F0440
Dual Matched Broadband RF
DVGA 450MHz to 2700MHz
Datasheet
Description
Features
This document describes the specifications for the F0440
450MHz to 2700MHz Dual RF Digital Variable Gain Amplifier
designed for use in receivers.
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Dual Path RF amp & DSAs for Diversity / MIMO Receivers
RF: 450MHz to 2700MHz
< 2dB overshoot between DSA transitions
11.6dB typical max gain @ 900MHz
DSA0 is a single 6dB coarse step
DSA1 has 23dB total gain range in 1dB steps
DSA2 has 18dB gain range in 6dB steps
+41dBm OIP3 @ 2000MHz
4.7dB Noise Figure @ 900MHz
+5V Supply Voltage
ICC = 245mA
F0440 Dual RF DVGA provides two independent receiver paths
each with 11.6dB typical maximum gain and 4.7dB noise figure in
the low-band configuration designed to operate with a single +5V
supply. For each path Gain control is split into 3 separate
attenuators; DSA0 is a single 6dB step using a single control pin,
DSA1 includes 23dB SPI-controlled gain adjustment in 1dB steps,
and DSA2 includes 18dB attenuation in 6dB steps controlled
using two control pins. F0440 offers +40dBm nominal output IP3
using 245mA total ICC.
Independent standby: 7mA standby current
SPI interface for DSA1
1-bit control for DSA0
This device is packaged in a 6mm x 6mm, 36-pin TQFN with 50
ohm single-ended RF input and RF output impedances for ease
of integration into the signal-path lineup for each of the two paths.
2-bit control for DSA2
Competitive Advantage
50 Ω input and output impedance
Broadband, Internally Matched
6mm x 6mm, 36-pin TQFN package
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High Reliability
High Linearity
Low DC current
Zero DistortionTM technology
GlitchFreeTM technology
Block Diagram
Figure 1. Block Diagram
Typical Applications
F0440
6dB
23dB
18dB
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Multi-mode, Multi-carrier Receivers
PCS1900 Base Stations
RFOUT_A
RFIN_A
SPI Data
SPI CSb
DSA0
DSA1
DSA2
RF AMP
DCS1800 Base Stations
2
SPI CLK
Decode
Logic / Bias
WiMAX and LTE Base Stations
UMTS/WCDMA 3G Base Stations
PHS/PAS Base Stations
Distributed Antenna Systems
Digital Radio
VCTRL0
VCTRL1
VCTRL2
2
2
2
2
STBY
RFIN_B
RFOUT_B
6mm x 6mm
Table 1. Typical Band Performance Summary
RF Frequency (MHz)
900
2000
2700
Max Gain (dB)
NF @ max gain (dB)
OIP3 @ max gain (dBm)
OP1dB @ max gain (dBm)
DC current (mA)
11.6
4.7
+40
+20.2
245
11.4
4.9
+41
+19.8
245
11.6
5.2
+38
+18.9
245
Power Dissipation (mW)
1225
1225
1225
© 2020 Renesas Electronics Corporation
1
August 13, 2020