njg1634lk5 New Japan Radio Co.,Ltd, njg1634lk5 Datasheet - Page 21

• Manufacturer Part Number: njg1634lk5
• Description: Njg1634lk5 Sp6t Antenna Switch Gaas Mmic
• Manufacturer: New Japan Radio Co.,Ltd

CDMA1900
n RECOMMENDED PCB DESIGN
Jumper wire for VDD
ANT
PRECATIONS
[1] For good RF performance, the ground terminals should be directly connected to the ground
patterns and the through-holes as close as possible by using relatively wide pattern.
[2] Please connect exposed GND PADs (bottom side of IC) to PCB GND using through holes.
[3] To reduce microstrip line influence on RF characteristics, please locate bypass capacitors (C8)
close to VDD terminals.
GSM800 Tx
L1
C6
C7
C8
C5
C4
C1
GSM1800 Tx
C2
C3
CDMA800
GSM900 Rx
GSM1800 Rx
Insertion Loss
PCB SIZE= 26 x 39 mm
PCB: FR-4, t=0.2mm
CAPACITOR: size 1005
MICROSTRIP LINE WIDTH=0.4mm
Suppression
Board total losses (Connector and PCB)
Harmonics
Parameter
Cellular Tx
Cellular Rx
EGSM Rx
EGSM Tx
EGSM Tx
DCS Rx
PCS RX
DCS Tx
PCS Tx
DCS Tx
Mode
NJG1634LK5
Frequency
(MHz)
1710
1785
1805
1880
1850
1910
1930
1990
1760
1830
2640
2745
3420
3570
5130
5355
880
915
925
960
824
849
869
894
Loss
(dB)
0.19
0.22
0.16
0.18
0.18
0.19
0.19
0.20
0.36
0.37
0.38
0.37
0.36
0.38
0.38
0.39
0.37
0.37
0.50
0.53
0.65
0.69
0.91
0.94
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