1.1 Features

• Seamless Interface to 2.4-GHz Low-Power RF Devices from Texas Instruments
• Output Power up to 22 dBm
• Few External Components
  • Integrated Switches
  • Integrated Matching Network
  • Integrated Balun
  • Integrated Inductors
  • Integrated PA
  • Integrated LNA
• Digital Control of LNA Gain by HGM Pin
• 100-nA in Power Down (EN = PAEN = 0)
• Low Transmit Current Consumption
  (100 mA at 3 V for 20-dBm Out, PAE = 33%)
• Low-Receive Current Consumption
  • 3.4 mA for High-Gain Mode
  • 1.7 mA for Low-Gain Mode
• 4.8-dB LNA Noise Figure, Including T/R Switch and External Antenna Match
• RoHS Compliant 4×4-mm QFN-16 Package
• 2-V to 3.6-V Operation

1.2 Applications

• All 2.4-GHz ISM Band Systems
• Wireless Sensor Networks
• Wireless Industrial Systems
• IEEE 802.15.4 and ZigBee® Systems
• Wireless Consumer Systems
• Wireless Audio Systems

1.3 Description

CC2591 is a cost-effective and high-performance RF front end for low-power and low-voltage 2.4-GHz wireless applications. The device is a range extender for all existing and future 2.4-GHz low-power RF transceivers, transmitters, and System-on-Chip products from TI. CC2591 increases the link budget by providing a power amplifier for increased output power, and an LNA with low noise figure for improved receiver sensitivity. The device provides a small size, high output power RF design with its 4-mm × 4-mm QFN-16 package. The device contains PA, LNA, switches, RF-matching, and balun for simple design of high-performance wireless applications.

1.4 Functional Block Diagram

Figure 1-1 shows the functional block diagram of the device.

Figure 1-1 Functional Block Diagram