ALM-1812
GPS Filter-LNA-Filter Front-End Module
Data Sheet
Description
Features
Avago Technologies’ ALM-1812 is a GPS front-end module
that combines a high-gain low-noise amplifier (LNA) with
GPS FBAR filters. 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’ leadingedge FBAR filter for exceptional rejection at Cell/PCS-Band
frequencies.
The low noise figure and high gain, coupled with low
current consumption make it suitable for use in critical lowpower GPS applications or during low-battery situations.
Very Low Noise Figure
Exceptional Cell/PCS-Band rejection
Low external component count
Fully-matched at RF input and RF output
Shutdown current: < 1 uA
CMOS compatible shutdown pin (SD)
ESD: > 3kV at RFin pin
4.5 x 2.2 x 0.95 mm3 size
Adjustable bias current via single
resistor/voltage
Lead-free, Halogen free and meets MSL3
Specifications (Typical performance @ 25°C)
Component Image
At 1.575GHz, Vdd = 2.8V, Idd = 6.8mA
Surface Mount 4.5 x 2.2 x 0.95 mm3 12-lead MCOB
Vsd
(pin 12)
NC (pin 1)
Gnd (pin 2)
RF in (pin 3)
NC
(pin 11)
Vdd
(pin 10)
NC (pin 9)
1812
YMXXXX
Gnd
(pin 4)
Gnd
(pin 5)
RF Out (pin 8)
NC (pin 7)
Gnd
(pin 6)
NC
(pin 11)
Gain = 19.1 dB
NF = 1.66 dB
IIP3 = +2 dBm, IP1dB = -8 dBm
S11 = -10 dB, S22 = -15 dB
Cell-Band Rejection: > 90dBc
PCS-Band Rejection: > 85dBc
Application
GPS Front-end Module
TOP VIEW
Vdd
(pin 10)
external
Vsd
(pin 12)
Application Circuit
NC (pin 9)
NC (pin 1)
RF Out (pin 8)
Gnd (pin 2)
NC (pin 7)
+Vdd = 2.8V
VBias
RF in (pin 3)
Gnd
(pin 6)
Gnd
(pin 5)
RBias
Gnd
(pin 4)
L
BOTTOM VIEW
RFin
Note:
Package marking provides orientation and identification
“1812” = Product Code
“Y”
= Year of manufacture
“M” = Month of manufacture
“XXXX” = Last 4 digit of lot number
RFout
Absolute Maximum Rating [1] TA = 25°C
Symbol
Parameter
Units
Absolute Max.
Vdd
Device Drain to Source Voltage[2]
V
3.6
Idd
Drain Current[2]
mA
15
Pin,max
CW RF Input Power
(Vdd = 2.8V, Idd = 6mA)
dBm
13
Pdiss
Total Power Dissipation[4]
mW
54
TL
Operating Temperature
°C
-40 to 85
Tj
Junction Temperature
°C
150
TSTG
Storage Temperature
°C
-65 to 150
Thermal Resistance [3]
(Vdd = 2.8 V, Idd = 6mA) jc = 82.1°C/W
Notes:
1. Operation of this device in excess of any of
these limits may cause permanent damage.
2. Assuming DC quiescent conditions.
3. Thermal resistance measured using Infra-Red
measurement technique.
4. Board (module belly) temperature TB is 25°C.
Derate 4.2 mW/°C for TB > 145.6°C.
Electrical Specifications
TA = 25°C, Freq = 1.575GHz, measured on demo board[1] unless otherwise specified – Typical Performance[1]
Table 1. Performance at Vdd = Vsd = 2.8V, Idd = 6.8mA (R2 = 3.9k Ohm, see Fig 1) nominal operating conditions
Symbol
Parameter and Test Condition
Units
Min.
Typ
Max.
G
Gain
dB
16.5
19.1
–
NF
Noise Figure
dB
–
1.66
2.3
IP1dB
Input 1dB Compressed Power
dBm
–
-8
–
IIP3[2]
Input 3rd Order Intercept Point (2-tone @ Fc +/- 2.5MHz)
dBm
–
+2
–
S11
Input Return Loss
dB
–
-10
–
S22
Output Return Loss
dB
–
-15
–
S12
Reverse Isolation
dB
–
-30
–
Cell Band Rejection
Relative to 1.575GHz @ 827.5MHz
dBc
78
96.6
–
PCS Band Rejection
Relative to 1.575GHz @ 1885MHz
dBc
78
91.7
–
IP1dB890MHz
Input 1dB gain compression interferer signal level at 890MHz
dBm
29
IP1dB1885MHz
Input 1dB gain compression interferer signal level at 1885MHz
dBm
Idd
Supply DC current at Shutdown (SD) voltage Vsd = 2.8V
mA
–
6.8
26
11.5
Ish
Shutdown Current @ VSD = 0V
uA
–
0.5
–
Table 2. Performance at Vdd = Vsd = 1.8V, Idd = 4mA (R2 = 3.9k Ohm, see Fig 1) nominal operating conditions
Symbol
Parameter and Test Condition
Units
Typ
G
Gain
dB
16.5
NF
Noise Figure
dB
1.9
IP1dB
Input 1dB Compressed Power
dBm
-11
IIP3[2]
Input 3rd Order Intercept Point (2-tone @ Fc +/- 2.5MHz)
dBm
-1
S11
Input Return Loss
dB
-9
S22
Output Return Loss
dB
-13
S12
Reverse Isolation
dB
-29
Cell Band Rejection
Relative to 1.575GHz @ 827.5MHz
dBc
>90
PCS Band Rejection
Relative to 1.575GHz @ 1885MHz
dBc
>85
IP1dB890MHz
Input 1dB gain compression interferer signal level at 890MHz
dBm
29
IP1dB1885MHz
Input 1dB gain compression interferer signal level at 1885MHz
dBm
26
Idd
Supply DC current at Shutdown (SD) voltage Vsd = 1.8V
mA
4
Ish
Shutdown Current @ VSD = 0V
uA
0.5
Notes:
1. Measurements at 1.575GHz obtained using schematic described in Figure 1 below.
2. 1.575GHz IIP3 test condition: FRF1 = 1572.5 MHz, FRF2 = 1577.5 MHz with input power of -20dBm per tone measured at the worst case side band.
2
1
GND
2
VDD
3
SD
GND
4
R1
L1
C2
C1
C3
RF Output
RF Input
L2
R2
RFIN
SD_SL2_55
RFOUT
Oct 2008
Avago
Technologies
MAM
DC Pin Configuration of 4-pin connector
Pins pointing
out of the page
1
2
3
4
Circuit
Symbol
Size
Description
L1
0402
22 nH Inductor (Taiyo Yuden HK100522NJ-T)
Pins 1, 4 = GND
Pin 2 = Vdd Supply
Pin 3 = Shutdown (SD)
L2
0402
1.5 nH Inductor (Taiyo Yuden HK10051N5S-T)
C1
0402
0.1 uF Capacitor (Kyocera CM05X5R104K10AH)
C2
0402
47 pF Capacitor (Kyocera CM05CH470J50AHF)
C3
0402
330 pF Capacitor (Kyocera CM05CH331J16AHF)
R1
0402
10 Ohms Resistor (KOA RK73B1ETTB100J )
R2
0402
3.9 kOhm Resistor (KOA RK73B1ETTB392J)
Figure 1. Demoboard and application circuit components table
3
Vdd (Pin 10)
L1
R1
C2
L2
C1
Vdd
50-Ohms TL
Filter
Filter
RFin
LNA
LNA
Filter
Filter
RFout
50-Ohms TL
Vsd
R2
Vsd (Pin 12)
C3
Figure 2. Demoboard and application schematic diagram
Notes
1. The module is fully matched at the input and output RF pins. The RFin pin is directly connected to a shunt inductor that is grounded. The RF output
filter blocks DC. Best noise performance is obtained using high-Q wirewound inductors. This circuit demonstrates that low noise figures are
obtainable with standard 0402 chip inductors.
2. C2 and L2 form a matching network that affects the frequency response and linearity of the LNA, these can be tuned to optimize gain and return
loss.
3. L1 and R1 isolates the demoboard from external disturbances during measurement. It is not needed in actual application. Likewise, C1 and C3
mitigate the effect of external noise pickup on the Vdd and Vsd lines respectively. These components are not required in actual operation.
4. Bias control is achieved by either varying the Vsd voltage with/ without R2, or fixing the Vsd voltage to Vdd and adjusting R2 for the desired
current.
4
10
20
5
0
0
-40
-5
PCS band
> 85 dBc
-10
-60
-15
-80
-120
0
0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6
Freq (GHz)
4
5
0
0
-10
-15
-25
-30
-120
0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6
Freq (GHz)
Figure 4a. Typical S-Parameter Plot @ Vdd = 1.8V, Idd = 4mA
5
-30
Gain (dB)
Input RL
Output RL
1.52
1.54
-40
1.56 1.58
Freq (GHz)
1.6
1.62
-50
1.64
20
10
0
0
-20
-10
-40
-20
-60
-30
-20
Gain (dB)
Input RL
Output RL
0
-60
4
Gain (dB)
Input RL
Output RL
-80
-40
-100
1.5
1.52
1.54
1.56 1.58
Freq (GHz)
1.6
1.62
-50
1.64
Figure 4b. Passband response of typical S-Parameter Plot @ Vdd = 1.8V,
Idd = 4mA
Return loss (dB)
-5
PCS band
> 85 dBc
-60
-100
-20
1.5
Return loss (dB)
Gain (dB)
20
-80
-40
Figure 3b. Passband response of typical S-Parameter Plot @ Vdd = 2.8V,
Idd = 6.8mA
10
-40
-10
-100
-30
40
Cell band
> 90 dBc
-20
-80
-25
Figure 3a. Typical S-Parameter Plot @ Vdd = 2.8V, Idd = 6.8mA
-20
0
-20
Gain (dB)
Input RL
Output RL
-100
0
Gain (dB)
Cell band
> 90 dBc
10
Return loss (dB)
-20
20
Gain (dB)
40
Return loss (dB)
Gain (dB)
ALM-1812 Typical Performance Curves at 25°
ALM-1812 Typical Performance Curves at 25°C, R2 = 3.9kOhm
14
9
Vdd=2.8V
Vdd=1.8V
12
8
7
6
8
Idd (mA)
Idd (mA)
10
6
5
4
3
4
2
2
0
1
0
5
10
15
20
25
Rbias (kohm)
30
35
0
40
Figure 5. Idd vs Rbias at 25°C
0
0.5
1
1.5
2
Vsd (V)
2.5
3
3.5
4
Figure 6. Idd vs Vsd for Vdd = 2.8V, R2 = 3.9k Ohm
3.0
9
8
7
2.5
NF (dB)
Idd (mA)
6
5
4
-40
25
85
2.0
3
1.5
2
1
0
0
0.5
1
1.5
2
Vsd (V)
2.5
3
3.5
4
Figure 7. Idd vs Vsd for Vdd = 1.8V, R2 = 3.9k Ohm
-40
25
85
NF (dB)
2.5
2.0
1.5
2
3
4
5
Figure 9. NF vs Idd at Vdd = 1.8V
6
6
7
Idd (mA)
2
3
4
5
Figure 8. NF vs. Idd at Vdd = 2.8V
3.0
1.0
1.0
8
9
10
11
6
7
Idd (mA)
8
9
10
11
22
22
20
20
18
18
Gain (dB)
Gain (dB)
ALM-1812 Typical Performance Curves at 25°C, R2 = 3.9kOhm (cont'd)
16
14
-40
25
85
2
3
4
12
5
6
7
Idd (mA)
8
9
10
10
11
Figure 10. Gain vs. Idd at Vdd = 2.8V
-90
-95
-100
5
6
7
Idd (mA)
8
9
10
11
-40
25
85
-85
-90
-95
-100
-105
-105
2
3
4
5
6
7
Idd (mA)
8
9
10
-110
11
Figure 12. Cell band rejection vs. Idd at Vdd = 2.8V
2
3
4
5
6
7
Idd (mA)
8
9
10
11
Figure 13. Cell band rejection vs. Idd at Vdd = 1.8V
-75
-75
-40
25
85
-85
-40
25
85
-80
PCS Band Rejection (dBc)
-80
PCS Band Rejection (dBc)
4
-80
Cell Band Rejection (dBc)
Cell Band Rejection (dBc)
-85
-90
-95
-100
-105
-110
3
-75
-40
25
85
-80
-110
2
Figure 11. Gain vs. Idd at Vdd = 1.8V
-75
-85
-90
-95
-100
-105
2
3
4
5
6
7
Idd (mA)
Figure 14. PCS band rejection vs. Idd at Vdd = 2.8V
7
16
14
12
10
-40
25
85
8
9
10
11
-110
2
3
4
5
6
7
Idd (mA)
Figure 15. PCS band rejection vs. Idd at Vdd = 1.8V
8
9
10
11
ALM-1812 Typical Performance Curves at 25°C, R2 = 3.9kOhm (cont'd)
-6
6
7mA
4
7mA
6mA
4mA
3mA
8mA
6mA
4mA
3mA
8mA
-10
-12
10mA
-14
2
IIP3 (dBm)
IP1dB (dBm)
-8
0
-2
-4
10mA
-6
-16
-18
-8
1.8
2.0
2.2
2.4
2.6
Vdd (V)
2.8
3.0
3.2
3.4
-10
1.8
2.0
2.2
2.4
2.6
2.8
Vdd (V)
3.0
3.2
Figure 16. IP1dB vs. Vdd at 25°C
Figure 17. IIP3 vs. Vdd at 25°C
Figure 18. Edwards-Sinsky Output Stability Factor (Mu) at Vdd = 2.8V
Figure 19. Edwards-Sinsky Input Stability Factor (Mu’) at Vdd = 2.8V
Figure 20. Edwards-Sinsky Output Stability Factor (Mu) at Vdd = 1.8V
Figure 21. Edwards-Sinsky Input Stability Factor (Mu) at Vdd = 1.8V
8
3.4
ALM-1812 Scattering Parameter and Measurement Reference Planes
R1
L1
C2
L2
C1
10
3
LNA
LNA
GPS FILTER
8
GPS FILTER
12
REFERENCE
PLANE
REFERENCE
PLANE
R2
MODULE
C3
Figure 22. Scattering parameter measurement reference planes
9
ALM-1812 Typical Scattering Parameters at 25°C, Vdd = 2.8V, Idd = 6.8mA
The S- and Noise Parameters are measured using a coplanar waveguide PCB with 10 mils Rogers RO4350. Figure 27
shows the input and output reference planes. The circuit values are as indicated in Figure 6.
Freq
(GHz)
S11
Mag. (dB)
S11
Ang.
S21
Mag. (dB)
S21
Ang.
S12
Mag. (dB)
S12
Ang.
S22
Mag. (dB)
S22
Ang.
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.8275
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.575
1.6
1.7
1.8
1.885
1.9
2.0
2.1
2.2
2.3
2.4
2.5
3.0
3.5
4.0
4.5
5.0
6.0
7.0
8.0
9.0
10.0
11.0
-0.36
-0.48
-0.61
-0.59
-0.56
-0.54
-0.51
-0.48
-0.47
-0.46
-0.45
-0.44
-0.44
-0.46
-0.51
-0.60
-2.15
-12.00
-0.95
-0.51
-0.57
-0.60
-0.61
-0.66
-0.70
-0.70
-0.69
-0.69
-0.69
-0.71
-0.69
-0.83
-1.07
-1.37
-3.36
-1.25
-1.50
-1.57
-2.49
-4.03
167.90
157.43
137.05
118.80
102.02
86.73
72.90
60.09
48.25
45.13
37.19
26.19
15.97
6.12
-4.06
-16.54
-39.74
-162.25
56.36
-13.71
-27.70
-36.23
-37.61
-46.35
-54.49
-62.05
-69.58
-76.98
-84.41
-118.39
-150.17
176.10
145.32
108.52
39.77
-20.47
-73.87
-129.61
-178.13
132.11
-70.91
-73.83
-75.70
-79.52
-80.81
-80.23
-84.40
-80.13
-77.24
-76.66
-74.69
-72.60
-71.50
-71.18
-70.88
-77.69
-52.92
18.44
-4.42
-77.00
-76.26
-84.37
-77.77
-62.56
-52.67
-49.53
-49.33
-49.47
-49.34
-48.63
-48.84
-54.58
-52.45
-36.63
-24.42
-39.38
-32.30
-30.13
-22.11
-18.89
179.43
90.22
-98.13
144.78
-93.44
173.99
-139.64
31.21
19.91
-1.05
-9.12
-22.11
-42.85
-53.20
-56.47
-86.33
178.08
157.76
-5.83
-145.33
-121.44
147.81
96.20
48.44
3.05
-43.62
-75.23
-93.88
-107.39
-151.44
171.67
125.18
-42.92
-103.59
135.12
-6.98
82.78
163.08
54.31
-75.98
-72.41
-72.95
-76.85
-78.22
-80.94
-81.68
-83.85
-84.39
-82.49
-81.84
-80.63
-83.78
-83.42
-84.42
-84.53
-78.22
-71.88
-30.80
-53.21
-80.55
-78.53
-71.90
-72.22
-70.83
-67.29
-64.95
-63.28
-62.60
-61.30
-56.60
-53.14
-50.85
-51.74
-57.19
-42.94
-53.09
-40.36
-27.18
-22.22
-20.13
-33.51
-44.37
143.01
18.52
-96.45
49.58
-22.49
104.85
140.19
-26.77
159.19
49.06
164.49
-64.80
28.25
-127.64
-163.04
116.58
-47.84
-115.70
-131.67
-132.40
-128.72
-128.36
-138.82
-149.31
-150.12
-160.56
-165.14
176.28
154.09
127.76
108.49
116.36
124.29
139.34
141.29
86.19
41.54
-111.40
-0.02
-0.02
-0.03
-0.03
-0.05
-0.07
-0.08
-0.10
-0.13
-0.13
-0.15
-0.17
-0.20
-0.23
-0.26
-0.30
-1.14
-7.66
-1.14
-0.32
-0.33
-0.34
-0.34
-0.35
-0.35
-0.36
-0.36
-0.36
-0.37
-0.37
-0.36
-0.41
-0.49
-0.71
-7.89
-0.95
-0.96
-1.65
-2.73
-3.60
-1.13
-2.30
-4.72
-7.15
-9.58
-12.00
-14.49
-17.07
-19.77
-20.53
-22.57
-25.01
-27.52
-31.01
-34.89
-40.11
-49.93
49.43
4.99
-35.94
-42.70
-46.60
-47.22
-51.19
-54.92
-58.43
-61.85
-65.19
-68.55
-83.99
-98.92
-115.73
-131.29
-153.16
89.52
178.08
135.38
118.05
71.53
82.03
12.0
-4.63
63.14
-29.16
-95.52
-35.45
-70.23
-2.13
53.32
13.0
-4.96
-64.89
-24.87
-131.78
-28.36
-120.38
-1.60
27.95
14.0
15.0
16.0
17.0
18.0
19.0
20.0
-3.23
-3.78
-5.51
-10.35
-4.30
-5.60
-3.34
-143.72
131.84
49.69
174.02
89.47
49.69
1.63
-24.81
-28.69
-21.18
-24.73
-26.34
-24.29
-21.00
158.49
146.44
55.22
-68.32
99.23
-38.15
178.45
-28.55
-29.29
-23.10
-27.84
-26.72
-25.85
-21.72
171.46
160.75
62.73
-66.54
92.85
-43.76
-176.08
-2.11
-2.96
-4.57
-4.47
-2.37
-4.27
-8.70
-5.53
-34.59
-100.39
107.18
28.83
-29.69
114.20
10
ALM-1812 Typical Scattering Parameters at 25°C, Vdd = 1.8V, Idd = 4mA
Freq
(GHz)
S11
Mag.
S11
Ang.
S21
Mag.
S21
Ang.
S12
Mag.
S12
Ang.
S22
Mag.
S22
Ang.
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.8275
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.575
1.6
1.7
1.8
1.885
1.9
2.0
2.1
2.2
2.3
2.4
2.5
3.0
3.5
4.0
4.5
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
-0.37
-0.49
-0.62
-0.60
-0.57
-0.55
-0.52
-0.49
-0.47
-0.46
-0.46
-0.44
-0.44
-0.47
-0.51
-0.60
-2.07
-11.07
-1.03
-0.52
-0.57
-0.61
-0.62
-0.67
-0.72
-0.71
-0.70
-0.70
-0.70
-0.72
-0.69
-0.84
-1.08
-1.37
-3.23
-1.29
-1.58
-1.98
-2.39
-3.68
-4.41
-5.02
-3.16
-3.76
-5.59
-10.67
-4.41
-5.90
-3.26
167.91
157.48
137.11
118.84
102.07
86.79
72.98
60.16
48.32
45.21
37.27
26.28
16.08
6.22
-3.92
-16.42
-39.34
-146.67
57.61
-13.37
-27.52
-36.04
-37.42
-46.25
-54.30
-61.83
-69.36
-76.80
-84.22
-118.09
-149.84
175.62
145.43
108.81
43.37
-20.01
-73.96
-129.44
-174.95
133.54
68.72
-56.19
-142.79
133.45
50.35
179.81
91.57
52.36
4.18
-70.39
-69.16
-76.73
-76.40
-79.44
-82.26
-81.51
-82.42
-81.13
-80.98
-77.14
-75.53
-74.01
-75.82
-74.62
-78.94
-54.42
16.10
-6.09
-75.43
-77.68
-79.90
-79.59
-65.59
-54.83
-51.92
-52.25
-52.26
-51.91
-50.59
-49.90
-53.88
-54.39
-39.20
-27.63
-42.97
-37.01
-24.67
-20.63
-19.84
-29.61
-25.13
-24.93
-28.24
-21.00
-24.58
-25.69
-24.25
-21.63
-97.32
-138.73
63.86
176.75
149.69
-11.94
153.55
40.14
4.95
20.28
-3.31
-6.38
-31.95
-51.00
-52.43
-94.19
173.14
157.09
-3.46
-141.27
-133.47
-164.72
150.62
57.67
2.11
-51.69
-82.45
-99.40
-111.81
-154.73
169.50
123.13
-10.94
-100.13
130.07
-39.94
61.20
117.64
41.58
-86.50
-94.04
-126.95
161.15
145.51
54.18
-71.53
96.10
-42.63
177.14
-69.97
-72.30
-73.74
-78.51
-80.33
-78.34
-82.35
-85.39
-80.01
-81.98
-79.31
-82.00
-81.92
-86.49
-82.08
-78.84
-70.76
-29.37
-51.01
-80.16
-75.83
-75.06
-73.21
-70.33
-67.29
-64.81
-63.37
-62.01
-61.19
-56.43
-53.05
-50.94
-51.69
-56.65
-43.36
-53.04
-39.13
-27.12
-23.81
-23.10
-34.87
-28.33
-28.26
-28.54
-22.58
-27.36
-26.34
-25.64
-22.08
-112.11
169.58
-156.90
129.65
-109.07
-150.44
-45.85
163.19
130.58
114.35
87.20
123.22
-13.35
-162.55
-66.69
-121.08
-152.73
109.49
-52.59
-92.38
-134.34
-137.96
-126.80
-133.91
-132.12
-146.54
-150.82
-157.87
-162.45
176.99
153.40
127.37
108.35
120.15
116.78
143.68
149.21
69.33
38.85
-107.44
-65.55
-111.80
178.99
162.38
64.69
-63.53
92.52
-45.43
-177.16
-0.02
-0.02
-0.03
-0.04
-0.05
-0.07
-0.09
-0.11
-0.13
-0.14
-0.15
-0.18
-0.20
-0.23
-0.26
-0.31
-1.07
-6.41
-1.20
-0.32
-0.33
-0.34
-0.34
-0.35
-0.36
-0.36
-0.37
-0.37
-0.37
-0.38
-0.36
-0.41
-0.49
-0.73
-6.93
-0.94
-1.03
-1.64
-2.93
-3.54
-2.20
-1.57
-2.04
-3.01
-4.55
-4.52
-2.40
-4.30
-8.61
-1.20
-2.34
-4.76
-7.16
-9.57
-12.01
-14.48
-17.06
-19.74
-20.51
-22.55
-25.00
-27.48
-30.95
-34.83
-40.01
-49.72
52.69
4.51
-35.70
-42.55
-46.47
-47.08
-51.03
-54.76
-58.27
-61.70
-65.02
-68.40
-83.94
-98.87
-115.93
-131.23
-153.35
78.08
178.58
135.81
116.29
71.46
83.40
54.36
29.96
-4.80
-34.28
-100.24
108.07
29.96
-28.21
114.98
11
ALM-1812 Typical Noise Parameters at 25°C, Freq = 1.575 GHz,
Vdd = 2.8V, Idd = 6.8mA
Freq
(GHz)
Fmin
(dB)
1.575
1.50
GAMMA OPT
Mag
Ang
Rn/50
0.24
-99
0.19
Part Number Ordering Information
Part Number
Qty
Container
ALM-1812-BLKG
100
Antistatic Bag
ALM-1812-TR1G
3000
13” Reel
ALM-1812 Typical Noise Parameters at 25°C, Freq = 1.575 GHz,
Vdd = 1.8V, Idd = 4mA
Freq
(GHz)
Fmin
(dB)
1.575
1.52
GAMMA OPT
Mag
Ang
Rn/50
0.24
-99
0.19
Notes:
• The exceptional noise figure performance of the ALM-1812 is due to
its highly optimized design. In this regard, the Fmin of the ALM-1812
shown above is locked down by the internal input pre-match. This
allows the use of relatively inexpensive chip inductors for external
matching.
Package Dimension
0.07
(all gaps)
0.60
4.50±0.10
1.1000
pitch
1.1000
pitch
0.4975-8x
PIN 1
1812
YMXXXX
0.3350-4x
2.20±0.10
0.8250-4x
pitch
0.95±0.10
SIDE VIEW
0.10-3x
0.1000
0.9875-8x
pitch
0.9875-6x
pitch
BOTTOM VIEW
Bottom Solder Mask
Note :
1. All dimensions are in milimeters
2. Dimensions are inclusive of plating
3. Dimensions are exclusive of mold flash and metal burr.
4. Y refer to year, M refer to month & XXXX refer to last 4 digit of lot number
12
0.8250-2x
pitch
0.70-3x
0.35sq-12x
0.1000
TOP VIEW
0.80-3x
PCB Land Patterns and Stencil Design
4.2650
0.9875-8x
4.30
0.9875-8x
0.35sq-12x
1.10-2x
0.3150sq-12x
1.10-2x
0.8250-4x
0.8250-4x
0.56-3x
0.70-3x
0.80-3x
0.64
Land Pattern
Stencils Opening
4.3000
4.2650
1.1000
0.9875
0.56
0.70
0.8250
0.3150sq
0.3500sq
0.64
0.80
Combined Land Pattern & Stencil Opening
Dimensions are in mm
Device Orientation
REEL
USER FEED DIRECTION
CARRIER
TAPE
USER
FEED
DIRECTION
13
1812
YMXXXX
1812
YMXXXX
TOP VIEW
COVER TAPE
1812
YMXXXX
END VIEW
Tape Dimensions
2.00±0.05
8.00±0.10
1.50±0.10
4.00±0.10
1.75±0.10
5.50±0.05
12.00
+0.30
-0.10
1.50+0.15
0.28±0.02
10° MAX
10° MAX
4.85±0.10
1.18±0.10
A.
All dimensions are in millimeters.
14
K.
2.55±0.10
B.
Reel Dimensions (13” reel)
11
12 1
2
3
4
0 2
10
9
7
6
5
DATE CODE
12MM
8
EMBOSSED LETTERING
16.0mm HEIGHT x MIN. 0.4mm THICK.
Ø329.0±1.0
HUB
Ø100.0±0.5
6
PS
02
12
12
10
911
876534
MP
N
CPN
EMBOSSED LETTERING
7.5mm HEIGHT
EMBOSSED LETTERING
7.5mm HEIGHT
1.5
(MI
N.)
FRONT VIEW
EMBOSSED LINE (2x)
89.0mm LENGTH LINES 147.0mm
AWAY FROM CENTER POINT
+0.5
-0.2
20.2(MIN.)
Ø13.0
11.9-15.4**
+2.0*
12.4
-0.0
Ø16.0
ESD LOGO
6
PS
RECYCLE LOGO
Detail "X"
SEE DETAIL "X"
Ø100.0±0.5
Ø329.0±1.0
6
PS
R19.0±0.5
BACK VIEW
SLOT
5.0±0.5(3x)
Ø12.3±0.5(3x)
For product information and a complete list of distributors, please go to our web site:
18.4 MAX.*
www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved.
AV02-2013EN - March 2, 2012