STMicroelectronics STB7720L
The STB7720L, manufactured in the third generation of ST proprietary pure Si bipolar process, is a three-stage linear power amplifier (PA) optimized for 802.11b/g wireless LAN (WLAN) applications in the 2.4GHz ISM band. It features 32dB of power gain and delivers 19dBm of linear output power with an EVM degradation of only 2% under 802.11g Modulation (54Mbps). The current consumption is as low as 125mA at 19dBm make the STB7720L a good solution for mobile applications.| Part No. | STB7720L |
|---|---|
| Datasheet | STB7720L Download |
| Manufacturer |  STMicroelectronics |
| Description | 2.4-2.5 GHz Silicon Linear Power Amplifier IC |
| Buy | Stock & Price |
FEATURES
SUMMARY● EXCELLENT LINEARITY EVM 2% @ 19dBm (WITH 802.11g OFDM 54Mb/s MODULATION)
● VERY LOW QUIESCENT CURRENT (60mA)
● INTEGRATED LINEAR ANALOG CONTROL FOR DC CURRENT AND OUTPUT MANAGEMENT
● INTEGRATED AVERAGE CHANNEL POWER DETECTOR
● LEADLESS PACKAGE (3mmx3mm LEAD FREE)
APPLICATIONS
● OPTIMIZED FOR USE IN 802.11 b/g Figure 1. Package QFN16L (3x3)DESCRIPTION
It achieves less than -40dBc firstside lobe suppression and less than -52dBc secondside lobe suppression under 802.11b modulation (11Mbps). The device embeds a Linear Analog Control for DC current and output management and a Proprietary Average Channel Power Detector solution. This power detector has 20dB dynamic range with 1 voltage range and ±0.3dB accuracy under 2:1 load mismatch. It provides a buffered DC voltage proportional to the average channel output power. Thanks to this solution we save cost and space by removing a coupler, an op amp (usually required in a power down function) and also an integrator. The SBT7720 is housed in QFN 3mmx3mm Leadless package.
