MAX2538EVKIT Maxim Integrated Products, MAX2538EVKIT Datasheet - Page 3

• Manufacturer Part Number: MAX2538EVKIT
• Description: RF Modules & Development Tools MAX2538 EVAL KIT MAX2538 EVAL KIT
• Manufacturer: Maxim Integrated Products

Specifications of MAX2538EVKIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4) Set a second RF generator output frequency
5) Connect the coaxial cable from the desired IF port
6) Set the spectrum analyzer center frequency to
7) Turn on the DC supply and activate the RF genera-
8) The signal that appears on the spectrum analyzer
Table 1. Modes of Operation
X = Don’t care.
according to Table 3, and connect it to the LO input
port (LO_IN).
SMA connector to the spectrum analyzer. See Table
2 for IF port and jumper settings.
183.6MHz.
tors’ outputs.
should have an amplitude of approximately -17dBm
in high-gain mode.
Cellular
BAND
PCS
GPS
Quadruple-Mode LNA/Mixer Evaluation Kits
_______________________________________________________________________________________
High gain/high linearity
High gain/high linearity
High gain/low linearity
OPERATING MODE
Ultra-low gain
Ultra-low gain
Low gain
Low gain
Midgain
GPS
IF_SEL
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
0 = IF0
1 = IF1
X
A good PC board layout is an essential part of an RF cir-
cuit design. The EV kit PC board can serve as a guide
for laying out a board using the MAX2351/MAX2354/
MAX2358/MAX2359/MAX2530/MAX2531/MAX2537/
MAX2538. Put a decoupling capacitor close to the
device’s VCC pin to minimize supply coupling. Proper
grounding of the GND pin is essential. Connect the
GND pin to the ground plane either directly or through
vias as close to the pin as possible. Keep traces carry-
ing RF signals as short as possible to minimize radiation
and insertion loss. Keep the differential mixer output
traces together and of equal length to ensure signal bal-
ance. Solder the entire bottom-side exposed pad evenly
to the board ground plane for proper device operation.
Run the LNA input trace on the top layer of the PC
board to avoid via-induced coupling. Minimize parallel
RF traces to improve coupling loss and isolation. Use
abundant ground vias between RF traces to minimize
undesired coupling.
G2
LO
LO
LO
LO
LO
HI
HI
HI
HI
G1
LO
LO
LO
LO
LO
LO
HI
HI
HI
MODE
LO
LO
HI
HI
X
X
X
X
X
Layout
BAND
LO
LO
LO
LO
LO
HI
HI
HI
HI
3