TQM879026 Datasheet, PDF (1/8 Pages) TriQuint Semiconductor – 0.7−4 GHz ¼W Digital Variable Gain Amplifier

TQM879026
0.7−4 GHz ¼W Digital Variable Gain Amplifier
Applications
 3G / 4G Wireless Infrastructure
 CDMA, WCDMA, LTE
 Repeaters
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
 +42.5 dBm Output IP3
 +24 dBm Output P1dB
 1.6 dB Noise Figure
 3-wire SPI Control Programming
General Description
The TQM879026 is a digital variable gain amplifier
(DVGA) featuring high linearity and digital variable gain
control in 0.5 dB step sizes. This DVGA integrates a
gain block, a digital-step attenuator (DSA), and a high
linearity ¼-watt amplifier into a compact 4x4 mm
package. The internal 6-bit DSA provides a 31.5 dB
gain control range 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 TQM879026 features variable gain from 1 dB to
32 dB at 2.14 GHz, +42.5 dBm output IP3, and +24
dBm P1dB while only consuming 176 mA current from
a 5V supply. The module is available in a compact 24-
pin 4x4 mm leadless SMT package.
4x4 mm 24 Pin leadless SMT Package
Functional Block Diagram
Pin 1 Marking
NC 1
NC 2
DSA In 3
NC 4
Amp1 Out / V_CC1 5
NC 6
DSA
6-BIT
SPI
18 NC
17 NC
16 Amp2 Out / V_CC2
15 LE
14 SID
13 CLK
Backside Paddle
RF/DC GND
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
Symbol
NC (No Connect)
DSA In
Amp1 Out / Vcc1
Amp1 In
SOD
VDD
CLK
SID
LE
Amp2 Out / Vcc2
Amp2 In
DSA Out
RF/DC Ground
Data Sheet: Rev B 12/14/2012
© 2012 TriQuint Semiconductor, Inc.
Ordering Information
Part No.
Description
TQM879026
¼ W 0.7-4.0 GHz DVGA
TQM879026-PCB2140
2140 MHz Evaluation Board
Includes USB control board
Standard T/R size = 2500 pieces on a 13” reel
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Disclaimer: Subject to change without notice
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