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MGA-675T6-TR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
4
5.5 GHz Tuned Demo Board Layout
RF OUTPUT
VDD
GND
VSHUTDOWN
R1
L2
J2
J1
C1
C2
C3
L1
C4
RF INPUT
Figure 4 . Demo Board Layout For 5.5 GHz operation
[1.2]
Notes:
1. Performance in a speci ed frequency band can be optimized by changing component values in the demo board
above to suit the application at that frequency.
2. Jumpers [J1,J2] indicated in the demo board are not needed in actual application board; this is because generic demo board were used for
development.
Demo Board Components
Components Value P/N Components Value P/N
J1,J2 0 ohm RK73Z1E000 (KOA) L1 1 nH LL1005-FHL1N0S (TOKO)
C1 2.4 pF Rohm L2 10 nH LL1005-FHL10NJ (TOKO)
C2 1.6 pF Rohm R1 51 ohm RK73B1ETTP (KOA)
C3 3 pF Kyocera C4 2pF Rohm
5
Figure 6. S21,S11,S22, S12 vs Frequency
456738
-60
-40
-20
0
-80
20
Freq (GHz)
dB
(S(1,2))
(S(2,1))
(S(1,1))
(S(2,2))
MGA-675T6 Typical Performance
T
A
= +25 C, Vdd = 3V, Ids = 10mA, RF measurement at 5.5 GHz, Input Signal = CW unless stated otherwise.
Figure 5. Demo Board Schematic Diagram
Notes:
1. The 0 Ohm resistors at the input are inductive, they are used as recommended matching elements in place of inductors. An alternative is to use
shunt transmission lines, but this method is much more repeatable.
2. L2 and R1 are used to isolate the LNA demoboard from external power supply variations. They may not be needed in actual applications.
3. C1, C2, C3 and L1 are input and output matching components.
1nH
bias/control
1
2
3
6
5
4
MGA-675T6
RFoutRFin
Vdd
Vshutdown
2.4pF
2pF
10nH
50
1.6pF
3pF
0 ohm
0 ohm
Open 50 ohm
Transmission
Line
C1
C2
L1
L2
R1
C3
6
-2
-1
0
1
2
3
4
5
4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6
Freq(GHz)
NF(dB)
5
7
9
11
13
15
17
19
21
23
25
4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6
Freq(GHz)
Gain(dB)
10
12
14
16
18
20
22
24
2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
Vdd(V)
Gain(dB)
-2
-1
0
1
2
3
4
5
2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
Vdd(V)
NF(dB)
2.7V
3V
3.3V
3.6V
2.7V
3V
3.3V
3.6V
25 Deg-C
-40 Deg-C
85 Deg-C
25 Deg-C
-40 Deg-C
85 Deg-C
Figure 7. Noise Figure vs Frequency vs Vdd Figure 8. Gain vs Frequency vs Vdd
Figure 9. Gain vs Vdd vs Temperature Figure 10. Noise Figure vs Vdd vs Temperature
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MGA-675T6-TR2G

Mfr. #:
Buy MGA-675T6-TR2G
Manufacturer:
Broadcom / Avago
Description:
RF Amplifier LNA for WLAN/WiMax
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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