AFEM-S257-TR1G Avago Technologies US Inc., AFEM-S257-TR1G Datasheet - Page 9

• Manufacturer Part Number: AFEM-S257-TR1G
• Description: 2.5 GHz WiMAX FEM
• Manufacturer: Avago Technologies US Inc.
• Series: -r

Specifications of AFEM-S257-TR1G

• Rf Type: WiMax
• Frequency: 2.5GHz ~ 2.7GHz
• Features: -
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Application Circuit AFEM-S257
Figure 3. Demoboard Schematic
Land Pattern
Figure 4. Recommended footprint
9
4.30
VCTRL
JP2
JP1
R22
100
Common
VDD_RX
0.70
0.50 SQ
3
2
1
3
2
1
1
3
5
7
metal
TRSW22
TRSW21
TRSW12
TRSW11
GND
JP4-7
VCTRL
VCTRL
2
4
6
8
14
13
12
11
10
15
9
PAEN
PAMODE
LNA1MODE
LNA2MODE
0.70
R16
3.3 K
R13
3.3 K
R15
3.3 K
R12
3.3 K
3.20
16
R21
10K
8
17
7
TOP VIEW LAND PATTERN
R20
10K
JP3
Add large array of thermal vias under the
entire center GND pad of the module. Via size
and precise location are not critical. Thermal
vias are filled and then capped with copper.
Thicker Via Cu plating and larger number of
vias will improve the thermal performance.
18
6
5.20
3
2
1
R19
10K
29
ANTSW2
ANTSW1
6.30
VCTRL
19
5
R18
10K
20
4
0.55
R17
3.3 K
R14
3.3 K
21
3
C3
1.0 F
Ø0.25
22
2
C5
0.1 F
VDD1_TX
23
1
24
25
26
27
28
SMA-39W
SMA-39W
SMA-39W
J1
J2
J3
1
1
1
RFRX1
RFTX
RFRX2
ANTSW1
LNA1MODE
PAMODE
TRSW11
TRSW12
TRSW21
TRSW22
PAEN
VREF
LNA2MODE
ANTSW2
9
8
7
6
5
4
3
2
1
vdd1_tx
gnd5
rx1
gnd4
gnd3
tx
gnd2
rx2
gnd1
2.8 V
U1
CoWi Module
trsw11
trsw12
trsw21
gnd6
gnd7
gnd8
gnd9
ant1
ant2
C6
0.1 F
VDD_RX
15
16
17
18
19
20
21
22
23
ANT1
ANT2
C1
0.1 F
VDD_RX
C2
10 F
1
1
SMA-39W
SMA-39W
VDD2_TX
+ C21
J4
J5
47 F
Size B