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PDF TQ3131 Data sheet ( Hoja de datos )
| Número de pieza | TQ3131 | |
| Descripción | 3V Cellular Band CDMA/AMPS LNA IC | |
| Fabricantes | TriQuint Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TQ3131 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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WIRELESS COMMUNICATIONS DIVISION
Control
Logic C2
GND
C2
L1
VDD
GND
TQ3131
DATA SHEET
3V Cellular Band
CDMA/AMPS LNA IC
RF RF 50 ohm
IN OUT RF Out
GND
C3
Control
Logic
Product Description
The TQ3131 is a 3V, RF LNA IC designed specifically for Cellular band CDMA/AMPS
applications. It’s RF performance meets the requirements of products designed to
the IS-95 and AMPS standards. The TQ3131 is designed to be used with the
TQ5131 (CDMA/AMPS mixer) which provides a complete CDMA receiver for
800MHz dual-mode phones.
The LNA incorporates on-chip switches which determine CDMA, AMPS, and bypass
mode select. When used with the TQ5131 (CDMA RFA/mixer), four gain states are
available. The RF output port is internally matched to 50 Ω, greatly simplifying the
design and keeping the number of external components to a minimum. The TQ3131
achieves good RF performance with low current consumption, supporting long
standby times in portable applications. Coupled with the very small SOT23-8
package, the part is ideally suited for Cellular band mobile phones.
Electrical Specifications1
Parameter
Frequency
Min Typ Max
832 894
Units
MHz
Gain 13.0 dB
Noise Figure
1.4 dB
Input 3rd Order Intercept
10.0 dBm
DC supply Current
10.5 mA
Note 1: Test Conditions: Vdd=2.8V, Tc=25C, RF frequency=881MHz, CDMA High Gain state.
Features
Small size: SOT23-8
Single 3V operation
Low-current operation
Gain Select
Mode Select
High IP3 performance
Few external components
Applications
IS-95 CDMA Mobile Phones
AMPS Mobile Phones
Dual Mode CDMA Cellular applications
832-870MHz CDMA applications
For additional information and latest specifications, see our website: www.triquint.com
1
1 page  
Application/Test Circuit
Control
Logic
L1
LNA input
C1
Lbrd
C2
GND
(paddle)
RF in
LNA
GND
TQ3131
Data Sheet
Vdd
Vdd
GND
R1
C2
RF
out
LNA output
C3 Control Logic
Bill of Material for TQ3131 LNA Application/Test Circuit
Component
Receiver IC
Capacitor
Capacitor
Resistor
Inductor
Inductor
Reference Designator
U1
C1
C2
R1
L1
Lbrd
Part Number
TQ3131
Value
3.3pFd
8.2pF
3.3Ω
15nH
See application note
Size
SOT23-8
0402
0402
0402
0402
Manufacturer
TriQuint Semiconductor
For additional information and latest specifications, see our website: www.triquint.com
5
5 Page 
TQ3131
Data Sheet
S22
TQ3131 Amps Mode S-Parameters S11
For additional information and latest specifications, see our website: www.triquint.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TQ3131.PDF ] | |
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