Applications
• 2400-2483.5 MHz ISM/SRD band systems
• Consumer electronics
• Wireless game controllers
• Wireless audio
• RF enabled remote controls

Product Description
The CC2550 is a low-cost 2.4 GHz transmitter
designed for very low-power wireless applications.
The circuit is intended for the 2400-
2483.5 MHz ISM (Industrial, Scientific and
Medical) and SRD (Short Range Device) frequency
band.
The RF transmitter is integrated with a highly
configurable baseband modulator. The
modulator supports various modulation
formats and has a configurable data rate up to
500 kBaud.
The CC2550 provides extensive hardware
support for packet handling, data buffering and
burst transmissions.
The main operating parameters and the 64-
byte transmit FIFO of CC2550 can be controlled
via an SPI interface. In a typical system, the
CC2550 will be used together with a microcontroller
and a few passive components.

Key Features
RF Performance
• Programmable output power up to +1 dBm
• Programmable data rate from 1.2 to 500
kBaud
• Frequency range: 2400 – 2483.5 MHz
Analog Features
• OOK, 2-FSK, GFSK, and MSK supported
• Suitable for frequency hopping and multichannel
systems due to a fast settling
frequency synthesizer with 90 us settling
time
• Integrated analog temperature sensor
Digital Features
• Flexible support for packet oriented
systems: On-chip support for sync word
insertion, flexible packet length, and
automatic CRC handling
• Efficient SPI interface: All registers can be
programmed with one “burst” transfer
• Optional automatic whitening of data

Low-Power Features
• 200 nA SLEEP mode current consumption
• Fast startup time: 240 us from SLEEP to
TX mode (measured on EM design [3])
• 64-byte TX data FIFO (enables burst
mode data transmission)

General
• Few external components: Complete onchip
frequency synthesizer, no external
filters needed
• Green package: RoHS compliant and no
antimony or bromine
• Small size (QLP 4x4 mm package, 16
pins)
• Suited for systems compliant with EN 300
328 and EN 300 440 class 2 (Europe),
FCC CFR47 Part 15 (US), and ARIB STDT66
(Japan)
• Support for asynchronous and
synchronous serial transmit mode for
backwards compatibility with existing radio
communication protocols