Texas Instruments CC1150, Manual

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BIAS
XOSC_Q1 XOSC_Q2
XOSC
FREQ
SYNTH
RADIO CONTROL
RF_P
RF_N
CSn
SI
SO (GDO1)
SCLK
GDO0 (ATEST)
RBIAS
PA
F
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CC1150
www.ti.com SWRS037B – JANUARY 2006 – REVISED MARCH 2015
5 Detailed Description
5.1 Overview
The CC1150 transmitter is based on direct synthesis of the RF frequency. The frequency synthesizer
includes a completely on-chip LC VCO.
A crystal is to be connected to XOSC_Q1 and XOSC_Q2. The crystal oscillator generates the reference
frequency for the synthesizer, as well as clocks for the digital part. A 4-wire SPI serial interface is used for
configuration and data buffer access. The digital baseband includes support for channel configuration,
packet handling and data buffering.
5.2 Functional Block Diagram
Figure 5-1. CC1150 Simplified Block Diagram
5.3 Configuration Overview
CC1150 can be configured to achieve optimum performance for many different applications. Configuration
is done using the SPI interface. The following key parameters can be programmed:
• Power-down and power-up mode
• Crystal oscillator power up and power down
• Transmit mode
• RF channel selection
• Data rate
• Modulation format
• RF output power
• Data buffering with 64-byte transmit FIFO
• Packet radio hardware support
• Forward Error Correction with interleaving
• Data Whitening
Details of each configuration register can be found in Section 5.20 .
Figure 5-2 shows a simplified state diagram that explains the main CC1150 states, together with typical
usage and current consumption. For detailed information on controlling the CC1150 state machine, and a
complete state diagram, see
Section 5.11 .
Copyright © 2006–2015, Texas Instruments Incorporated
Detailed Description 11
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