, as well as large pads to connect the bias voltage and
controller mode input pins to feed-throughs.
LOG DETECTOR SCHEMATIC
ASSEMBLY
REF SIZE FUNCTION
C1 0402 DC block
C2 0402 DC block/bypass
C3 0603 Bypass
C4 0603 Bypass (not labeled)
C5 0603 Lowpass filter
C6 0603 Output lowpass filter
R1 0603 Meas mode divider
R2 0603 Meas mode divider
R3 0603 Temp comp
R4 0603 Output lowpass filter
R5 0603 Input match
U1 LFCSP Log Detector IC
J1
RF input
J2
Log video output
J3
+ Bias (not labeled)
J4
Controller mode input
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