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PDF ALM-3012 Data sheet ( Hoja de datos )
| Número de pieza | ALM-3012 | |
| Descripción | GNSS LNA-Filter Front-End Module | |
| Fabricantes | AVAGO | |
| Logotipo |  |
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ALM-3012
GNSS LNA-Filter Front-End Module
with optional Differential Outputs
Data Sheet
Description
Avago Technologies’ ALM-3012 is an ultra low-noise
GNSS (Global Navigation Satellite System) front-end
module that combines a low-noise amplifier (LNA) with
a GNSS FBAR post-LNA filter, supporting both GPS and
GLONASS operating in 1565 ~ 1606 MHz frequency range.
The module can be used both as a single-ended and
pre-matched differential outputs. The LNA uses Avago
Technologies’ proprietary GaAs Enhancement-mode
pHEMT process to achieve high gain with very low noise
figure and high linearity. Noise figure distribution is very
tightly controlled. A CMOS-compatible shutdown pin
is included either for turning the LNA on/off, or for
current adjustment. The integrated filter utilizes an Avago
Technologies’ leading-edge FBAR filter for exceptional
rejection at Cellular, DCS, PCS and WLAN band frequen-
cies. Bypass functionality with an external RF switch is
possible with separate RF switching.
The ALM-3012 is usable down to 1.8 V operation. It
achieves low noise figures and high gain even at 1.8 V,
making it suitable for use in critical low power GNSS band
applications.
Component Image
Surface Mount (2.5 x 2.0 x 0.90) mm3 8-lead MCOB
Vdd (pin 1)
RFin (pin 2)
Gnd (pin 3)
Gnd (pin 8)
AVAGO
3012
MYWDXX
Gnd (pin 4)
Vsd (pin 7)
RFOut (pin 6)
RFOut+ (pin 5)
Vsd (pin 7)
RFOut (pin 6)
RFOut+ (pin 5)
TOP VIEW
Gnd (pin 8)
Gnd (pin 4)
BOTTOM VIEW
Vdd (pin 1)
RFin (pin 2)
Gnd (pin 3)
Note:
Package marking provides
orientation and identification
“3012” = Product Code
“M” = Manufacturing
location
“Y” = Year of manufacture
“D” = Date Code
“W” = Work week
“XX” = Last four digit of lot
number
Features
Very Low Noise Figure: 0.97 dB typ.
Exceptional Cell/DCS/PCS/WLAN-Band rejection
Advanced GaAs E-pHEMT & FBAR Technology
Shutdown current : < 1 A
CMOS compatible shutdown pin (SD)
ESD : > 3 kV at RFin pin
0.90 mm typ. package thickness
Adjustable bias current via single control voltage pin
Small package dimension: 2.5(L) x 2.0(W) x 0.9(H) mm3
Meets MSL3, Lead-free and halogen free
Specifications (Typical performance at 25° C)
At 1.575 GHz, Vdd = 2.7 V, Idd = 6.2 mA
Gain = 17.2 dB
NF = 0.97 dB
IIP3 = 0d Bm, IP1dB = -8 dBm
S11 = -8 dB, S22 = -13 dB
Rejection at 824 – 915 MHz: 73 dBc
Rejection at 1710 – 1785 MHz: 64 dBc
Rejection at 1850 – 1910 MHz: 72 dBc
Rejection at 2400 – 2570 MHz: 74 dBc
Application
GNSS Front-end Module
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 250 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
1 page  
Electrical Specifications
TA = 25° C, Freq = 1.575 GHz and 1.6017 GHz, measured on differential output board as in Figure 12.
Table 1. Performance at Vdd = Vsd = 2.7 V, Idd = 6.2 mA (R2 = 3.3 kOhm) nominal operating conditions
Symbol
Passband Performance
G[1]
NF[2]
IP1dB
IIP3[3]
S11
S22 / S33
S12
CMRR
Idd
Ish
Out of Band Performance
B5/CDMA/GSM850/B8/
GSM900 Rejection
B3/GSM1700 Rejection
B2/CDMA1900/
GSM1900 Rejection
ISM/WiMax Rejection
IP1dB915MHz
IP1dB1710MHz
IP1dB1850MHz
IP1dB2400MHz
OOB IIP2[4]
OOB IIP3[5]
H2788MHz[6]
Parameter and Test Condition
Unit
Gain
Noise Figure
Input 1dB Compressed Power
Input 3rd Order Intercept Point
(2-tone at Fc +/- 2.5MHz)
Input Return Loss
Output Return Loss (RFOut+/RFOut-)
Reverse Isolation
Common mode rejection ratio
Supply DC current at Shutdown (SD) voltage
Vsd = 2.7 V
Shutdown Current at Vsd = 0 V
dB
dB
dBm
dBm
dB
dB
dB
dB
mA
A
Worst-case relative to 1.575GHz within
(824-915) MHz band, tested at 915 MHz
Worst-case relative to 1.575GHz within
(1710-1785) MHz band, tested at 1710 MHz
Worst-case relative to 1.575GHz within
(1850-1910) MHz band, tested at 1850 MHz
Worst-case relative to 1.575GHz within
(2400-2570) MHz band, tested at 2400 MHz
Input 1dB gain compression interferer
signal level at 915 MHz
Input 1dB gain compression interferer
signal level at 1710 MHz
Input 1dB gain compression interferer
signal level at 1850 MHz
Input 1dB gain compression interferer
signal level at 2400 MHz
Out of Band Input 2nd Order Intercept Point
(2-tone at 824.6 MHz and 2400 MHz)
Out of Band Input 3rd Order Intercept Point
(2-tone at 1712.7 MHz and 1850 MHz)
2nd Harmonics of signal at 788 MHz
dBc
dBc
dBc
dBc
dBm
dBm
dBm
dBm
dBm
dBm
dBm
At 1.575 GHz
Min. Typ. Max.
15 17.2 19
– 0.97 1.4
– -8 –
–0–
– -8 –
– -13 –
– -30 –
25 32 –
– 6.2 10
– 0.5 –
67 73.1 –
50 63.5 –
58 71.6 –
63 73.6 –
– -5 –
– -12 –
– -8 –
–3–
– 12 –
– 23 –
– -34 –
At 1.6017 GHz
Min. Typ. Max.
13 15.8 18
– 1.08 1.5
– -8 –
–0–
– -8
– -8
– -31
25 33
––
–
–
–
–
–
–––
–––
–––
–––
–––
–––
–––
–––
–––
–––
–––
–––
5
5 Page 
10
8
6
4
2
0
-2
-4
-6
-8
-10
1.55 1.56 1.57 1.58 1.59 1.60 1.61 1.62 1.63
freq, GHz
Figure 16. Amplitude difference between RFout+ and RFout- ports
180
135
90
45
0
-45
-90
-135
-180
1.55 1.56 1.57 1.58 1.59 1.60 1.61 1.62 1.63
freq, GHz
Figure 17. Phase difference between RFout+ and RFout- ports
50
45
40
35
30
25
20
15
10
5
0
1.55 1.56 1.57 1.58 1.59 1.60 1.61 1.62 1.63
freq, GHz
Figure 18. Common-mode rejection ratio
12
11
10
9
8
7
6
5
4
3
2
1
0
0 5 10 15 20 25 30 35 40 45 50
RBias (kohm)
Figure 19. Idd vs R2
-6
3 mA 4 mA
-7 6 mA 7 mA
-8 8 mA 10 mA
-9
-10
-11
-12
-13
-14
1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4
Vdd (V)
Figure 20. IP1dB vs. Vdd. Measurements made with RFout- port terminated
with 50 ohm load to ground
6
3 mA 4 mA
4 6 mA 7 mA
8 mA 10 mA
2
0
-2
-4
-6
-8
-10
1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4
Vdd (V)
Figure 21. IIP3 vs. Vdd. Measurements made with RFout- port terminated
with 50 ohm load to ground
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet ALM-3012.PDF ] | |
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