Philips Semiconductors
High dynamic range dual LNA MMIC
Preliminary specification
CGY2105ATS
Table 1 List of components; see Figs 3 and 4
COMPONENT
C1, C2
C3, C4
C5, C6
R1, R2
R3, R4
R5, R6
L1, L2
DESCRIPTION
VALUE
decoupling capacitor 1 nF
decoupling capacitor 47 pF
decoupling capacitor 47 pF
drain biasing resistor 39 Ω
gate biasing resistor 15 kΩ
gate biasing resistor 10 kΩ
drain biasing inductor 18 nH
REFERENCE
Philips; NPO, 0603
Philips; NPO, 0603
Philips; NPO, 0603
Philips; XR7, 0805
Philips; 0603
Philips; 0603
Coilcraft; 0603
Table 2 Transmission lines; see Figs 3 and 4
COMPONENT
TRL1, TRL2
TRL3, TRL4
TRL5, TRL6
Z0
100 Ω
100 Ω
100 Ω
LENGTH IN λ
0.08λ at 1800 MHz
0.08λ at 1800 MHz
0.08λ at 1800 MHz
LENGTH IN mm(1)
10 mm
4 mm
3.4 mm
WIDTH IN mm(1)
0.25 mm
0.80 mm
0.80 mm
Note
1. Transmission line lengths and widths in mm are valid for a double sided PCB; thickness of 0.8 mm in FR4 material
(ε = 4.7).
1999 Dec 23
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