QPL9503
Ultra Low-Noise, Flat Gain LNA
®
General Description
The QPL9503 is a flat-gain, high-linearity, ultra-low noise
amplifier in a small 2 x 2 mm surface-mount package. The
LNA provides a gain flatness of 2 dB (peak-to-peak) over a
wide bandwidth from 3 to 6 GHz. At 5.5 GHz, the amplifier
typically provides 21.6 dB gain, +35.5 dBm OIP3 at a 56mA
bias setting, and 0.95 dB noise figure. The LNA can be
biased from a single positive supply ranging from 3.3 to 5
volts. The device is housed in a green/RoHS-compliant
industry-standard 2x2 mm package.
8 Pin 2X2 mm DFN Package
Product Features
0.6-6 GHz Operational Bandwidth
Ultra low noise figure, 0.95 dB NF @ 5.5 GHz
Bias adjustable for linearity optimization
35.5 dBm OIP3 at 65mA IDD
Shut-down mode pin with 1.8V TTL logic
Unconditionally stable
The QPL9503 is internally matched using a high
performance E-pHEMT process and only requires five
external components for operation from a single positive
supply: an external RF choke and blocking/bypass
capacitors and a bias resistor going to pin 1. This LNA
integrates a shut-down biasing capability to allow for
operation in TDD applications.
Integrated shutdown control pin
Maintains OFF state with high Pin drive
+3V to +5V supply; does not require -Vgg
The QPL9503 is optimized for linear performance across
the 3 to 6 GHz frequency band but can operate down to 600
MHz.
Functional Block Diagram
Applications
4.5G, 5G Massive MIMO
Repeaters / DAS
Pin 1 Reference Mark
Mobile Infrastructure
LTE-U / LAA
L-band, S-band, C-band radios
General Purpose Wireless
TDD or FDD systems
1
2
3
4
8
7
6
5
Vbias
RF In
NC
NC
RF Out
GND
GND
Shut Down
Backside Paddle - RF/DC GND
Top View
Ordering Information
Part No.
Description
QPL9503SR
100 pcs on 7” reel
QPL9503TR7
2500 pcs on 7” reel
QPL9503EVB-01
5-6GHz Tuned Evaluation Board
Standard T/R size = 2500 pieces on a 7” reel
Data Sheet February 10, 2017 | Subject to change without notice
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