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PDF TQM8M9079 Data sheet ( Hoja de datos )
| Número de pieza | TQM8M9079 | |
| Descripción | 500-2700 MHz Variable Gain Amplifier | |
| Fabricantes | TriQuint Semiconductor | |
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Applications
• Wireless Infrastructure
• LTE / WCDMA / CDMA / EDGE
• PtP IF Gain Control
• General Purpose Wireless
TQM8M9079
500−2700 MHz Variable Gain Amplifier
Product Features
• Integrates Amp + VVA + Amp functionality
• 500−2700 MHz Bandwidth
• 38 dB Gain (max gain setting)
• 4.0 dB Noise Figure
• +16 dBm P1dB
• +29 dBm OIP3
• +5V Supply Voltage
• Low Current
20-pin 5x5 mm Leadless Package
Functional Block Diagram
VCC NC NC NC NC
20 19 18 17 16
Amp1 In 1
15 Amp2 Out / VDEV2
NC 2
Amp1
Amp 2
14 NC
Amp1 Out / VDEV1 3
13 Amp2 In
NC 4
VVA 12 NC
VVA In 5
6
NC
789
NC VCTRL NC
11 VVA Out
10
NC
General Description
The TQM8M9079 is an analog controlled variable gain
amplifier (VGA) which operates from 500 to 2700 MHz.
The VGA is able to provide broadband performance with
+29 dBm OIP3 and +16 dBm P1dB over a wide
frequency range while only consuming 95 mA current.
The TQM8M9079 integrates two broadband gain blocks
with a voltage variable attenuator. The three stages are
individually accessible via package I/O contacts. This
permits full flexibility to insert other components or filters
between the stages.
The TQM8M9079 is packaged in a RoHS-compliant,
compact 5x5 mm surface-mount leadless package.
Superior thermal design allows the product to have a
minimum MTTF rating of 1000 years at a mounting
temperature of +85° C.
Pin Configuration
Pin No.
Symbol
1 Amp1 In
2, 4, 6,
17, 18,
7, 9,
19
10,
12,
14,
16,
NC
(No
Connect)
3 Amp1 Out / VDEV1
5 VVA In
8 VCTRL
11 VVA Out
13 Amp2 In
15 Amp2 Out / VDEV2
20 Vcc
Backside Paddle
GND
Ordering Information
The TQM8M9079 is targeted for use in wireless infra-
structure, IF gain control in point-to-point applications,
and for general purpose wireless.
Part No.
TQM8M9079
Description
Variable Gain Amplifier
TQM8M9079-PCB 500−2700 MHz Evaluation Board
Standard T/R size = 2500 pieces on a 13” reel
Datasheet: Rev D 07-17-13
© 2013 TriQuint
- 1 of 8 -
Disclaimer: Subject to change without notice
www.triquint.com
1 page  
TQM8M9079
500−2700 MHz Variable Gain Amplifier
Detailed Device Description
The TQM8M9079 is a 50 Ω internally matched analog controlled variable gain amplifier (VGA) which operates from
500 to 2700 MHz. The amplifier module features the integration of a general purpose amplifier with high dynamic
range, a voltage variable attenuator (VVA), along with another general purpose amplifier as shown in the functional
diagram below. The VGA is able to provide broadband performance with +29 dBm OIP3 and +16 dBm P1dB over a
wide frequency range while only consuming 95 mA current. The three stages are individually accessible via package
I/O contacts. This permits full flexibility to insert other components or filters between the stages.
Functional Schematic Diagram
AMP 1
VVA
AMP 2
AMP1 / AMP2
AMP1 and AMP2 are general purpose high dynamic range in VGA module. The two amplifiers in the VGA are identical
and provide 20.3 dB gain, +15.7 dBm P1dB, +29.4 dBm OIP3 at 1.9 GHz while only drawing 45 mA current per
amplifier. The amplifiers are unconditionally stable at the pins of the module. External DC blocks are required that
prevent the flow of direct current without affecting the RF signal through the main transmission line path.
VVA (Voltage Variable Attenuator)
The VVA offers 31 dB of attenuation range while providing high linearity (+45 IIP3) over the entire attenuation range.
The external voltage source, VCTRL pin provides different analog voltages that set different attenuation states in the
module. 4.5Vctl represents the lowest attenuation state. As the voltage is decreased, the attenuation will increase. It
provides 2.6 dB insertion loss while drawing 2 mA supply current at 5V supply voltage. The typical control current is
around 4 mA. VVA is symmetric; therefore, either pin (pin7 or pin 10) can be as RF input or output. VVA input and
output ports are DC blocked internally to the module.
Chain Analysis Table
This table provides the typical performance of individual stages in the module as well as overall module performance.
Frequency = 1900 MHz.
Parameter
AMP1
VVA
AMP2
Overall Module
Units
Gain
20.3
−2.6
20.3
38
dB
NF
3.9 2.6 3.9
4.0 dB
OIP3
29.4 42 29.4
29.4
dBm
P1dB
15.7 22 15.7
15.7
dBm
Icc
45 6.0* 45
96 mA
Note: * 2mA VCC + 4 mA VCTRL
Datasheet: Rev D 07-17-13
© 2013 TriQuint
- 5 of 8 -
Disclaimer: Subject to change without notice
www.triquint.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TQM8M9079.PDF ] | |
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