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MGA-638P8-TR1G

P1-P3P4-P6P7-P9P10-P12P13-P14
4
Demo Board Layout
Figure 5. Demo Board Layout Diagram
Demo Board Schematic
Figure 6. Demo Board Schematic Diagram
Table 1. Component list for 2.5 GHz matching
Part Size Value Detail Part Number
C1 0402 1.8 pF (Murata) GRM1555C1H1R8CB01D
C2 0402 100 pF (Murata) GRM1555C1H101JD01D
C5, C6, C7, C8 0603
4.7 F (Murata)
GRM188R60J475KE19D
C3, C4 0402 Not Used
L1 0402 8.2 nH (Toko) LLP1005-FH8N2C
L2 0402 5.6 nH (Toko) LLP1005-FH5N6C
L3 0402 1.8 nH (Toko) LLP1005-FH1N8C
Rb 0402 680 ohm (Rohm) MCR004YZPJ680
R1 0402 51 ohm (Rohm) MCR004YZPJ510
R2 0402 0 ohm (Rohm) MCR01MZPJ000
Notes:
C1, C2 are DC blocking capacitors
C1, L1, L3 input match for NF
L2 output match for IP3
C5, C6, C7, C8 are bypass capacitors
R1 is a stabilizing resistor
Rb is the biasing resistor
– Recommended PCB material is 10 mils Rogers RO4350.
– Suggested component values may vary according to
layout and PCB material.
Notes:
The schematic is shown with the assumption that similar PCB is used
for all MGA-636P8, MGA-637P8 and MGA-638P8.
Detail of the components needed for this product is shown in Table 1.
Truth Table
V
PwrDwn
(V)
LNA Mode 0 or open
Power Down Mode 3.3
Rb
C7
C4
C6
C8
C5
R1
C3
L2L1
Vdd
PwrDwn
Vbias1
Avago
Technologies
BTS LNA
Nov 2010
RFin RFout
C1 C2
L3
RFin
Bias
RFout
L2
L1
R1
C2
[5]
[Vbias1]
[6]
[PwrDwn]
[7]
[RFoutput]
[8]
[NU]
[4]
[NU]
[3]
[Vbias2]
[2]
[RFinput]
[1]
[NU]
R2
C6
C7
C3
C4
C5
Rb
C1
L3
Vbias1
C8
PwrDwn
Vdd
5
Typical Performance
RF performance at T
A
= 25° C, Vdd = 4.8 V, Idd = 84 mA, measured using 50 ohm input and output board unless stated
otherwise. IIP3 test condition: F
RF1
-F
RF2
= 1 MHz with input power of -10 dBm per tone.
Figure 7. Fmin vs Idd at 4.8 V at 2.5 GHz Figure 8. Fmin vs Idd at 4.8 V at 2 GHz
Figure 9. Gain vs Idd at 4.8 V Tuned for Optimum IIP3 and Fmin at 2.5 GHz Figure 10. Gain vs Idd at 4.8 V Tuned for Optimum IIP3 and Fmin at 2 GHz
Figure 11. IIP3 vs Idd at 4.8 V Tuned for Optimum IIP3 and Fmin at 2.5 GHz Figure 12. IIP3 vs Idd at 4.8 V Tuned for Optimum IIP3 and Fmin at 2 GHz
0.3
0.4
0.5
0.6
0.7
0.8
0.9
60 80 84 90 100
Idd (mA)
Fmin (dB)
0.3
0.4
0.5
0.6
0.7
0.8
0.9
60 80 84 90 100
Idd (mA)
Fmin (dB)
0
2
4
6
8
10
12
14
16
18
20
22
60 80 84 90 100
Idd (mA)
Gain(dB)
0
2
4
6
8
10
12
14
16
18
20
22
60 80 84 90 100
Idd (mA)
Gain(dB)
0
5
10
15
20
25
30
35
60 80 84 90 100
Idd (mA)
IIP3 (dBm)
0
5
10
15
20
25
30
35
60 80 84 90 100
Idd (mA)
IIP3 (dBm)
6
Figure 13. Fmin vs Frequency and Idd at 4.8 V Figure 14. Gain vs Frequency for Optimum IIP3 and Fmin at 4.8 V 84 mA
Figure 15. IIP3 vs Frequency for Optimum IIP3 and Fmin at 4.8 V 84 mA
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.9 2 2.2 2.5 2.7 3.3 3.5
Frequency (GHz)
Fmin (dB)
0
2
4
6
8
10
12
14
16
18
20
22
1.9 2 2.2 2.5 2.7 3.3 3.5
Frequency (GHz)
Gain (dB)
0
5
10
15
20
25
30
35
1.9 2 2.2 2.5 2.7 3.3 3.5
Frequency (GHz)
IIP3 (dBm)
100 mA
84 mA
70 mA
P1-P3P4-P6P7-P9P10-P12P13-P14

MGA-638P8-TR1G

Mfr. #:
Buy MGA-638P8-TR1G
Manufacturer:
Broadcom / Avago
Description:
RF Amplifier 2300-4000MHz HL LNA
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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