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Número de pieza | RF2486 | |
Descripción | PCS LOW NOISE AMPLIFIER/MIXER | |
Fabricantes | RF Micro Devices | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de RF2486 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! RF2486
8 PCS LOW NOISE AMPLIFIER/MIXER
Typical Applications
• CDMA/TDMA/DCS1900 PCS Systems
• PHS 1500/WLAN 2400 Systems
• General Purpose Downconverter
• Micro-Cell PCS Base Stations
• Portable Battery-Powered Equipment
Product Description
The RF2486 is a monolithic integrated receiver front-end
for PCS, PHS, and WLAN applications. The IC contains
all of the required components to implement the RF func-
tions of the receiver front-end except for the passive filter-
ing and LO generation. It contains an LNA (low-noise
amplifiers), a double-balanced Gilbert cell mixer, a bal-
anced IF output, an LO isolation buffer amplifier, and an
LO output buffer amplifier for providing the buffered LO
signal as an output. The IC is designed to operate from a
single 3.6V power supply.
0.157
0.150
1
0.344
0.337
0.2440
0.2284
8°MAX
0°MIN
0.012
0.008
0.025
0.0098
0.0040
0.0688
0.0532
Optimum Technology Matching® Applied
Si BJT
üSi Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
NC 1
VCC1 2
VCC2 3
GND1 4
LNA IN 5
GND2 6
GND3 7
NC 8
GND4 9
VCC3 10
LO BUFF EN 11
LO IN 12
24 NC
23 GND9
22 VCC4
21 GND8
20 LNA OUT
19 GND7
18 MIX RF IN
17 GND6
16 IF-
15 IF+
14 GND5
13 LO BUFF OUT
Functional Block Diagram
0.050 0.0098
0.016 0.0075
Package Style: SSOP-24
Features
• Complete Receiver Front-End
• High Dynamic Range
• Single 3.6V Power Supply
• External LNA IP3 Adjustment
• 1500MHz to 2500MHz Operation
Ordering Information
RF2486
PCS Low Noise Amplifier/Mixer
RF2486 PCBA-L Fully Assembled Evaluation Board 1.96GHz
RF2486 PCBA-H Fully Assembled Evaluation Board 2.4GHz
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
8
Rev A7 010717
8-105
1 page RF2486
Evaluation Board Schematic
1.96GHz, 210MHz IF
(Download Bill of Materials from www.rfmd.com.)
VCC
VCC
C10
1 nF
C5
22 pF
J1
LNA2 IN
50 Ω µstrip
C18
22 pF
**See Notes**
50 Ω µstrip
C12
22 pF
VCC
C6
1 nF
BUFF EN
J2
LO IN
R1
1 kΩ
C14
1 nF
50 Ω µstrip
C7
22 pF
1
2
3
4
5
6
7
8
9
10
11
12
2486400-
R2*
SAT
C3
22 pF
24 **See Notes**
C4 C1a
23
1.5 pF
50 Ω µstrip
22 pF
50 Ω µstrip
22 C1*
22 pF
21 L1
2.7 nH
FL1*
20
19
50 Ω µs trip
18
17
16
15
14
C2*
22 pF
C2a
22 pF
C16
100 pF
C17
100 pF
50 Ω µs trip
**See Notes**
T1
L5
220 nH
TOKO
C8
5 pF
C11
L4
1.0 pF 47 nH
13
L3 L2
470 nH 470 nH
50 Ω µs trip
VCC
Gnd
*C om ponents not norm ally populated.
NOTES:
C11 selected to fine tune L4 for IF output match at 210 MHz.
R2 is norm ally not populated. For applications requiring additional LN A IP3, see the data sheet for
recom m ended resistance values.
C1a and C 2a are norm ally not populated. If C 1a and C2a are populated, the LNA and m ixer can be
tested independently. In this case, C 1 and C 2 should be rem oved.
To use the part w ith onboard filter, do not populate C 1a, and C 2a.
Use C1 and C2 instead. This w ill allow cascaded operation only.
C13
1 nF
C9
22 pF
+ C15
4.7 uF
BUFFER ENABLE
VCC
P1
1
2
3
J6
LNA OUT
J5
M IXE R IN
J4
IF OUT
J3
LO OUT
VCC
8
Rev A7 010717
8-109
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet RF2486.PDF ] |
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