LMV226
Description
The LMV225/LMV226/LMV228 are 30 d B RF power detectors intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 450 MHz to 2 GHz. It provides an accurate temperature and supply pensated output voltage that relates linearly to the RF input power in d Bm. The circuit operates with a single supply from 2.7V to 5.5V. The LMV225/LMV226/LMV228 have an integrated filter for low-ripple average power detection of CDMA signals with 30 d B dynamic range. Additional filtering can be applied using a single external capacitor. The LMV225 has an RF power detection range from
- 30 d Bm to 0 d Bm and is ideally suited for direct use in bination with resistive taps. The LMV226/LMV228 have a detection range from
- 15 d Bm to 15 d Bm and are intended for use in bination with a directional coupler. The LMV226 is equipped with a buffered output which makes it suitable for GSM, EDGE, GPRS and TDMA applications. The device is active for Enable = HI, otherwise it is in a...
