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F0448 Datasheet

Dual Matched Broadband RF DVGA

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Dual Matched Broadband RF DVGA
3.4GHz to 3.8GHz
F0448
Datasheet
Description
The F0448 is a 3.4GHz to 3.8GHz dual RF digital variable gain
amplifier (DVGA) designed for use in receivers.
This dual RF DVGA provides two independent receiver channels
each with 13dB typical maximum gain and 6dB noise figure
designed to operate with a single +5V supply. For each channel,
gain control is split into three separate attenuators: DSA0, a single
6dB step using a single control pin; DSA1, a 23dB SPI-controlled
gain adjustment in 1dB steps; and DSA2, includes 18dB
attenuation in 6dB steps controlled using two control pins. The
F0448 offers +37dBm nominal output IP3 using 220mA total ICC.
This device is packaged in a 6 × 6 mm, 36-QFN with 50Ω single-
ended RF input and RF output impedances for ease of integration
into the signal-channel lineup for each of the two channels.
Competitive Advantage
High reliability
High linearity
Low DC current
Zero DistortionTM technology
GlitchFreeTM technology
Typical Applications
Multi-mode, Multi-carrier Receivers
PHS/PAS Base Stations
Distributed Antenna Systems
Digital Radio
Features
RF Frequency Range: 3.4GHz to 3.8GHz
Dual Channel RF amp and DSAs for Diversity / MIMO
Receivers
< 2dB overshoot between DSA transitions
13dB typical maximum gain at 3.6GHz
DSA0: Single 6dB coarse step
DSA1: 23dB total gain range in 1dB steps
DSA2: 18dB gain range in 6dB steps
+37dBm OIP3 at 3.6GHz
6dB Noise figure at 3.6GHz
+5V Supply voltage
ICC = 220mA
Independent standby: 7mA standby current
SPI interface for DSA1
1-bit control for DSA0
2-bit control for DSA2
50Ω input and output impedance
Internally matched
Temperature range: -40°C to +105°C
6 × 6 × 0.75 mm 36-QFN package
Block Diagram
F0448
DSA0A
DSA1A
RFIN_A
DATA
CSb
CLK
VCTRL0
VCTRL1
VCTRL2
STBY
RFIN_B
2
Deco de
2 Logic / Bias
2
2
2
6dB
6dB
23dB
23dB
DSA0B
DSA1B
RF AMP A
DSA2A
18dB
Glitch - Free TTMM
Zero - Distortion TTMM 18dB
RF AMP B
DSA2B
RFOUT_A
RFOUT_B
© 2018 Integrated Device Technology, Inc.
1
October 24, 2018


Integrated Device Technology Electronic Components Datasheet

F0448 Datasheet

Dual Matched Broadband RF DVGA

No Preview Available !

F0448 Datasheet
Contents
Pin Assignments....................................................................................................................................................................................................5
Pin Descriptions.....................................................................................................................................................................................................6
Absolute Maximum Ratings...................................................................................................................................................................................7
Recommended Operating Conditions ...................................................................................................................................................................7
Electrical Characteristics .......................................................................................................................................................................................8
Thermal Characteristics.......................................................................................................................................................................................11
Typical Operating Conditions (TOC) ...................................................................................................................................................................11
Typical Performance Characteristics...................................................................................................................................................................12
Programming .......................................................................................................................................................................................................18
Serial Control – DSA1 ................................................................................................................................................................................18
Parallel Control Mode – DSA0, DSA2, STBY......................................................................................................................................................21
Typical Application Circuit ...................................................................................................................................................................................22
Evaluation Kit Picture ..........................................................................................................................................................................................23
Evaluation Kit / Applications Circuit .....................................................................................................................................................................24
Evaluation Kit Operation......................................................................................................................................................................................26
Power Supply Setup ...................................................................................................................................................................................26
GND Jumpers.............................................................................................................................................................................................26
Standby (STBY) Pin ...................................................................................................................................................................................27
Serial Control..............................................................................................................................................................................................28
Parallel Control Pins ...................................................................................................................................................................................29
Power-On Procedure..................................................................................................................................................................................29
Power-Off Procedure..................................................................................................................................................................................29
Application Information ........................................................................................................................................................................................30
Power Supplies...........................................................................................................................................................................................30
RSET and RDSET......................................................................................................................................................................................30
Control Pin Interface...................................................................................................................................................................................30
Package Outline Drawings ..................................................................................................................................................................................31
Marking Diagram .................................................................................................................................................................................................31
Ordering Information............................................................................................................................................................................................31
Revision History...................................................................................................................................................................................................32
© 2018 Integrated Device Technology, Inc.
2
October 24, 2018


Part Number F0448
Description Dual Matched Broadband RF DVGA
Maker IDT
Total Page 30 Pages
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