LMV225SDX/NOPB Texas Instruments 射频检测器

FEATURES DESCRIPTION

The LMV225/LMV226/LMV228 are 30 dB RF power 2• 30 dB Linear in dB Power Detection Range

detectors intended for use in CDMA and WCDMA

• Output Voltage Range 0.2 to 2V applications. The device has an RF frequency range

• Logic Low Shutdown from 450 MHz to 2 GHz. It provides an accurate

• Multi-Band Operation from 450 MHz to 2000 temperature and supply compensated output voltage

MHz that relates linearly to the RF input power in dBm.

The circuit operates with a single supply from 2.7V to

• Accurate Temperature Compensation 5.5V. The LMV225/LMV226/LMV228 have an

• Packages: integrated filter for low-ripple average power detection

– DSBGA Thin 1.0 mm x 1.0 mm x 0.6 mm of CDMA signals with 30 dB dynamic range.

Additional filtering can be applied using a single

– DSBGA Ultra Thin 1.0 mm x 1.0 mm x 0.35 external capacitor. mm

– WSON 2.2 mm x 2.5 mm x 0.8 mm The LMV225 has an RF power detection range from

–30 dBm to 0 dBm and is ideally suited for direct use

– (LMV225 and LMV228) in combination with resistive taps. The

LMV226/LMV228 have a detection range from –15

APPLICATIONS dBm to 15 dBm and are intended for use in

combination with a directional coupler. The LMV226 • CDMA RF Power Control

is equipped with a buffered output which makes it

• WCDMA RF Power Control suitable for GSM, EDGE, GPRS and TDMA

• CDMA2000 RF Power Control applications.

• PA Modules