Free Electronic Circuit | UHF RF Transmitter

Very Low Power UHF RF Transmitter with CC1050 Chip

CC1050 is RF Integrated Circuit UHF transmitter designed for very low power and very low voltage wireless applications. The 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 CC1050 via an easy-tointerface serial bus can be programmed, thus making CC1050 a very flexible and easy to use transmitter. In a typical system CC1050 will be used together with a microcontroller and a few external passive components. CC1050 is based on Chipcon’s SmartRF® technology in 0.35 µm CMOS.

Application Schematic and Datasheet

Features
• True single chip UHF RF transmitter
• Very low current consumption
• Frequency range 300 – 1000 MHz
• Programmable output power –20 to 12 dBm
• Small size (TSSOP-24 package)
• Low supply voltage (2.1 V to 3.6 V)
• Very few external components required
• Single-ended antenna connection
• FSK data rate up to 76.8 kBaud
• Complies with EN 300 220 and FCC CFR47 part 15
• Programmable frequency in 250 Hz steps makes crystal temperature drift compensation possible without TCXO
• Suitable for frequency hopping protocols
• Development Kit available
• Easy-to-use software for generating the CC1050 configuration data

Applications
• Very low power UHF wireless data transmitters
• 315 / 433 / 868 and 915 MHz ISM/SRD band systems
• RKE – Remote Keyless Entry
• Home automation
• Wireless alarm and security systems
• AMR – Automatic Meter Reading
• Low power telemetry
• Game Controllers and advanced toys