CC1101 Transceiver: Features, Pinout, and Datasheet

The CC1101 is a low-cost sub-1 GHz transceiver for wireless applications that require very little power. The circuit is designed to work in the ISM (Industrial, Scientific, and Medical) and SRD (Short Range Device) frequency bands of 315, 433, 868, and 915 MHz, but it can easily be configured to work in the 300-348 MHz, 387-464 MHz, and 779-928 MHz regions as well. A highly configurable baseband modem is incorporated with the  RF  transceiver. The modem accepts a variety of modulation types and has a data rate of up to 600 kbps. Packet processing, data buffering, burst broadcasts, clear channel evaluation, link quality indicator, and wake-on-radio are all supported by the CC1101.

An SPI interface can be used to control the CC1101  's major operating settings as well as the 64-byte transmit/receive  FIFOs . The CC1101  is typically used in conjunction with a microcontroller and a few other passive components in a typical setup.

In long-range applications, the CC1190 850-950 MHz range extender can be utilized with the CC1101  for better sensitivity and output power.

Pinout

Symbol

Footprint

3D Model

(1) RF Performance

• High sensitivity

o -116 dBm at 0.6 kBaud, 433 MHz, 1% packet error rate

o -112 dBm at 1.2 kBaud, 868 MHz, 1% packet error rate

• Low current consumption (14.7 mA in RX, 1.2 kBaud, 868 MHz)

• Programmable output power up to +12 dBm for all supported frequencies

• Excellent receiver selectivity and blocking performance

• Programmable data rate from 0.6 to 600 kbps

• Frequency bands: 300-348 MHz, 387-464 MHz and 779-928 MHz

(2) Analog Features

• 2-FSK, 4-FSK, GFSK, and MSK supported as well as OOK and flexible ASK shaping

• Suitable for frequency hopping systems due to a fast settling frequency synthesizer; 75 μs settling time

• Automatic Frequency Compensation (AFC) can be used to align the frequency synthesizer to the received signal centre frequency

• Integrated analog temperature sensor

(3) Digital Features

• Flexible support for packet-oriented systems; On-chip support for sync word detection, address check, flexible packet length, and automatic CRC handling

• Efficient SPI interface; All registers can be programmed with one “burst” transfer

• Digital RSSI output

• Programmable channel filter bandwidth

• Programmable Carrier Sense (CS) indicator

• Programmable Preamble Quality Indicator (PQI) for improved protection against false sync word detection in random noise

• Support for automatic Clear Channel Assessment (CCA) before transmitting (for listen-before-talk systems)

• Support for per-package Link Quality Indication (LQI)

• Optional automatic whitening and dewhitening of data

(4) Low-Power Features

• 200 nA sleep mode current consumption

• Fast startup time; 240 μs from sleep to RX or TX mode

• Wake-on-radio functionality for automatic low-power RX polling

• Separate 64-byte RX and TX data FIFOs (enables burst mode data transmission)

(5) General

• Few external components; Completely onchip frequency synthesizer, no external filters or switch needed

• Green package: RoHS compliant and no antimony or bromine

• Small size (QLP 4x4 mm package, 20 pins)

• Suited for systems targeting compliance with EN 300 220 (Europe) and FCC CFR Part 15 (US)

• Suited for systems targeting compliance with the Wireless MBUS standard EN 13757-4:2005

• Support for asynchronous and synchronous serial receive/transmit mode for backwards compatibility with existing radio communication protocols

NA CC1101RGP technical specifications, attributes, parameters and parts with similar specifications to NA CC1101RGP.

Functional Block Diagram

The image above shows a simplified block diagram of the CC1101. The CC1101 is equipped with a low-IF receiver. The low-noise amplifier (LNA) amplifies the received RF signal and converts it to the intermediate frequency in quadrature (I and Q) (IF). The  ADCs  digitize the I/Q signals at the IF. Digitally executed functions include automatic gain control (AGC), precise channel filtering, demodulation, and bit/packet synchronization.

The transmitter section of the CC1101 uses direct RF frequency synthesis.

In receive mode, the frequency synthesizer has an on-chip LC VCO and a 90-degree phase shifter for creating the I and Q LO signals for the down-conversion mixers. To XOSC Q1 and XOSC Q2, a crystal must be connected. The crystal oscillator generates the synthesizer's reference frequency as well as clocks for the ADC and digital section.

For configuration and data buffer access, a 4-wire SPI serial interface is employed. Channel setting, packet handling, and data buffering are all supported by the digital baseband.

Typical Application and Evaluation Circuit 315/433 MHz (excluding supply decoupling capacitors)

Typical Application and Evaluation Circuit 868/915 MHz (excluding supply decoupling capacitors)

• Ultra low-power wireless applications operating in the 315/433/868/915 MHz ISM/SRD bands

• Wireless alarm and security systems

• Industrial monitoring and control

• Wireless sensor networks

• AMR – Automatic Meter Reading

• Home and building automation

• Wireless MBUS

Package

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