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PDF RF2681 Data sheet ( Hoja de datos )
| Número de pieza | RF2681 | |
| Descripción | W-CDMA LINEAR VARIABLE GAIN DRIVER AMPLIFIER | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RF2681 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Preliminary
4
RF2681
W-CDMA LINEAR VARIABLE GAIN
DRIVER AMPLIFIER
Typical Applications
• PA Driver Amplifier for W-CDMA Handsets • General Purpose Driver Amplifier
Product Description
The RF2681 is a linear variable gain amplifier specifically
designed for PA driver applications in W-CDMA handsets.
The device maintains excellent linearity over a 30dB gain
control range, while providing a maximum of 26dB gain.
The IC is manufactured on an advanced Gallium Ars-
enide Heterojunction Bipolar Transistor Process and is
provided in an extremely small 3mmx3mm, 12-pin, lead-
less chip carrier.
0.80
0.65
1.00
0.85
0.60
0.24 typ
2
0.30
0.18
3.00
sq.
0.65
0.30
4 PLCS
10..2955sq.
12°
max
0.05
0.01
0.75
0.50
0.50
0.23
0.13
4 PLCS
Dimensions in mm.
NOTES:
1 Shaded Pin is Lead 1.
2 Dimension applies to plated terminal and is measured between 0.02 mm and
0.25 mm from terminal end.
3 Pin 1 identifier must exist on top surface of package by identification mark or
feature on the package body. Exact shape and size is optional.
4 Package Warpage: 0.05 mm max.
5 Die thickness allowable: 0.305 mm max.
Optimum Technology Matching® Applied
Si BJT
üGaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
12 11 10
VCC1 1
9 GND
VREG 2
8 GND
VCC2 3
7 GND
456
Package Style: LCC, 12-Pin, 3x3
Features
• 30dB Linear Gain Control Range
• 26dB Maximum Gain
• Single 2.7V to 3.3V Supply
• High Linearity Over Entire Gain Control
Range
• 9dBm Output Drive Available
Ordering Information
RF2681
W-CDMA Linear Variable Gain Driver Amplifier
RF2681 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
4
Rev A1 010824
4-43
1 page  
Preliminary
RF2681
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
J2
OUT
50 Ω µstrip
VCC
VGC
C9
3 pF
L2
10 nH
P1-1
VCC
VREG
R1
51 Ω
C2
47 nF
C3
47 nF
C1
47 nF
L3
2 nH
C8
47 nF
12 11 10
19
28
37
VCC
VENABLE
C10
1 uF
P1
1 VCC
2 GND
3 GND
CON3
C4
1 nF
P2-2
C11
1 uF
L4
2.2 nH
456
L1
3.6 nH
C5
47 nF
P2-1
P2
1 VGC
2 VCC ZLO
+ 3 GND
P2-4
4 VCC
C12 + CON4
1 uF
C6
3 pF
50 Ω µstrip
C13
1 uF
J1
RF IN
P3-1
P3
1 VCC ZHI
2 GND
P3-3
3 V ENABLE
C14 + CON3
1 uF
4
Rev A1 010824
4-47
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet RF2681.PDF ] | |
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