Evaluation Board Hardware - Analog Devices EVAL-ADMV8502 User Manual

User Guide

EVALUATION BOARD HARDWARE

The ADMV8502-EVALZ has the
ADMV8502-EVALZ also includes a negative voltage generator and
three LDO regulators to provide the necessary supply voltages for
the chip. The regulators can be entirely powered by the 5 V USB
supply voltage from the PC via the SDP-S.
To power the ADMV8502-EVALZ using the 5 V USB supply, slide
the S1 switch to select USB (as shown in
board negative voltage generator and LDO regulators. Alternatively,
the ADMV8502-EVALZ can be powered externally by sliding the S1
switch to select EXT and then connecting the power supplies to
analog.com
ADMV8502 chip on board. The
Figure 2) to power the on-
Figure 2. ADMV8502-EVALZ Lab Bench Setup
EVAL-ADMV8502
the VPOS and VNEG Subminiature Version A (SMA) ports or test
points. The applicable voltage range for the positive input VPOS is
between 3.5 V and 5.5 V, and the applicable voltage range for the
negative input VNEG is between −5.5 V and −2.7 V.
Figure 2 shows an example lab bench setup for the ADMV8502-
EVALZ. To observe the filter response from the ADMV8502-EVALZ,
connect the RF1 and RF2 ports to a network analyzer (or similar
instrument). Typically, RF1 and RF2 are connected to Port 1 and
Port 2 on the network analyzer, as shown in Figure 2.
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