LTC5587IDD#TRPBF

LTC5587IDD#TRPBF is a 10MHz to 6GHz, low-power monolithic precision RMS power detector with an integrated 12bit serial analogue-to-digital converter (ADC). The RMS detector uses a proprietary technique to accurately measure the RF power of modulated signals with a crest factor as high as 12dB. For an input frequency of 2.14GHz the detection range is from -34dBm to 6dBm. The serial digital output of the detector is a 12bit word value that is directly proportional to the RF signal power measured in dBm. The LTC5587 is suitable for precision power measurement for a wide variety of RF standards, including LTE, WiMAX, W-CDMA, TD-SCDMA, CDMA, CDMA2000, EDGE, GSM, etc. The DC output of the detector is connected in series with an on-chip 300 ohm resistor to the analogue output pin (VOUT). It is used in applications such as pico-cells, femto-cells RF power control, wireless repeaters, CATV/DVB transmitters, MIMO wireless access points, portable RMS power measurement, antenna monitor.

• Exceptional accuracy over temperature, single-ended RF input
• SPI/MICROWIRE serial I/O, compatible with 1V to 3.6V digital logic
• CW linear dynamic range is 40dB typical at (±1dB linearity error, TA = 25°C)
• Output slope is 73LSB/dB typical at (TA = 25°C)
• Logarithmic intercept is -42dBm typical at (TA = 25°C)
• 2nd order harmonic distortion is -57dBc typ at (RF input; CW input; PIN = 0dBm)
• Shift clock frequency is 50MHz maximum at (TA = 25°C)
• Conversion time is 1.5μs minimum
• Shift clock period is 20ns minimum
• Operating temperature range from -40°C to 85°C, 12-lead plastic DFN package

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party