CC2550_06 Datasheet, PDF (11/55 Pages) Texas Instruments – Single Chip Low Cost Low Power RF Transmitter

CC2550
1.8V-3.6V power supply
SI
R141
SCLK
SO
(GDO1)
C41
1 SCLK
AVDD 12
CC2550 ^{2 SO (GDO1)}
RF_N 11
3 DVDD _{DIE ATTACH PAD:RF_P} 10
4DCOUPL
CSn 9
GDO0
(optional)
CSn
L111
C111
C112
C101
L101
C102
Antenna
(50 Ohm)
L102
C103 C104
Alternative:
Folded dipole PCB
antenna (no external
components needed)
XTAL
C51
C71
Figure 3: Typical application and evaluation circuit (excluding supply decoupling capacitors)
Component
C41
C51
C71
C101
C102
C103
C104
C111
C112
L101
L102
L111
R141
XTAL
Value
100 nF±10%, 0402 X5R
27 pF±5%, 0402 NP0
27 pF±5%, 0402 NP0
100 pF±5%, 0402 NP0
1.0 pF±0.25pF, 0402 NP0
1.8 pF±0.25pF, 0402 NP0
1.5 pF±0.25pF, 0402 NP0
100 pF±5%, 0402 NP0
1.0 pF±0.25pF, 0402 NP0
1.2 nH±0.3nH, 0402 monolithic
1.2 nH±0.3nH, 0402 monolithic
1.2 nH±0.3nH, 0402 monolithic
56 kΩ±1%, 0402
26.0 MHz surface mount crystal
Manufacturer
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata LQG15 series
Murata LQG15 series
Murata LQG15 series
Koa RK73 series
NDK, AT-41CD2
Table 13: Bill of Materials for the application circuit
In the CC2550EM reference design, LQG15
series inductors from Murata have been used.
Measurements have been performed with
multi-layer inductors from other manufacturers
(e.g. Würth) and the measurement results
were the same as when using the Murata part.
The Gerber files for the CC2550EM reference
design are available from the TI and Chipcon
websites.
PRELIMINARY Data Sheet (Rev.1.2) SWRS039A
Page 11 of 54