CC2550-RTY1 datasheet(11/62 Pages) TI2

11 / 62 page

CC2550

SWRS039B

Page 11 of 58

Component

Description

C41

Decoupling capacitor for on-chip voltage regulator to digital part

C51/C71

Crystal loading capacitors, see Section 22 on page 32 for details

C101/C111

RF balun DC blocking capacitors

C102/C112

RF balun/matching capacitors

C103/C104

RF LC filter/matching capacitors

L101/L111

RF balun/matching inductors (inexpensive multi-layer type)

L102

RF LC filter inductor (inexpensive multi-layer type)

R141

Resistor for internal bias current reference

XTAL

26-27 MHz crystal, see Section 22 on page 32 for details

Table 12: Overview of External Components (excluding supply decoupling capacitors)

Antenna

(50 Ohm)

1.8V-3.6V power supply

1 SCLK

2 SO (GDO1)

3 DVDD

AVDD 12

RF_N 11

RF_P 10

CSn 9

XTAL

C102

C112

L111

L101

L102

C103

C104

R141

C51

C71

C41

CSn

GDO0

(optional)

(GDO1)

SCLK

CC2550

DIE ATTACH PAD:

C111

C101

DCOUPL

Alternative:

Folded dipole PCB

antenna (no external

components needed)

Figure 3: Typical Application and Evaluation Circuit (excluding supply decoupling capacitors)

CC2550-RTY1 数据表(PDF) 11 Page - Texas Instruments

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