ASB ALN2046AT Internally matched lna module Datasheet

plerowTM ALN2046AT
Internally Matched LNA Module
Features
Description
· S21 = 15.7 dB @ 1920 MHz
· S21 = 15.2 dB @ 2045 MHz
= 14.7 dB @ 2170 MHz
· NF of 0.7 dB over Frequency
· NF of 0.7 dB over Frequency
· Unconditionally Stable
· Unconditionally Stable
· Single 5V Supply
· Single 5V Supply
· High OIP3 at Low Current
· High OIP3 @ Low Current
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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. = 2045 MHz, Zo.sys = 50 ohm
Parameter
Unit
Frequency Range
1-stage Single Type
Specifications
Min
MHz
1920
Gain
dB
14.2
Gain Flatness
dB
Typ
Max
2170
15.2
 0.5
 0.7
0.7
0.75
Noise Figure
dB
Output IP3 (1)
dBm
S11 / S22 (2)
dB
Output P1dB
dBm
Switching Time
sec
-
Supply Current
mA
65
Supply Voltage
V
5
Impedance

50
33
More Information
Website: www.asb.co.kr
E-mail: [email protected]
34
Tel: (82) 42-528-7223
Fax: (82) 42-528-7222
-15 / -10
17
18
75
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 7 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
ALN2046AT
ASB Inc.
(Top View)
(Bottom View)
Pin Number
Function
2
RF In
5
RF Out
6
+Vcc
Others
Ground
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)
Ø 0.4 plated thru holes to ground plane
(Recommended Footprint)
1/3
www.asb.co.kr
November 2008
plerowTM ALN2046AT
Internally Matched LNA Module
S-parameters
0
17
16
S11, S22, S12 [dB]
-5
1920~2170 MHz
15
S21
-10
14
13
S22
-15
12
11
S11
-20
10
S21 [dB]
Typical Performance
(Measured)
9
S12
+5 V
-25
8
7
6
-30
5
1920 1940 1960 1980 2000 2020 2040 2060 2080 2100 2120 2140 2160
Frequency [MHz]
S-parameters & K Factor
30
10
20
S21
10
9
8
0
S11
-10
7
6
S12
-20
5
-30
S22
4
-40
3
-50
2
-60
1
-70
0
500
1000
1500
2000
2500
3000
Stability Factor K
S-parameter [dB]
Noise Figure
0
3500
Frequency [MHz]
OIP3
2/3
P1dB
www.asb.co.kr
November 2008
plerowTM ALN2046AT
Internally Matched LNA Module
Application Circuit
V DC
+
-
Tantal
Capacitor
IN
OUT
ALN
C1
C2
1) The tantal 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.
2) So-called 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 LNA 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.
Recommended Soldering Reflow Process
Evaluation Board Layout
+Vcc
20~40 sec
260C
Ramp-up
(3˚C/sec)
Ramp-down
(6C/sec)
IN
OUT
200C
150C
60~180 sec
Size 25 x 25mm
(for ALN-AT, BT, T Series – 10x10mm)
3/3
www.asb.co.kr
November 2008