The ISL3990 is a dual-band power amplifier from ISL company. It operates in the ISM and U-NII bands with an output power of 21 dBm (typical). The power supply voltage is 2.7V to 3.6V and the power gain is 28 dB (typical). The working frequency range is 1.8GHz to 2.4GHz and 5.15GHz to 5.825GHz.
The ISL3990 is a dual band monolithic GaAs power amplifier designed for operation in both ISM and U-NII bands. It delivers 21dBm output power for ISM and 16dBm for U-NII OFDM applications. The device includes a dual band detector for accurate ALC implementation over a 15dB dynamic range. It is housed in a 24-lead QFN package and operates on a single supply voltage of 2.7V to 3.6V.
Applications include IEEE802.11a/b/g WLAN systems, PCMCIA wireless transceivers, ISM systems with ALC, and TDMA packet protocol radios. The datasheet provides pinout, simplified block diagram, and ordering information for temperature ranges and package types.
| Supply Voltage | 2.7V to 3.6V |
|---|---|
| Output Power (ISM) | 21dBm (Typ) |
| Output Power (U-NII) | 16dBm (Typ) |
| Power Gain | 28dB (Typ) |
| Detector Linear Input Power Range | 15dB |
| Detector Accuracy | +1dB |
| Package Type | 24-lead QFN |
The output power for ISM applications is 21dBm (Typ).
The detector accuracy is +1dB over a 15dB dynamic range.
The ISL3990 is housed in a 24-lead QFN package.