F2923 Datasheet, PDF (1/21 Pages) Integrated Device Technology – Constant Impedance Kz SP2T RF Switch

Constant Impedance K_|Z| SP2T RF Switch
GENERAL DESCRIPTION
The F2923 is a low insertion loss 50Ω SP2T absorptive
RF Switch designed for a multitude of wireless and
other RF applications. This device covers a broad
frequency range from 300 kHz to 8000 MHz. In
addition to providing low insertion loss, industry
leading isolation at 2 GHz and excellent linearity, the
F2923 also includes a patent pending constant
impedance (K_Z) feature. K_Z 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 F2923 uses a single positive supply voltage of
3.3 V supporting three states using either 3.3 V or
1.8 V control logic. An added feature includes a
ModeCTL pin allowing the user to control the device
with either 1-pin or 2-pin control.
COMPETITIVE ADVANTAGE
The F2923 provides constant impedance on all ports
during transitions without compromising isolation,
linearity, or insertion loss.
Constant impedance K_|Z| during switching transition
VSWR RF_Com port 1.4:1 vs. 9:1 for Standard Switch
Insertion Loss = 0.48 dB*
IIP3: +66 dBm*
RF1/RF2 to RF_COM Isolation = 74 dB*
Extended temperature: -55 °C to +105 °C
Negative supply voltage not required
*2 GHz
APPLICATIONS
• Base Station 2G, 3G, 4G
• Portable Wireless
• Repeaters and E911 systems
• Digital Pre-Distortion
• Point to Point Infrastructure
• Public Safety Infrastructure
• WIMAX Receivers and Transmitters
• Military Systems, JTRS radios
• RFID handheld and portable readers
• Cable Infrastructure
• Wireless LAN
• Test / ATE Equipment
F2923
Datasheet
300 kHz to 8000 MHz
FEATURES
• Constant Impedance K_|Z| during transition
• Very low insertion loss: 0.48 dB @ 2 GHz
• High Input IP3: 66 dB @ 2 GHz
• RF1/RF2 to RF_Com Isolation: 74 dB @ 2 GHz
• 1-pin or 2-pin device control option
• Low DC current: 127 µA using 3.3 V logic
• Supply voltage: 3.3 V
• Supports 1.8 V and 3.3 V control logic
• Extended temperature: -55 °C to +105 °C
• 4 mm x 4 mm, 20-pin TQFN package
• Pin compatible with F2912
FUNCTIONAL BLOCK DIAGRAM
Mode CTL
CTL Pins
RF1
50Ω
50Ω
50Ω
RF2
RF_COM
ORDERING INFORMATION
F2923NCGI8
RF Product Line
Green
Tape &
Reel
F2923, Rev O 11/9/2015
1
© 2015 Integrated Device Technology, Inc.