CC2510FX Datasheet, PDF (191/253 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

CC2510Fx / CC2511Fx
15 Radio
LNA
RF_P
RF_N
PA
RADIO CONTROL
ADC
ADC
0
FREQ
90
SYNTH
Figure 42: CC2510Fx/CC2511Fx Radio Module
A simplified block diagram of the radio
module in the CC2510Fx/CC2511Fx is shown
in Figure 42.
CC2510Fx/CC2511Fx features a low-IF
receiver. The received RF signal is
amplified by the low-noise amplifier (LNA)
and down-converted in quadrature (I and
Q) to the intermediate frequency (IF). At
IF, the I/Q signals are digitized by the
ADCs. Automatic gain control (AGC), fine
channel filtering, demodulation bit/packet
synchronization is performed digitally.
The transmitter part of CC2510Fx/CC2511Fx
is based on direct synthesis of the RF
frequency.
The frequency synthesizer includes a
completely on-chip LC VCO and a 90
degrees phase shifter for generating the I
15.1 Command strobes
The CPU uses a set of command strobes
to control operation of the radio in
CC2510Fx/CC2511Fx.
and Q LO signals to the down-conversion
mixers in receive mode.
The 26/48 MHz crystal oscillator generates
the reference frequency for the
synthesizer, as well as clocks for the ADC
and the digital part.
An SFR register interface is used for data
buffer access from the CPU. Configuration
and status registers are accessed through
registers mapped to XDATA memory.
The digital baseband includes support for
channel configuration, packet handling
and data buffering. An on-chip voltage
regulator delivers a regulated 1.8 V supply
voltage.
Command strobes may be viewed as
single byte instructions which each control
some function of the radio. These
command strobes must be used to enable
CC2510Fx/CC2511Fx PRELIMINARY Data Sheet (Rev. 1.2) SWRS055A Page 191 of
252