TQM879028 Datasheet, PDF (1/8 Pages) TriQuint Semiconductor – 0.7.4.0 GHz ½ W Digital Variable Gain Amplifier

TQM879028
0.7−4.0 GHz ½ W Digital Variable Gain Amplifier
Applications
 3G / 4G Wireless Infrastructure
 Repeaters
 LTE / WCDMA / CDMA
Product Features
 0.7−4.0 GHz Frequency Range
 32 dB Maximum Gain at 2.14 GHz
 31.5 dB Gain Range in 0.5 dB Steps
 +44 dBm Output IP3
 +27.5 dBm Output P1dB
 3-wire SPI Control Programming
24 Pin 4x4 mm Leadless SMT Package
Functional Block Diagram
Pin 1 Marking
NC 1
NC 2
DSA In 3
NC 4
Amp1 Out / Vcc 5
NC 6
DSA
6-BIT
SPI
18 NC
17 NC
16 Amp2 Out / Vcc
15 LE
14 DATA
13 CLK
Backside Paddle
RF/DC GND
General Description
The TQM879028 is a digital variable gain amplifier
(DVGA) featuring high linearity over the entire gain
control range. This amplifier module integrates a gain
block, a digital-step attenuator (DSA), and a high
linearity ½ Watt amplifier into a compact 4x4 mm
module. The internal 6-bit DSA provides a 31.5 dB gain
control range in 0.5 dB steps, and is controlled with a
serial periphery interface (SPI^TM). The individual stages
are accessible to external ports to allow for optimization
of the last stage amplifier for individual bands and also
allowing other functional blocks to be added in-between
the stages.
The TQM879028 features variable gain from 0.5 dB to
32 dB at 2.14 GHz, +44 dBm output IP3, and +27.5 dBm
P1dB while only consuming 230 mA current from a 5V
supply. The module is available in a compact 24-pin 4x4
mm leadless SMT package.
Pin Configuration
Pin No.
1, 2, 4, 6, 7, 9, 11, 17,
18, 19, 21, 22, 24
3
5
8
10
12
13
14
15
16
20
23
Backside Paddle
Label
NC (No Connect)
DSA In
Amp1 Out / Vcc
Amp1 In
SOD
VDD
CLK
DATA
LE
Amp2 Out / Vcc
Amp2 In
DSA Out
RF/DC Ground
Ordering Information
Part No.
Description
TQM879028
0.5 W 0.7−4.0 GHz DVGA
TQM879028-PCB2140
2.14 GHz Eval Board
(Includes EVH control board)
Standard T/R size = 2500 pieces on a 13” reel.
Datasheet: Rev C 3/22/13
© 2013 TriQuint
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