njg1519kc1 New Japan Radio Co.,Ltd, njg1519kc1 Datasheet - Page 15

• Manufacturer Part Number: njg1519kc1
• Description: Njg1519kc1 Sp4t Switch Gaas Mmic
• Manufacturer: New Japan Radio Co.,Ltd

nAPPLICATION CIRCUIT
nRECOMMENDED PCB DESIGN
PRECAUTIONS
[1] The DC blocking capacitors have to be placed at RF terminal of P1, P2 and PC.
[2] Bypass capacitors (C4, C5) should be placed close to terminals of V
[3] For good isolation, the GND terminal (2nd pin) must be placed possibly close to ground
[4] To avoid degradation of isolation or high power characteristics, please layout ground
stripline influence of RF characteristics.
plane of substrate, and through holes for GND should be placed near by the pin connection.
pattern right under this IC.
VCTL1
VCTL2
P1
P2
VCTL1
VCTL2
P2
P1
C7
C6
C1
56pF
C2
56pF
C1
C2 C3
10pF
10pF
C4
C6
C7
C9
C8
C5
1
2
3
4
5
P4
P3
VCTL3
VCTL4
NJG1519KC1
PC
nCircuit losses including losses of
nPARTS LIST
capacitors and connectors
PCB: FR-4, t=0.5mm
Microstrip Line Width: 1mm (Z
PCB Size: 26x26mm
C1~C5
C6~C9
Frequency
Loss (dB)
10
Parts
9
8
7
6
C9
10pF
C8
10pF
Value
56pF
10pF
C5
56pF
C4
56pF
C3
56pF
900MHz
NJG1519KC1
CTL1
0.20
VCTL4
VCTL3
, V
MURATA (GRM36)
MURATA (GRM36)
P4
PC
P3
CTL2
Notes
to reduce
0
=50 )
1.9GHz
0.36
- 15 -