F2914 Datasheet, PDF (1/19 Pages) Integrated Device Technology – High Reliability SP4T RF Switch

High Reliability SP4T RF Switch
GENERAL DESCRIPTION
The F2914 is a high reliability, low insertion loss, 50 Ω
SP4T absorptive RF switch designed for a multitude of
RF applications including wireless communications.
This device covers a broad frequency range from
50 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 input 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_|Z| during switching transition
RFX to RFC Isolation = 50 dB*
Insertion Loss = 1.1 dB*
IIP3: +60 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
F2914
Datasheet
50 MHz to 8000 MHz
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 114 dBm @ 2000 MHz
o IIP3 of 60 dBm @ 4000 MHz
• High Operating Power Handling:
o 33 dBm CW on selected RF port
o 27 dBm on terminated ports
• Single 2.7 V to 5.5 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
RFC
K_|Z|
RF4
50Ω
RF1
50Ω
RF3
50Ω
Control
Circuit
RF2
50Ω
VSS_EXT V1 V2 V3
ORDERING INFORMATION
F2914NBGK8
Tape
& Reel
Green
F2914, Rev O 03/01/2016
1
© 2016 Integrated Device Technology, Inc.