ADL5904ACPZN-R7

ADL5904 is a dual-function radio frequency (RF) TruPwr™ detector that operates from dc to 6GHz. It provides rms power measurement along with a programmable envelope threshold detection function. The rms power measurement function has a 45dB detection range, nominally from -30dBm to +15dBm. The rms power measurement function features low power consumption and an intrinsically ripple free error transfer function. The envelope threshold detection function compares the voltage from an internal envelope detector with a user defined input voltage. When the voltage from the envelope detector exceeds the user defined threshold voltage, an internal comparator captures and latches the event to a set/reset (SR) flip flop. The response time from the RF input signal exceeding the user programmed threshold to the output latching is 12ns. It is used in application like transmitter signal strength indication, wireless power amplifier input and output protection, wireless receiver input protection.

• RMS and envelope threshold detection
• VRMS logarithmic slope is 36.5mV/dB typ at (PIN = -25dBm to -10dBm)
• Input envelope threshold detection and latching
• Programmable threshold and latch reset function
• Propagation delay is 15ns typ at (RFIN pin = off to 10dBm, VIN- = 400mV, 5dB overdrive)
• All functions temperature and supply stable
• Supply voltage is 3.3V typ at (VPOS = 3.3V, continuous wave (CW) input, TA = 25°C)
• Supply current is 3.5mA typ at (TA = 25°C, no signal at RFIN)
• Power-down current is 100µA typ at (ENBL = low, TA = 25°C)
• Operating temperature is -40°C to +105°C, package style is 16-lead LFCSP

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