DC1599A

DC1599A demonstration circuit 1599A is a Mean-Squared power detector featuring the LTC®5583 IC. LTC5583 is a dual-channel RMS power detector, capable of measuring two AC signals. It provides 40dB of channel to channel isolation with no frequency separation at 2140MHz that is suited for measuring VSWR. The DC1599A demo circuit is ideal for frequency operation below 3GHz. It has the single ended input drive to LTC5583. The input A to output B (or input B to output A) isolation is 33dB at 2.7GHz, and degrades as input frequency increases. As a result, operating above 3GHz may require differential input matching for improved isolation. Temperature performance is optimized for 2140MHz.

• Supply voltage range from 3.1V to 3.5V
• 80.5mA supply current at envelope detector off
• 0.45V output start voltage at no input signal present
• 63dB linear dynamic range at ±1 dB linearity error (f =450MHz)
• 29.6mV/dB slope (f =450MHz)
• Logarithmic intercept is -78.5dBm (f =450MHz)
• 50dB INA to VOB isolation at PINB = -45dBm, VOB= VOB pINB ±1dB, frequency separation=0Hz
• 50dB INA to VOA isolation at PINA = -45dBm, VOA= VOA pINA ±1dB, frequency separation=0Hz

Notes

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