- Power detection range of 30 dB linear dB
- Output voltage range 0.2 to 2V
- Logic low downtime
- Multi-band operation from 450 MHz to 2000 MHz
- Precise temperature compensation
- Wrap:
- Micro SMD is 1.0 mm thin× 1.0 mm × 0.6 mm
- Micro SMD Ultra-Thin 1.0 mm × 1.0 mm × 0.35 mm
- LLP2.2 mm× 2.5 mm× 0.8 mm (LMV225 and LMV228)
illustrate
The LMV225/LMV226/LMV228 is a 30 dB RF power detector for CDMA and WCDMA applications. The device has an RF frequency range from 450 MHz to 2 GHz. It provides a precise linear relationship between the temperature and power supply compensated output voltage at dBm of RF input power. The circuit operates from a single supply of 2.7V to 5.5V. The LMV225/LMV226/LMV228 has an integrated detection filter with an average power of 30 dB dynamic range for low-ripple CDMA signals. Other filtration can be applied to use one external capacitor.
The LMV225 has an RF power sensing range from -30 dBm to 0 dBm and is ideal for direct use in combination with resistive taps. The LMV226/LMV228 has a detection range from -15 dBm to 15 dBm and is meant to be used in combination with directional couplers. The LMV226 is equipped with a buffered output, making it suitable for GSM, EDGE, GPRS, and TDMA applications.
The device is active enabled=hello, otherwise it is in low power downtime mode. On shutdown, the output will be low. The output voltage range is from 0.2V to 2V and can be scaled down to meet the ADC's input range requirements.
The LMV225/LMV226/LMV228 power detectors are available in 1.0 mm× 1.0 mm×0.6 mm micro SMD packages and ultra-thin 1.0 mm× 1.0 mm× 0.35 mm micro SMD packages. The LMV225 and LMV228 are also available in a 2.2 mm x 2.5 mm x 0.8 mm LLP package.
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- CDMA RF power control
- WCDMA RF power control
- CDMA2000 RF power control
- PA module
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