RF2153 데이터 시트보기 (PDF) - RF Micro Devices
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RF2153 Datasheet PDF : 12 Pages
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RF2153
Application Schematic
US - CDMA
VCC 2nd Interstage tuning for
centering frequency response
Bypassing for VCC
10 nF
10 nF
10 nF
2
1st Interstage tuning to
match input return loss
To match input return loss
and vary gain
RF IN
8 pF
1.5 nH
150 Ω
15 pF
10 pF
15 pF
TL3
1 16 15 14 13
2
12
3
11
4
10
56789
47 Ω
27 Ω
TL1
L4
15 nH
15 pF
15 pF
15 pF
Ground for 2nd
Harmonic Trap
12 nH* 1 pF
TL2
15 pF
RF OUT
4.7 pF**
2.2**
Matching Network for
optimum load impedance
Bypassing for
VREG1 and VREG2
VREG
VMODE
Tied together for optimum linearity
1 kΩ
* High Q inductor (i.e., Coilcraft 0805HQ-series).
**High Q capacitors (i.e., Johanson C-series).
Transmission
Line Length
CDMA (US)
TL1
20 mils
TL2
100 mils
TL3
20 mils
Rev A18 001114
2-171
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