MAX2665 Maxim Integrated Products, MAX2665 Datasheet - Page 9

• Manufacturer Part Number: MAX2665
• Description: VHF/UHF Low-Noise Amplifiers
• Manufacturer: Maxim Integrated Products

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The MAX2664/MAX2665 are low-power LNAs designed
for VHF/UHF applications. The devices feature an inter-
nal LNA bypass control mode for better linearity under
high-input-signal power conditions. The devices are
offered in a small WLP package.
BUMP
A1
A2
B1
B2
RFOUT/CTRL
NAME
GND
RFIN
V
Detailed Description
CC
Ground. Connect to the PCB ground plane with minimal trace inductance.
Supply Voltage. Bypass to ground with a 1000pF capacitor as close as possible to the IC.
RF Input. Requires an external matching inductor and DC-blocking capacitor. The nominal
internal DC voltage is 750mV.
RF Output and Bypass Control (see the Applications Information section). RFOUT is
internally matched to 50I and incorporates an internal DC-blocking capacitor.
VHF/UHF Low-Noise Amplifiers
TOP VIEW
RFIN
GND
+
A1
B1
MAX2664
MAX2665
WLP
Only an inductor in series with a DC-blocking capaci-
tor is needed to form the input-matching network. The
Typical Application Circuit shows the recommended
input-matching network. These values are optimized for
the best simultaneous gain, noise figure, and return loss
performance. Table 1 lists typical device S-parameter
values. The devices integrate an on-chip 50I output-
matching network, eliminating the need for external
matching components.
A2
B2
V
RFOUT/CTRL
CC
FUNCTION
Input and Output Matching
Bump Configuration
Bump Description
9