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PDF ALM-1222 Data sheet ( Hoja de datos )
| Número de pieza | ALM-1222 | |
| Descripción | High Linearity Balanced Amplifier Module | |
| Fabricantes | AVAGO | |
| Logotipo |  |
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ALM-1222
1.8-2.2GHz Low Noise, High Gain, High Linearity Bal-
anced Amplifier Module
Data Sheet
Description
Avago Technologies’ ALM-1222 is a very low noise, high
linearity balanced amplifier module operating in the 1.8
to 2.2GHz frequency range. The exceptional noise and
linearity performances are achieved through the use of
Avago Technologies’ proprietary 0.5um GaAs Enhance-
ment-mode pHEMT process.
The ALM-1222 is housed in a miniature 5.0 x 6.0 x 1.1
mm3 22-lead multiple-chips-on-board (MCOB) module
package. The compact footprint and low profile makes
this product an ideal choice for Wireless Infrastructure
Basestation Tower-Mounted Amplifiers (TMA), Radio-
cards and Multi-Carrier Driver Amplifiers in the cellular/
PCS/CDMA bands.
Component Image
5.0 x 6.0 x 1.1 mm3 22-lead MCOB
Top View
AVAGO
ALM-1222
MAYWWDD
XXXX
Bottom View
Note:
Package marking provides orienta-
tion and identification
“ALM-1222” = Device Part Number
“YWWDD” = Year, work week and
day of manufacture
“XXXX” = Assembly lot number
Features
• Low noise figure
• High linearity and P1dB
• GaAs E-pHEMT Technology[1]
• 50Ω internal matching
• Small package size: 5x6x1.1 mm3
• 5V supply
• Adjustable current for optimum NF or OIP3
• Excellent uniformity in product specifications
• Tape-and-Reel packaging option available
• MSL-2a and Lead-free
• Point MTTF > 300 years at 120oC channel tempera-
ture
• Shutdown function
• Specifications
• 2GHz; 5V, 280mA (typ) per section
• Vctrl typically at 2.3V
• 31 dB Gain
• 0.62 dB Noise Figure
• 43.7 dBm Output IP3
• 27.5 dBm Output Power at 1dB gain
compression
• 45dB Reverse Isolation
Applications
• Diversity Antenna, TMA & Front End LNA for EGSM/
PCS/W-CDMA Base Stations.
• Driver amplifier.
Notes:
1. Enhancement mode technology employs positive gate voltage,
thereby eliminating the need of negative gate voltage associated
with conventional depletion mode devices.
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 250 V
Refer to Avago Technologies Application Note A004R:
Electrostatic Discharge, Damage and Control.
1 page  
Balanced Amplifier Demo Board Layout
CSyirmcubitol
C1, C10
C2, C7
C3, C6
C4, C9
C5, C8
R1, R4
R2, R3
Coupler
Size
0805
0402
0402
0402
0402
0402
0402
14.m22mx52 .08
Description
2.2uF ceramic
Not used
0.1uF ceramic
Not used
0.1uF ceramic
Not used
49.9 ohms
Anaren Xinger II
XC1900E-03 or equiv
RF Input
Figure 7. Suggested Balanced Amplifier Demo Board Layout
Recommended PCB material is 10 mils Rogers RO4350.
Suggested component values may vary according to
layout and PCB material.
Balanced Demo Board Schematic
Ground
20-pin Connector
RF Output
Coupler
RF Input
R3
Module Outline
50-Ohms TL
C3 C5
1,22
21 20
19
C1
17,18
Bias
2 Input
Match
Interstage
Match
Output
Match
16
3,4 14,15
50-Ohms TL
5 Input
Match
6
7
C6
Interstage
Match
Output
Match
13
Bias 12
89
10
C8
11
C10
50-Ohms TL
50-Ohms TL
Coupler
R2
RF Output
Figure 8. Application Schematic for Balanced Amplifier
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ALM-1222.PDF ] | |
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