CC1010-RTR1 datasheet(83/152 Pages) TI

83 / 152 page

CC1010

SWRS047

Page 83 of 152

17. RF Transceiver

17.1 General description

The

CC1010 UHF RF Transceiver is

designed for very low power and low

voltage

applications.

The

transceiver

circuit is mainly intended for the ISM

(Industrial, Scientific and Medical) and

SRD (Short Range Device) frequency

bands at 315, 433, 868 and 915 MHz, but

can easily be programmed for operation at

other frequencies in the 300-1000 MHz

range.

The main operating parameters of

CC1010

can be programmed via Special Function

Registers (SFRs), thus making

CC1010 a

very flexible and easy to use transceiver.

Very few external passive components are

required

for

operation

the

Transceiver.

The key parameters for the RF transceiver

are listed in Table 6, Table 7, Table 8,

Table 9, and Table 10, starting page 8.

17.2 RF Transceiver Block Diagram

Figure 19. Simplified block diagram of the RF Transceiver

A simplified block diagram of the RF

transceiver is shown in Figure 19. Only

analog signal pins are shown together with

the internal SFR data bus that is used to

configure the RF interface and to transmit

and receive data.

In receive mode the

CC1010 is configured

as a traditional super-heterodyne receiver.

The RF input signal is amplified by the

LNA

DEMOD

VCO

OSC

MIXER

CHARGE

PUMP

RF_IN

CHP_OUT

IF STAGE

RF_OUT

AD2(RSSI/IF)

RFBUF

XOSC_Q2

XOSC_Q1

LPF

BIAS

R_BIAS

Internal

8051 SFR Bus

SFR

CONTROL

REGISTERS

ENCODER

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