6-2020

RF & Wireless
Skyworks Bluetooth/
Zigbee FEM
RFMW announces design and
sales support for a 2.4 GHz
front-end module (FEM) from
Skyworks Solutions. The
SKY66404-11, 2.4 GHz FEM
is designed for Zigbee, Thread,
and Bluetooth (including Low
Energy) ultra-low power IoT
applications spanning sensors,
beacons, smart meters and
thermostats, wireless cameras,
smoke and CO detectors, wearables
and medical wearables. The
compact (3.5 x 3.0 x 0.82 mm)
multi-chip module houses circuitry
providing increased efficiency,
as well as 4 x greater range
than stand-alone SoC devices.
The module includes a power
amplifier, lownoise amplifier,
lowloss bypass path, transmit
and receive switches, and digital
controls compatible with 1.7
to 3.6 V CMOS levels. Its wide
supply voltage range allows
the device to be used in battery
powered IoT applications over
a broad spectrum of the battery
discharge curve. The integrated
LNA enables as much as 6 to 8
dB receive sensitivity improvement
versus discrete SoCs and
the low power consumption
makes it ideal for operation from
coin cell batteries.
■ RFMW
www.rfmw.com
Adjustable Current
Optimizes Power
Doubler Distortion
Performance
RFMW announced design
and sales support for a GaAs
pHEMT/MESFET and GaN
HEMT amplifier module. The
Qorvo QPA3333 Power Doubler
provides 28 dB of gain for DOC-
SIS 3.1 amplifiers and broadband
CATV hybrid modules from 45
to 1218 MHz. Using a single
24 V supply, the QPA3333 offers
excellent linearity, superior
return loss and low noise which
provides optimal reliability. By
adjusting DC current, distortion
vs. power consumption can be
optimized over a wide range of
output levels. Offered in an 11
x 8.5 mm package.
■ RFMW
www.rfmw.com
Always-on Power
Limiter
RFMW announced design and
sales support for a highpower,
SMT RF limiter. The RFuW
Engineering model RFLM-
102402QF-290, silicon, PIN-
Diode limiter module offers both
high power CW and peak power
protection in the L & S-Band
region (1 to 4 GHz). Capable
of handling average power up to
100 W (50 dBm) and pulsed peak
power up to 1000 W (60 dBm at
pulse width = 25 µs, duty cycle =
5 %), the RFLM-102402QF-290
maintains low flat leakage to less
than 14 dBm (typical), and reduces
spike leakage to less than 0.5
ergs. Recovery time is