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ADL5380:  400 to 6000 MHz Quadrature Demodulator

The ADL5380 is a broadband quadrature I-Q demodulator that covers an RF/IF input frequency range from 400 MHz to 6 GHz. With a NF = 10.9 dB, IP1dB = 11.6 dBm, and IIP3 = 29.7 dBm @ 900 MHz, the ADL5380 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 ...More

ADL5380:  400 to 6000 MHz Quadrature Demodulator

Product Description

The ADL5380 is a broadband quadrature I-Q demodulator that covers an RF/IF input frequency range from 400 MHz to 6 GHz. With a NF = 10.9 dB, IP1dB = 11.6 dBm, and IIP3 = 29.7 dBm @ 900 MHz, the ADL5380 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 of ~0.07 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 ~7 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 <−50 dBm. Differential dc offsets at the I and Q outputs are typically <20 mV. Both of these factors contribute to the excellent IIP2 specification, which is >65 dBm.

The ADL5380 operates off a single 4.75 V to 5.25 V supply. The supply current is adjustable by placing an external resistor from the ADJ pin to either the positive supply, VS, (to increase supply current and improve IIP3) or to ground (which decreases supply current at the expense of IIP3).

The ADL5380 is fabricated using the Analog Devices, Inc., advanced silicon-germanium bipolar process and is available in a 24-lead exposed paddle LFCSP.

Applications

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

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    • Operating RF and LO frequency: 400 MHz to
      6 GHz
    • Input IP3
      30 dBm @ 900 MHz
      28 dBm @1900 MHz
    • Input IP2: >65 dBm @ 900 MHz
    • Input P1dB (IP1dB): 11.6 dBm @ 900 MHz
    • Voltage conversion gain: ~7 dB
    • Demodulation bandwidth: ~390 MHz
    • Noise figure (NF)
      10.9 dB @ 900 MHz
      11.7 dB @ 1900 MHz
    • Quadrature demodulation accuracy @
      900 MHz
      Phase accuracy: ~0.2°
      Amplitude balance: ~0.07 dB
    • Baseband I/Q drive: 2 V p-p into 200 Ω
    • Single 5 V supply
    • Function: Demod
    • RF Freq (MHz): 400 to 6000
    • NF : 15dB

    Functional Block Diagram for ADL5380

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    Part# Function RF Freq (MHz) IQ Freq (MHz) Phase Error (deg) Amplitude Error (dB) VGA Range (dB) Noise Floor (dBm/Hz) Voltage Supply (V) Supply Current Package Price* (1000-4999)
    AD630 Demod, Mod dc to 2 - - - - - +/- 15 5 20-Lead DIP $6.25
    AD8333 Demod dc to 50 - 0.1 0.05 - -161 +/- 5 44 32-Lead LFCSP $9.06
    AD8339 Demod dc to 50 50 1 0.25 - - 4.5 to 5.5 35 40-Lead LFCSP $12.09
    AD8340 Vector Mod 700 to 1000 - - - - - 5 130 24-Lead LFCSP $7.59
    AD8341 Vector Mod 1500 to 2400 - - - - -150.5 4.75 to 5.25 125 24-Lead LFCSP $7.59
    AD8345 Mod 140 to 1000 80 0.5 0.2 - -155 2.7 to 5.5 65 16-Lead Tssop $5.02
    AD8346 Mod 800 to 2500 70 1 0.2 - -147 2.7 to 5.5 45 16-Lead Tssop $4.45
    AD8347 Demod 800 to 2700 65 1 0.3 69.5 - 2.7 to 5.5 64 28-Lead TSSOP $5.85
    AD8348 Demod 50 to 1000 75 0.5 0.25 45 - 2.7 to 5.5 58 28-Lead TSSOP $5.01
    AD8349 Mod 700 to 2700 160 0.3 0.1 - -156 5 135 16-Lead Tssop $5.02
    ADF9010 Mod 840 to 960 20 - - 0 -158 3.15 to 3.45 360 48-Lead LFCSP -
    ADL5370 Mod 250 to 1300 700 - - - -156 4.75 to 5.5 210 24-Lead LFCSP $5.04
    ADL5371 Mod 700 to 1300 700 - - - -156 4.75 to 5.5 175 24-Lead LFCSP $5.04
    ADL5372 Mod 1500 to 2500 700 - - - -158 4.75 to 5.5 175 24-Lead LFCSP $5.04
    ADL5373 Mod 2300 to 3000 700 - - - -156 4.75 to 5.5 175 24-Lead LFCSP $5.04
    ADL5374 Mod 2800 to 4000 700 - - - -155 4.75 to 5.5 175 24-Lead LFCSP $5.04
    ADL5375 Mod 400 to 6000 500 - - - -161 4.75 to 5.25 190 24-Lead LFCSP $5.04
    ADL5380 Demod 400 to 6000 - - - - - - - - $5.28
    ADL5382 Demod 700 to 2700 370 0.2 0.05 - - 4.75 to 5.25 220 24-Lead LFCSP $5.28
    ADL5385 Mod 50 to 2200 500 0.33 0.03 - -160 4.75 to 5.5 215 24-Lead LFCSP $5.04
    ADL5386 Mod 50 to 2200 - - - - -160 4.75 to 5.5 - 40-Lead LFCSP $5.29
    ADL5387 Demod 50 to 2000 240 0.4 0.1 - - 4.75 to 5.25 180 24-Lead LFCSP $5.28
    ADL5390 Vector Mod 20 to 2400 230 - - - -147 5 130 24-Lead LFCSP $7.59
    ADL5590 Mod 869 to 960 - - - - -157 4.75 to 5.25 170 36-Lead LFCSP -
    ADL5591 Mod 1805 to 1990 - - - - -157 4.75 to 5.25 170 36-Lead LFCSP -
    ADRF6701 Mod 400 to 1300 1,160 1 0.1 - -158 4.75 to 5.25 210 40-Lead LFCSP -
    ADRF6702 Mod 1200 to 2400 2,150 1 0.1 - -158 4.75 to 5.25 - 40-Lead LFCSP -
    ADRF6703 Mod 1600 to 2600 2,600 0.6 0.05 - -158 4.75 to 5.25 - 40-Lead LFCSP -
    ADRF6704 Mod 2200 to 3000 2,900 1 0.1 - -158 4.75 to 5.25 - 40-Lead LFCSP -
    ADRF6750 Mod 950 to 1575 150 - - 47 -148 4.75 to 5.25 310 56-Lead LFCSP -
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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.