F2480 Datasheet, PDF (1/34 Pages) Integrated Device Technology – Broadband RF Analog VGA 400 to 3000 MHz

Broadband RF Analog VGA
400 to 3000 MHz
F2480
Datasheet
Description
The F2480 is a 400 to 3000 MHz RF Analog Variable Gain
Amplifier (AVGA) that can be used in receivers, transmitters and
other applications. Either the amplifier or voltage variable
attenuator (VVA) can be configured as the first stage in the
cascade.
The F2480 RF AVGA provides 12dB typical maximum cascade
gain (no attenuation) with 4.3dB noise figure (amplifier as first
stage) and 36dB gain adjustment designed to operate with a
single +5V supply. Nominally, the amplifier offers +41.5dBm
output IP3 using 106mA of ICC.
This device is packaged in a 5 x 5 mm, 32-pin TQFN with 50
single-ended RF input and RF output impedances for ease of
integration into the signal-path lineup.
Competitive Advantage
The F2480 RF AVGA provides very high-performance by
combining a silicon VVA & a Zero-Distortion™ RF amplifier in a
single, compact TQFN package. Because of the superb VVA IP3
performance over its full attenuation range, the VVA can be
placed after the amplifier while yielding the desired cascaded
OIP3 performance. Utilizing IDT’s technology, the resultant RF
AVGA provides +41.5dBm OIP3 performance at 900MHz. The
device is internally matched so there is no need to optimize
external matching elements.
Typical Applications
Multi-mode, Multi-carrier Receivers
PCS1900 Base Stations
DCS1800 Base Stations
WiMAX and LTE Base Stations
UMTS/WCDMA 3G Base Stations
PHS/PAS Base Stations
Point to Point Infrastructure
Public Safety Infrastructure
Broadband Repeaters
GPS Receivers
Distributed Antenna Systems
Cable Infrastructure
Digital Radio
Features
400 to 3000 MHz (Amplifier Range)
50 to 6000 MHz (Attenuator Range)
12dB typical cascaded max gain
36dB continuous gain range
Excellent linearity +41.5dBm OIP3
Noise Figure 4.3dB
ICC = 106mA
1.2mA Amplifier Standby Current
Bi-directional attenuator RF ports
Positive amplifier gain slope vs. frequency to counteract
system PCB loss.
VMODE pin allows either positive or negative attenuation control
response
Linear-in-dB attenuation characteristic
4 RF Port pinout supporting multiple lineup configurations
50Ω input and output impedances
Broadband, Internally Matched
5 x 5 mm, 32-pin TQFN package
Block Diagram
Figure 1. Block Diagram
RFAMP_OUT ATTN_RF1
RFAMP_IN
Band_Select
STBY
V_CC
I_BIAS
2
Bias
Control
Zero-Distortion^TMM
V_CTRL
VMODE
ATTN_RF2
© 2017 Integrated Device Technology, Inc.
1
March 23, 2017