MAX2361/MAX2363/MAX2365
Complete Dual-Band
Quadrature Transmitters
______________________________________________________________________________________ 25
Selector Guide
vides local decoupling at each V
CC
pin. Use at least
one via per bypass capacitor for a low-inductance
ground connection. Also, connect the exposed paddle
to PC board GND with multiple vias to provide the low-
est inductance possible.
Matching Network Layout
The layout of a matching network can be very sensitive
to parasitic circuit elements. To minimize parasitic
inductance, keep all traces short and place compo-
nents as close to the IC as possible. To minimize para-
sitic capacitance, a cutout in the ground plane (and
any other planes) below the matching network compo-
nents can be used.
On the high-impedance ports (e.g., IF inputs and out-
puts), keep traces short to minimize shunt capacitance.
Tank Layout
Keep the traces coming out of the tank short to reduce
series inductance and shunt capacitance. Keep the
inductor pads and coupling capacitor pads small to
minimize stray shunt capacitance.
MHz
LO Input Level LOH -7 dBm
Maximum RFH0 Output
Power
V
GC
= 2.4V, MPL = 1 8 dBm
Minimum RFH0 Output
Power
ZERO_BIAS = 1, SNR = 20dB -75 dBm
Zero Bias Gain Step From ZERO_BIAS = 1 to ZERO_BIAS = 0, V
GC
= 2.0V 27 dB
f
OFFSET
= ±3.5MHz in 30kHz BW -60
f
OFFSET
= ±5MHz in 3.84MHz BW -45
Adjacent Channel Power
Ratio
f
OFFSET
= ±10MHz in 3.84MHz BW -58
dBc
Receive Band Noise
Power
MPL= 1, P
RFH0
= +8dBm, f
RFH0
= 1950MHz, measured at
2140MHz
-134 dBm/Hz
Table 12. Cascaded WCDMA Performance.
(From I/Q input to PA driver output, IQ_LEVEL = 1, V
I_
= V
Q_
= 146mV
RMS
, uplink 3GPP modulation or 600mVp-p differential with
0.1% 3.25dB peak-average ratio.)
PART
MAX2361
1400 to 2360
800 to 1150
RF LO RANGE (MHz)IF RANGE (MHz)
120 to 235
120 to 380
MAX2363
MAX2365
RF RANGE (MHz)
800 to 1150
1400 to 2360
800 to 1000
120 to 380
120 to 235
1700 to 2000
1700 to 2000
800 to 1000
