TQM879006A
Applications
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1.4-2.7GHz ¼ W Digital Variable Gain Amplifier
3G / 4G Wireless Infrastructure
CDMA, TD-CDMA, WCDMA, LTE
Repeaters
PTP Radio IF Chains
28-pin 6x6mm leadless SMT package
Product Features
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1.4-2.7 GHz Frequency Range
31.7 dB Maximum Gain at 2 GHz
31.5 dB Gain Range in 0.5 dB Steps
+43 dBm Output IP3
+24.5 dBm Output P1dB
1.5 dB Noise Figure at Max. Gain State
Fully Internally Matched Module
Integrated Blocking Capacitors, Bias Inductors
3-wire SPI Control Programming
Functional Block Diagram
General Description
The TQM879006A is a digital variable gain amplifier
(DVGA) featuring high linearity over the entire gain
control range. The amplifier module features the
integration of a low noise amplifier gain block, a digital-
step attenuator (DSA), along with a high linearity ¼W
amplifier. The module has the added features of
integrating all matching components with bias chokes
and blocking capacitors. The internal DSA offers 0.5
dB step, 6-bit, and 31.5 dB range and is controlled with
TM
a serial periphery interface (SPI ).
The TQM879006A features variable gain from 0 dB to
31.7 dB at 2 GHz, has +43 dBm Output IP3, and +24.5
dBm P1dB. The amplifier also has a very low 1.5 dB
Noise Figure (at maximum gain) allowing it to be an
ideal DVGA for both receiver and transmitter
applications. The amplifier operates from a single +5V
supply and is available in a compact 28-pin 6x6 mm
leadless SMT package.
Pin Configuration
Pin #
1
2
3
4, 22
6
8
Symbol
LE
DATA
CLK
NC
RFIN
VCC_AMP1
VCC_AMP2
RFOUT
VCC_SPI
GND
14
16
28
All Other Pins
Ordering Information
Part No.
TQM879006A
1.4-2.7 GHz Digital Variable Gain Amp
Fully Assembled Evaluation Board
TQM879006A-PCB
Includes USB control board (EVH)
Standard T/R size = 2500 pieces on a 7” reel.
Description
Data Sheet: Rev P 10/19/12
© 2012 TriQuint Semiconductor, Inc.
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Disclaimer: Subject to change without notice
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