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PDF RF2878 Data sheet ( Hoja de datos )
| Número de pieza | RF2878 | |
| Descripción | 3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RF2878 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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RF2878
0
RoHS Compliant & Pb-Free Product
Typical Applications
3V LOW NOISE AMPLIFIER/
3V PA DRIVER AMPLIFIER
• TDMA/CDMA/FM Cellular PCS LNA
• Low Noise Transmit Driver Amplifier
• General Purpose Amplification
• Commercial and Consumer Systems
Product Description
The RF2878 is a low noise amplifier with a very high
dynamic range designed for digital cellular applications.
The device functions as an outstanding front end low
noise amplifier or power amplifier driver amplifier in the
transmit chain of digital subscriber units where low trans-
mit noise power is a concern. When used as an LNA, the
bias current can be set externally. When used as a PA
driver, the IC can operate directly from a single cell Li-ion
battery and includes a power down feature that can be
used to completely turn off the device. The IC is featured
in a standard SOT 5-lead plastic package.
NOTE: The RF2878 is a Pb-free product. If a non-Pb-free
product with the same functionality and package is
desired, please see the RF2361.
1.60
+ 0.01
2.90
+ 0.10 0.950
1
0.400
0.15
0.05
3° MAX
0° MIN
2.80
+ 0.20
0.127
0.45
+ 0.10
1.44
1.04
Dimensions in mm.
Optimum Technology Matching® Applied
Si BJT
9GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
InGaP/HBT
GaN HEMT
SiGe Bi-CMOS
RF IN 1
GND1 2
5 GND2
Package Style: SOT 5-Lead
Features
• Low Noise and High Intercept Point
• Adjustable Bias Current
• Power Down Control
• Single 2.5V to 6.0V Power Supply
• 150MHz to 2500MHz Operation
• Extremely Small SOT 5-Lead Package
VPD 3
4 RF OUT
Functional Block Diagram
Ordering Information
RF2878
3V Low Noise Amplifier/ 3V PA Driver Amplifier
RF2878 PCBA-D Fully Assembled Evaluation Board (Driver)
RF2878 PCBA-L Fully Assembled Evaluation Board (LNA)
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A0 060206
4-331
1 page  
RF2878
Application Schematic:
Low Noise Amplifier ~881MHz Operation
J1
RF IN
22 nF
1
5
VPD
2
1k Ω
10 nF 100 pF
3
2 pF
4
12 nH
J2
RF OUT
VCC
100 pF 10 nF
Application Schematic:
Low Noise Amplifier ~1950MHz Operation
J1
RF IN
22 nF
1
5
VPD
1k Ω
10 nF 100 pF
2
3
1 pF
4
3.3 nH
J2
RF OUT
VCC
100 pF 10 nF
Rev A0 060206
4-335
5 Page 
RF2878
PCB Design Requirements
PCB Surface Finish
The PCB surface finish used for RFMD's qualification process is electroless nickel, immersion gold. Typical thickness is
3μinch to 8μinch gold over 180μinch nickel.
PCB Land Pattern Recommendation
PCB land patterns for RFMD components are based on IPC-7351 standards and RFMD empirical data. The pad pattern
shown has been developed and tested for optimized assembly at RFMD. The PCB land pattern has been developed to
accommodate lead and package tolerances. Since surface mount processes vary from company to company, careful
process development is recommended.
PCB Metal Land Pattern
Pin 1
A = 0.70 x 1.00 (mm) Typ.
Dimensions in mm.
Pin 5
AA
0.95 Typ.
A 1.90 Typ.
AA
Figure 1. PCB Metal Land Pattern (Top View)
2.60
Rev A0 060206
4-341
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet RF2878.PDF ] | |
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