IDTF2255NLGK Datasheet, PDF (1/24 Pages) Integrated Device Technology – Voltage Variable RF Attenuator

Voltage Variable RF Attenuator
GENERAL DESCRIPTION
The IDTF2255 is a low insertion loss Voltage Variable
RF Attenuator (VVA) designed for a multitude of
wireless and other RF applications. This device covers
a broad frequency range from 1MHz to 3000MHz. In
addition to providing low insertion loss, the IDTF2255
provides excellent linearity performance over its entire
voltage control and attenuation range.
The F2255 uses a single positive supply voltage of
3.15V to 5.25V. Other features include the V_MODE pin
allowing either positive or negative voltage control
slope vs attenuation and multi-directional operation
meaning the RF input can be applied to either RF1 or
RF2 pins. Control voltage ranges from 0V to 3.6V
using either positive or negative control voltage slope.
COMPETITIVE ADVANTAGE
IDTF2255 provides extremely low insertion loss and
superb IP3, IP2, Return Loss and Slope Linearity across
the control range. Comparing to competitive VVAs this
device is better as follows:
Operation down to 1MHz
Insertion Loss @ 500MHz: 1.1dB
Maximum Attenuation Slope: 33dB/Volt
Minimum Output IP3: 35dBm
Minimum Input IP2: 74dBm
High Operating Temperature: +105°C
APPLICATIONS
• Base Station 2G, 3G, 4G,
• Portable Wireless
• Repeaters and E911 systems
• Digital Pre-Distortion
• Point to Point Infrastructure
• Public Safety Infrastructure
• Satellite Receivers and Modems
• WIMAX Receivers and Transmitters
• Military Radios covering HF, VHF, UHF
• RFID handheld and portable readers
• Cable Infrastructure
• Wireless LAN
• Test / ATE Equipment
IDTF2255NLGK
Datasheet
1MHz to 3000MHz
FEATURES
• Low Insertion Loss: 1.1dB @ 500MHz
• Typical / Min IIP3: 60dBm / 46dBm
• Typical / Min IIP2: 98dBm / 74dBm
• 33dB Attenuation Range
• Bi-directional RF ports
• +36dBm Input P1dB compression
• V_MODE pin allows either positive or negative
control response
• Linear-in-dB attenuation characteristic
• Supply voltage: 3.15V to 5.25V
• V_CTRL range: 0V to 3.6V using 5V supply
• +105°C max operating temperature
• 3x3, 16-pin QFN package
DEVICE BLOCK DIAGRAM
ORDERING INFORMATION
Omit IDT
prefix
0.9 mm height
package
Tape &
Reel
IDTF2255NLGK8
RF product Line
Green
PART# MATRIX
Part#
F2250
F2255
F2258
RF Freq Range
(MHz)
50 - 6000
1 - 3000
50 - 6000
Insertion Loss
(dB)
1.4 (at 2GHz)
1.1 (at 500MHz)
1.4 (at 2GHz)
IIP3
(dBm)
+65
+60
+65
Pinout
Compatibility
RFMD
Hittite
Voltage Variable RF Attenuator
1
REV O, July 2015