F2914NBGK
Product Brief
High Reliability SP4T RF Switch 400 MHz to 8000 MHz
F2914 Product Brief, Rev A 10/15/2015 1 © 2015 Integrated Device Technology, Inc.
GENERAL DESCRIPTION
The F2914 is a high reliability, low insertion loss, 50 Ω
SP4T absorptive RF switch designed for a multitude of
wireless and other RF applications. This device covers
a broad frequency range from 400 MHz to 8000 MHz.
In addition to providing low insertion loss, the F2914
also delivers excellent linearity and isolation
performance while providing a 50 Ω termination to the
unused RF ports. The F2914 also includes a patent
pending constant impedance (K
Z
) feature. K
Z
improves
system hot switching ruggedness, minimizes LO pulling
in VCOs, and reduces phase and amplitude variations
in distribution networks. It is also ideal for dynamic
switching/selection between two or more amplifiers
while avoiding damage to upstream/downstream
sensitive devices such as PAs and ADCs.
The F2914 uses a single positive supply voltage
supporting three logic control pins using either 3.3 V or
1.8 V control logic. Connecting a negative voltage to
pin 20 disables the internal negative voltage generator
and becomes the negative supply.
COMPETITIVE ADVANTAGE
The F2914 provides constant impedance in all RF ports
during transitions improving a system’s hot-switching
ruggedness. The device also supports high power
handling, and high isolation; particularly important for
DPD receiver use.
Constant impedance
K
K
|
|
Z
Z
|
|
during switching transition
RFX to RFC Isolation = 50 dB*
Insertion Loss = 1.1 dB*
IIP3: +61 dBm*
Extended temperature: -40 °C to +105 °C
* 4 GHz
APPLICATIONS
Base Station 2G, 3G, 4G
Portable Wireless
Repeaters and E911 systems
Digital Pre-Distortion
Point to Point Infrastructure
Public Safety Infrastructure
Military Systems, JTRS radios
Cable Infrastructure
Test / ATE Equipment
FEATURES
Four symmetric, absorptive RF ports
High Isolation: 50 dB @ 4000 MHz
Low Insertion Loss: 1.1 dB @ 4000 MHz
High linearity:
o IIP2 of 124 dBm @ 2000 MHz
o IIP3 of 61 dBm @ 4000 MHz
High Power Handling:
o 33 dBm CW on selected RF port
o 27 dBm on terminated ports
Single 3.0 V to 5.25 V supply voltage
External Negative Supply Option
3.3 V and 1.8 V compatible control logic
Operating temperature -40 °C to +105 °C
4 mm x 4 mm 24 pin QFN package
Pin compatible with competitors
FUNCTIONAL BLOCK DIAGRAM
Control
Circuit
RF4
RF2
RF1
V1 V2 V3
RFC
50Ω
50Ω
50Ω
RF3
50Ω
VSS
EXT
K
|Z|
ORDERING INFORMATION
