Information

146 | Signal Chain Guide 2013 Texas Instruments
Radio Frequency
Wireless Connectivity
Get more information: www.ti.com/product/CC1120
High Performance RF Transceiver for Narrowband Systems
CC1120
CC1120-PAN1325 system block diagram
The CC1120 is a fully integrated single-chip radio transceiver designed for high performance at
low power and low voltage operation in cost effective wireless systems. All filters are integrated,
removing the need for costly external SAW and IF filters. The device is mainly intended
for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency
bands at 164-192 MHz, 410-480 MHz and 820-960 MHz.
The CC1120 provides extensive hardware support for packet handling, data buffering,
burst transmissions, clear channel assessment, link quality indication and Wake-On-Radio.
The CC1120 main operating parameters can be controlled via an SPI interface. In a typical
system, the CC1120 will be used together with a microcontroller and only few external passive
components.
Key Features
• IndustryleadingRFblockingand
selectivity
• 65dBadjacentchannelrejection
at 12.5 kHz offset
•
90dBblocking
• Highoutputpower(upto+16dBm)
and excellent sensitivity (up to 145 db
link budget)
•
WaveMatch;advancedDSPsync
detector with high sensitivity and
strong noise and fast setting
•
AdvancedRXsniffmodewithlow
power without sacrificing performance
Applications
• Smart metering
• Alarm and security systems
• Industrial automation
(optional control pin
from CC1120)
A V D D _P F D _C H P
X O SC _Q 2 X O SC _Q 1
D C P L _P F D _C HP
A V D D _S Y N T H 2
D C P L _X O SC
A V D D _X O S C
E X T _X O SC
R E SE T _N
G P IO 3
G P IO 2
D V D D
V D D _G U A RD
D C P L
S I
S C L K
C S n
S O (G P IO 1)
D V D D
R B IA S
A V D D _IF
A V D D _R F
N .C .
G P IO 0
L N A _P
L N A _N
D C P L _V C O
A V D D _S Y N T H 1
P A
T R X _S W
L P F 0
L P F 1
vdd
vdd
vdd
vdd
vdd
CC1120
5
4
3
2
1
6
7
8
13 12 11 10
9
14
15 16
20
21
22
23
24
19
18
17
28 29 30 31 32
27 26 25
vdd
vdd
32 MHz
crystal
Optional
XOSC/
TCXO
MCU connection
SPI interface and
optional gpio pins
vdd
vdd
vdd