Datasheet LTC5535 (Analog Devices) - 10

LTC5535
U U W U APPLICATIO S I FOR ATIO Applications
Operation at higher RF input frequencies is achievable. Consult factory for more information. The LTC5535 can be used as a self-standing signal strength measuring receiver for a wide range of input signals from The LTC5535 can be used as a demodulator for AM and –32dBm to 10dBm for frequencies from 600MHz to 7GHz. ASK modulated signals. Depending on specific application needs, the RSSI output can be split between two branches, The LTC5535 offers increased baseband bandwidth com- providing AC-coupled data (or audio) output and a pared to other Schottky diode detectors. Table 1 shows DC-coupled RSSI output for signal strength measure- that the baseband (demodulation) bandwidth is typically ments and AGC. 12MHz at an RF input signal level of –10dBm. The baseband bandwidth is largely independent of the RF input signal frequency over the range of 600MHz to 7GHz.
Table 1 INPUT LEVEL OUTPUT BW FREQUENCY (dBm) –3dB (MHz) (GHz) GAIN
–20 12.5 3 2 –10 12 3 2 –5 11 3 2 0 9.5 3 2 5535f 10