ASB ALN1765AT

plerowTM ALN1765AT
Internally Matched LNA Module
Features
Description
· S21 = 17.7 dB @ 1740 MHz
= 17.3 dB @ 1790 MHz
· NF of 0.7 dB over Frequency
· Unconditionally Stable
· Single 5V Supply
· High OIP3 @ Low Current
The plerowTM ALN-series is the compactly designed surface-mount
module for the use of the LNA with or without the following gain blocks in
the infrastructure equipment of the mobile wireless (CDMA, GSM, PCS,
PHS, WCDMA, DMB, WLAN, WiBro, WiMAX), GPS, satellite communication terminals, CATV and so on. It has an exceptional performance of
low noise figure, high gain, high OIP3, and low bias current. The stability
factor is always kept more than unity over the application band in order
to ensure its unconditionally stable implementation to the application
system environment. The surface-mount module package including the
completed matching circuit and other components necessary just in case
allows very simple and convenient implementation onto the system
board in mass production level.
Specifications (in Production)
Typ. @ T = 25°C, Vs = 5 V, Freq. =1765 MHz, Zo.sys = 50 ohm
Parameter
Frequency Range
Unit
Min
MHz
1740
Gain
dB
16.5
Gain Flatness
dB
Noise Figure (NF)
Output IP3
S11 / S22
(1)
(2)
Typ
Max
1790
17.5
dB
dBm
1-stage Single Type
Specifications
30
± 0.2
± 0.3
0.7
0.75
More Information
Website: www.asb.co.kr
E-mail: [email protected]
31
dB
Tel: (82) 42-528-7223
Fax: (82) 42-528-7222
-18 / -10
Output P1dB
dBm
17
18
Switching Time
µsec
Supply Current
mA
Supply Voltage
V
5
Impedance
Ω
50
60
ASB Inc., 4th Fl. Venture Town
Bldg., 367-17 Goijeong-Dong,
Seo-Gu, Daejon 302-716, Korea
80
Max. RF Input Power
dBm
C.W 29 ~ 31 (before fail)
Package Type & Size
mm
Surface Mount Type, 10Wx10Lx3.8H
Operating temperature is -40°C to +85°C.
1) OIP3 is measured with two tones at an output power of 4 dBm / tone separated by 1 MHz.
2) S11/S22 (max) is the worst value within the frequency band.
3) Switching time means the time that takes for output power to get stabilized to its final level after switching DC voltage from 0 V to VS.
Outline Drawing (Unit: mm)
plerow
ALN1765AT
ASB Inc.
(Top View)
Pin Number
Function
2
RF In
5
RF Out
6
Vs
Others
Ground
(Bottom View)
Note: 1. The number and size of ground via holes in
a circuit board is critical for thermal RF
grounding considerations.
2. We recommend that the ground via holes be
placed on the bottom of all ground pins for
better RF and thermal performance, as
shown in the drawing at the left side.
Solder Stencil Area
(Side View)
Ø0.4 plated thru holes to ground plane
(Recommended Footprint)
1/4
www.asb.co.kr
March 2009
plerowTM ALN1765AT
Internally Matched LNA Module
S-parameters
Typical Performance
(Measured)
1740~1790
+5 V
2/4
S-parameters & K Factor
Noise Figure
OIP3
P1dB
www.asb.co.kr
March 2009
plerowTM ALN1765AT
Internally Matched LNA Module
RF Performance with Voltage Change
1. S-parameter
1739 MHz
1755 MHz
1770 MHz
S21 (dB)
S11 (dB)
S22 (dB)
S21 (dB)
G/F (dB)
S11 (dB)
S22 (dB)
S21 (dB)
S11 (dB)
S22 (dB)
4.50 V
17.44
-19.68
-10.45
17.34
0.21
-20.59-
-10.50
17.23
-21.92
-10.45
4.75 V
17.50
-21.11
-10.78
17.39
0.22
-22.12
-10.85
17.28
-23.56
-10.83
5.00 V
17.52
-21.70
-10.42
17.40
0.22
-22.70
-10.49
17.30
-24.22
-10.45
5.25 V
17.53
-21.59
-10.26
17.39
0.22
-22.80
-10.32
17.31
-24.56
-10.31
5.50 V
17.55
-22.47
-10.20
17.39
0.23
-23.80
-10.29
17.32
-25.67
-10.28
2. OIP3, P1dB & NF
1739 MHz
1755 MHz
1770 MHz
OIP3 (dBm)
P1dB (dBm)
NF (dB)
OIP3 (dBm)
P1dB (dBm)
NF (dB)
OIP3 (dBm)
P1dB (dBm)
NF (dB)
4.50 V
33.19
17.88
0.687
33.07
17.92
0.668
33.13
17.85
0.715
4.75 V
32.12
18.32
0.684
31.85
18.35
0.693
32.41
18.32
0.710
5.00 V
31.37
18.76
0.705
31.07
18.77
0.703
31.58
18.73
0.749
5.25 V
30.78
19.11
0.723
30.48
19.11
0.729
30.77
19.09
0.745
5.50 V
30.15
19.44
0.730
29.86
19.47
0.743
30.00
19.43
0.750
Note: tested at room temperature.
RF Performance with Operating Temperature
1. S-parameter
1739 MHz
1755 MHz
1770 MHz
S21 (dB)
S11 (dB)
S22 (dB)
S21 (dB)
G/F (dB)
S11 (dB)
S22 (dB)
S21 (dB)
S11 (dB)
S22 (dB)
-45 °C
18.86
-21.56
-12.29
18.78
0.30
-22.80
-12.12
18.56
-21.94
-12.29
-10 °C
18.67
-21.38
-12.61
18.54
0.30
-22.13
-12.72
18.37
-21.40
-12.68
25 °C
18.45
-21.71
-12.42
18.30
0.31
-22.72
-12.28
18.14
-21.53
-12.50
60 °C
18.26
-21.31
-12.25
18.15
0.31
-21.86
-12.24
18.95
-21.13
-12.49
85 °C
18.10
-21.20
-12.00
17.99
0.32
-21.19
-11.95
17.78
-21.12
-12.06
2. OIP3, P1dB & NF
1739 MHz
1755 MHz
1770 MHz
OIP3 (dBm)
P1dB (dBm)
NF (dB)
OIP3 (dBm)
P1dB (dBm)
NF (dB)
OIP3 (dBm)
P1dB (dBm)
NF (dB)
-45 °C
31.44
19.21
0.460
31.58
18.99
0.494
31.45
19.05
0.470
-10 °C
32.14
18.99
0.577
32.47
18.88
0.570
32.45
18.95
0.586
25 °C
31.91
18.85
0.717
32.11
18.67
0.731
32.14
18.84
0.713
60 °C
31.76
18.25
0.908
31.98
18.30
0.898
32.04
18.44
0.922
85 °C
31.64
17.62
1.031
31.89
17.76
1.035
31.93
17.96
1.054
Note: tested at Vs= 5V.
3/4
www.asb.co.kr
March 2009
plerowTM ALN1765AT
Internally Matched LNA Module
Application Circuit
VS
+
-
Tantal or MLC (Multi Layer Ceramic)
Capacitor
(Mandatory)
C1
C4 = 100pF
C2
ALN
IN
OUT
C3 = 0.5pF
(Mandatory)
1)
The tantal or MLC (Multi Layer Ceramic) capacitor is optional and for bypassing the AC noise introduced
from the DC supply. The capacitance value may be determined by customer’s DC supply status. The capacitor should be placed as close as possible to Vs pin and be connected directly to the ground plane for
the best electrical performance.
2)
DC blocking capacitors are always necessarily placed at the input and output port for allowing only the
RF signal to pass and blocking the DC component in the signal. The DC blocking capacitors are included inside the ALN module. Therefore, C1 & C2 capacitors may not be necessary, but can be added
just in case that the customer wants. The value of C1 & C2 is determined by considering the application
frequency. C3 and C4 in the blue dot line circle shall be used for matching.
Evaluation Board Layout
Recommended Soldering Reflow Process
Vs
20~40 sec
260°C
Ramp-up
(3˚C/sec)
200°C
Ramp-down
(6°C/sec)
IN
OUT
150°C
60~180 sec
4/4
Size 25x25mm
(for ALN-AT, BT, T Series – 10x10mm)
www.asb.co.kr
March 2009