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Integrated Device Technology Electronic Components Datasheet

F1456 Datasheet

TX Digital VGA

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T
TX Digital VGA
2100 MHz to 2950 MHz
F1456
Datasheet
Description
The F1456 is a High Gain / High Linearity 2100 MHz to 2950 MHz
TX Digital Variable Gain Amplifier used in transmitter applications.
The F1456 TX DVGA provides 32.1 dB maximum gain with
+38 dBm OIP3 and 3.9 dB noise figure. Up to 31.5 dB gain
control is achieved using the combination of a digital step
attenuator (DSA) and a KLINTM RF Digital Gain Amplifier. This
device uses a single 5 V supply and 215 mA of ICC.
This device is packaged in a 6 mm x 6 mm, 28-pin QFN with 50 Ω
single-ended RF input and RF output impedances for ease of
integration into the signal-path.
Competitive Advantage
In typical Base Stations, RF VGAs are used in the TX traffic paths
to drive the transmit power amplifier. The F1456 TX DVGA offers
very high reliability due to its construction from a monolithic silicon
die in a QFN package. The F1456 is configured to provide an
optimum balance of noise and linearity performance consisting of
a KLINTM RF amplifier, digital step attenuator (DSA) and a PA
driver amplifier. The KLINTM amplifier maintains the OIP3 and
output P1dB performance over an extended attenuation range
when compared to competitive devices.
Typical Applications
Multi-mode, Multi-carrier Transmitters
WiMAX and LTE Base Stations
UMTS/WCDMA 3G Base Stations
PHS/PAS Base Stations
Public Safety Infrastructure
Features
Broadband 2100 MHz to 2950 MHz
32.1 dB max gain
3.9 dB NF @ max gain (2650 MHz)
31.5 dB total gain control range, 0.5 dB step
< 2 dB overshoot between gain transitions
Maintains flat +21.5 dBm OP1dB for more than 13 dB gain
adjustment range
Maintains flat +38 dBm OIP3 for more than 15 dB gain
adjustment range
SPI interface for DSA control
Single 5 V supply voltage
ICC = 215 mA
Up to +105 °C TCASE operating temperature
50 Ω input and output impedance
Standby mode for power savings
Pin compatible 700 MHz and 2100 MHz versions
6 mm x 6 mm, 28-pin QFN package
Block Diagram
Figure 1. Block Diagram
KLIN
Constant
High LinearityTM
KLINTM DVGA
DSA
PA Driver
RF IN
RF OUT
SPI &
Decoder
6 mmx 6 mm
28-pin
3
Digital CTL
Bias
/STBY
© 2016 Integrated Device Technology, Inc
1
November 9, 2016


Integrated Device Technology Electronic Components Datasheet

F1456 Datasheet

TX Digital VGA

No Preview Available !

Pin Assignments
Figure 2. Pin Assignments for 6 mm x 6 mm x 0.9 mm QFN Package Top View
F1456 Datasheet
CSb 1
DATA 2
CLK 3
RSET 4
GND 5
RFIN 6
GND 7
F1456
Exposed Pad
(GND)
21 GND
20 NC
19 NC
18 NC
17 GND
16 RFOUT
15 GND
© 2016 Integrated Device Technology, Inc
2
November 9, 2016


Part Number F1456
Description TX Digital VGA
Maker IDT
PDF Download

F1456 Datasheet PDF






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