Device Overview; Functional Block Diagram - Texas Instruments CC1021 Manual

CC1021
SWRS045F – JANUARY 2006 – REVISED NOVEMBER 2018
1.4

Functional Block Diagram

Figure 1-1 shows the system block diagram of the CC1021 device.
RF_IN
LNA LNA 2
RF_OUT PA
PA_EN
2

Device Overview

Not Recommended for New Designs NRND
0
:2
90
Power
Control
Multiplexer
BIAS
LNA_EN R_BIAS
Figure 1-1. Functional Block Diagram
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ADC
ADC
0
FREQ
:2
SYNTH
90
XOSC
XOSC_Q1 XOSC_Q2 VC CHP_OUT
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CC1021
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DIGITAL
DEMODULATOR
- Digital RSSI
- Gain Control
- Image Suppression
- Channel Filtering
- Demodulation
LOCK
DIO
DCLK
DIGITAL
INTERFACE
PDO
TO mC
PDI
PCLK
PSEL
DIGITAL
MODULATOR
- Modulation
- Data shaping
- Power Control