ADI ADL5382ACPZ-R7

The ADL5382 is a broadband quadrature I-Q demodulator that covers an RF input frequency range from 700 MHz to 2.7 GHz. With a NF = 14 dB, IPldB = 14.7 dBm, and IIP3 = 33.5 dBm at 900 MHz, the ADL5382 demodulator offers outstanding dynamic range suitable for the demanding infrastructure direct-conversion requirements. The differential RF inputs provide a well-behaved broadband input impedance of 50 Ω and are best driven from a 1:1 balun for optimum performance. Excellent demodulation accuracy is achieved with amplitude and phase balances ~0.05 dB and ~0.2°, respectively. The demodulated in-phase (I) and quadrature (Q) differential outputs are fully buffered and provide a voltage conversion gain of ~4 dB. The buffered baseband outputs are capable of driving a 2 V p-p differential signal into 200 Ω. The fully balanced design minimizes effects from second-order distortion. The leakage from the LO port to the RF port is << 65 dBc. Differential dc offsets at the I and Q outputs are typically < 10 mV. Both of these factors contribute to the excellent IIP2 specifications which is > 60 dBm. The ADL5382 operates off a single 4.75 V to 5.25 V supply. The supply current is adjustable with an external resistor from the BIAS pin to ground. The ADL5382 is fabricated using the advanced Silicon-Germanium bipolar process and is available in a 24-lead exposed paddle LFCSP.

• Operating RF and LO frequency: 700 MHz to 2.7 GHz
• Input IP3 33.5 dBm @ 900 MHz 30.5 dBm @ 1900 MHz
• Input IP2: > 70 dBm @ 900 MHz
• Input P1dB: 14.7 dBm @ 900 MHz
• Noise figure (NF) 14.0 dB @ 900 MHz 15.6 dB @ 1900 MHz
• Voltage conversion gain: ~4 dB
• Quadrature demodulation accuracy Phase accuracy: ~0.2° Amplitude balance: ~0.05 dB
• Demodulation bandwidth: ~370 MHz
• Baseband I/Q drive: 2 V p-p into 200 Ω
• Single 5 V supply

• Cellular W-CDMA/CDMA/CDMA2000/GSM
• Microwave point-to-(multi)point radios
• Broadband wireless and WiMAX