HFA3624

Features:

• Complete Receive/Transmit Front End
• RF Frequency Range . . . . . . . . . . . . . . 2.4GHz to 2.5GHz
• IF Operation . . . . . . . . . . . . . . . . . . . . . 10MHz to 400MHz
• Single Supply Battery Operation . . . . . . . . . 2.7V to 5.5V
• Independent Receive/Transmit Power Enable Mode


Application

• Systems Targeting IEEE 802.11 Standard
• PCMCIA Wireless Transceiver
• Wireless Local Area Network Modems
• TDMA Packet Protocol Radios
• Part 15 Compliant Radio Links
• Portable Battery Powered Equipment


Pinout




Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . .. . . . -0.3V to +6.0V
Voltage on Any Other Pin. . . . . . . . . . . . . . .  . . -0.3 to V_CC +0.3V


Description

The Intersil 2.4GHz PRISM™ chip set is a highly integrated five-chip solution for RF modems employing Direct Sequence Spread Spectrum (DSSS) signaling. The HFA3624 RF/IFconverter is one of the five chips in the PRISM™ chip set (see Figure 1 for the typical application circuit).

The HFA3624 Up/Down converter is a monolithic bipolar device for up/down conversion applications in the 2.4GHz to 2.5GHz range. Manufactured in the Intersil UHF1X process, the device consists of a low noise amplifier and down conversion mixer in the receive section and an up conversion mixer with power preamp in the transmit section. An energy saving power enable control feature assures isolation between the receive and transmit circuits for time division multiplexed systems. The HFA3624 device requires low drive levels from the local oscillator and is housed in a small outline 28 lead SSOP package ideally suited for PCMCIA card applications.