ADL5380-29A-EVALZ AD [Analog Devices], ADL5380-29A-EVALZ Datasheet

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ADL5380-29A-EVALZ

Manufacturer Part Number
ADL5380-29A-EVALZ
Description
400 MHz to 6 GHz Quadrature Demodulator
Manufacturer
AD [Analog Devices]
Datasheet
FEATURES
Operating RF and LO frequency: 400 MHz to 6 GHz
Input IP3
Input IP2: >65 dBm @ 900 MHz
Input P1dB (IP1dB): 11.6 dBm @ 900 MHz
Noise figure (NF)
Voltage conversion gain: ~7 dB
Quadrature demodulation accuracy @ 900 MHz
Demodulation bandwidth: ~390 MHz
Baseband I/Q drive: 2 V p-p into 200 Ω
Single 5 V supply
APPLICATIONS
Cellular W-CDMA/GSM/LTE
Microwave point-to-(multi)point radios
Broadband wireless and WiMAX
GENERAL 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.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
30 dBm @ 900 MHz
28 dBm @1900 MHz
10.9 dB @ 900 MHz
11.7 dB @ 1900 MHz
Phase accuracy: ~0.2°
Amplitude balance: ~0.07 dB
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
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, V
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.
RFIN
RFIP
Quadrature Demodulator
FUNCTIONAL BLOCK DIAGRAM
BIAS
V2I
ENBL
©2009 Analog Devices, Inc. All rights reserved.
PHASE SPLITTER
ADJ
400 MHz to 6 GHz
QUADRATURE
Figure 1.
ADL5380
S
, (to increase supply
ADL5380
www.analog.com
IHI
ILO
LOIP
LOIN
QHI
QLO

Related parts for ADL5380-29A-EVALZ

ADL5380-29A-EVALZ Summary of contents

Page 1

... 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. 5.25 V supply. The supply current is adjustable by placing an external resistor from the ADJ pin to either the positive supply, V current and improve IIP3 ground (which decreases supply current at the expense of IIP3) ...

Page 2

... ADL5380 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Typical Performance Characteristics ............................................. 7 Low Band Operation .................................................................... 7 Midband Operation ................................................................... 11 High Band Operation ................................................................ 14 Distributions for f = 900 MHz ............................................... 17 LO Distributions for f = 1900 MHz ...

Page 3

... RFIP, RFIN driven differentially through a balun −5 dBm each input tone −5 dBm each input tone RFIN, RFIP terminated in 50 Ω LOIN, LOIP terminated in 50 Ω With a −5 dBm input interferer 5 MHz away Rev Page ADL5380 Min Typ Max 0.4 6 −10 − ...

Page 4

... ADL5380 Parameter DYNAMIC PERFORMANCE 1900 MHz Conversion Gain Input P1dB RF Input Return Loss Second-Order Input Intercept (IIP2) Third-Order Input Intercept (IIP3 Magnitude Imbalance IQ Phase Imbalance Noise Figure Noise Figure Under Blocking Conditions DYNAMIC PERFORMANCE 2700 MHz ...

Page 5

... Exposure to absolute maximum rating conditions for extended periods may affect 1370 mW device reliability. 53°C/W 150°C −40°C to +85°C −65°C to +125°C ESD CAUTION Rev Page ADL5380 ...

Page 6

... LOIP, LOIN ADJ 21, 22 RFIN, RFIP EP PIN 1 INDICATOR GND3 1 18 GND3 GND1 2 17 GND2 ADL5380 IHI 3 16 QHI TOP VIEW ILO 4 15 QLO (Not to Scale) GND1 5 14 GND2 VCC1 6 13 VCC2 NOTES CONNECT. 2. THE EXPOSED PAD SHOULD BE CONNECTED TO A LOW IMPEDANCE THERMAL AND ELECTRICAL GROUND PLANE ...

Page 7

... I CHANNEL Q CHANNEL 1 0 –1 –2 –3 –4 –5 –6 –7 –8 10 Figure 6. Normalized IQ Baseband Frequency Response Rev Page ADL5380 . –40° +25° +85° FREQUENCY (MHz) Figure 5. IQ Gain Mismatch vs. LO Frequency 100 BASEBAND FREQUENCY (MHz) ...

Page 8

... ADL5380 –40° +25° +85° FREQUENCY (MHz) Figure 7. Noise Figure vs. LO Frequency – –40° +25°C – +85°C A –3 –4 LO FREQUENCY (MHz) Figure 8. IQ Quadrature Phase Error vs. LO Frequency ...

Page 9

... Rev Page FREQUENCY (GHz) Characterization Board Through TC1-1-13 Balun 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 LO FREQUENCY (GHz) Figure 17. LO-to-RF Leakage vs. LO Frequency 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 RF FREQUENCY (GHz) Figure 18. RF-to-LO Leakage vs. RF Frequency ADL5380 ...

Page 10

... ADL5380 0 –2 –4 –6 –8 –10 –12 –14 –16 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 LO FREQUENCY (GHz) Figure 19. LO Port Return Loss vs. LO Frequency Measured on Characterization Board Through TC1-1-13 Balun Rev Page ...

Page 11

... 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 LO FREQUENCY (GHz) Figure 24. Noise Figure vs. LO Frequency –40° +25° +85° –1 –2 –3 –4 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 LO FREQUENCY (GHz) Figure 25. IQ Quadrature Phase Error vs. LO Frequency ADL5380 3.8 3.9 4.0 3.8 3.9 4.0 ...

Page 12

... ADL5380 INPUT IP3 SUPPLY CURRENT 0 1.0 1.5 2.0 2.5 3.0 3.5 V (V) ADJ Figure 26. IIP3, Noise Figure, and Supply Current vs –30 –25 –20 –15 –10 RF POWEL LEVEL (dBm) Figure 27. Noise Figure vs. Input Blocker Level, f (RF Blocker 5 MHz Offset) ...

Page 13

... LO FREQUENCY (GHz) Figure 32. LO Port Return Loss vs. LO Frequency Measured on Characterization Board Through Johanson Technology 3600 Balun 3.8 3.9 4.0 Rev Page ADL5380 ...

Page 14

... ADL5380 HIGH BAND OPERATION GHz to 6 GHz; Johanson Technology 5400BL15B050E balun on LO and RF inputs, the ADJ pin is open INPUT P1dB –40° +25° +85° 5.1 5.2 5.3 5.4 5.5 5.6 LO FREQUENCY (GHz) Figure 33. Conversion Gain and Input 1 dB Compression Point (IP1dB) vs. ...

Page 15

... Figure 44. RF Port Return Loss vs. RF Frequency Measured on Characterization Board Through Johanson Technology 5400 Balun Rev Page 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 LO FREQUENC Y (GHz) Figure 42. LO-to-RF Leakage vs. LO Frequency 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 RF FREQUENCY (MHz) Figure 43. RF-to-LO Leakage vs. RF Frequency 0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 RF FREQUENCY (GHz) ADL5380 5.9 6.0 5.9 6.0 5.9 6.0 ...

Page 16

... ADL5380 –0 –2 –4 –6 –8 –10 –12 –14 –16 5.1 5.2 5.3 5.4 5.5 5.6 LO FREQUENCY (GHz) Figure 45. LO Port Return Loss vs. LO Frequency Measured on Characterization Board Through Johanson Technology 5400 Balun 5.7 5.8 5.9 6.0 Rev Page ...

Page 17

... NOISE FIGURE (dB) Figure 50. Noise Figure Distributions 100 –40° +25° +85° –1.0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 QUADRATURE PHASE ERROR (Degrees) Figure 51. IQ Quadrature Phase Error Distributions ADL5380 –40° +25° +85°C A 12.0 12.5 0.6 0.8 1.0 ...

Page 18

... ADL5380 DISTRIBUTIONS FOR f = 1900 MHz LO 100 –40° +25° +85° INPUT IP3 (dBm) Figure 52. IIP3 Distributions 100 T = –40° +25° +85° IP1dB 70 GAIN ...

Page 19

... NOISE FIGURE (dB) Figure 62. Noise Figure Distributions 100 –40° +25° +85° –2.0 –1.5 –1.0 –0.5 0 0.5 1.0 QUADRATURE PHASE ERROR (Degrees) Figure 63. IQ Quadrature Phase Error Distributions ADL5380 I CHANNEL Q CHANNEL 70 75 13.5 14.0 1.5 2.0 ...

Page 20

... ADL5380 DISTRIBUTIONS FOR f = 3600 MHz LO 100 INPUT IP3 (dBm) Figure 64. IIP3 Distributions 100 GAIN (dB), IP1dB (dBm) Figure 65. Gain and IP1dB Distributions 100 –40°C ...

Page 21

... 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 NOISE FIGURE (dB) Figure 74. Noise Figure Distributions 100 T = –40° +25° +85° –3 –2 – QUADRATURE PHASE ERROR (Degrees) Figure 75. IQ Quadrature Phase Error Distributions ADL5380 ...

Page 22

... GND LOIP 1.5 kΩ to GND MIXERS LOIN The ADL5380 has two double-balanced mixers: one for the in- QHI phase channel (I channel) and one for the quadrature channel (Q channel). These mixers are based on the Gilbert cell design of four cross-connected transistors. The output currents from ...

Page 23

... BASIC CONNECTIONS Figure 78 shows the basic connections schematic for the ADL5380. POWER SUPPLY The nominal voltage supply for the ADL5380 and is applied to the VCC1, VCC2, and VCC3 pins. Connect ground to the GND1, GND2, GND3, and GND4 pins. Solder the exposed paddle on the underside of the package to a low thermal and electrical impedance ground plane ...

Page 24

... EVM proves to be directly proportional to the SNR. The ADL5380 shows excellent EVM performance for various modulation schemes. Figure 82 shows the EVM performance of the ADL5380 with a 16 QAM, 200 kHz low IF. 4.0 4.5 5.0 5 ...

Page 25

... Figure 83 shows the zero-IF EVM performance MHz IEEE 802.16e WiMAX signal through the ADL5380. The differential dc offsets on the ADL5380 are in the order of a few millivolts. However, ac coupling the baseband outputs with 10 μF capacitors eliminates dc offsets and enhances EVM performance. With a 10 MHz BW signal, 10 μF ac coupling capacitors with the 500 Ω ...

Page 26

... As an example, a second-order Butterworth, low-pass filter design is shown in Figure 88 where the differential load impedance is 500 Ω and the source impedance of the ADL5380 is 50 Ω. The normalized series inductor value for the 10-to-1, load-to-source impedance ratio is 0.074 H, and the normalized shunt capacitor is 14.814 F. For a 10.9 MHz cutoff frequency, the single-ended equivalent circuit consists of a 0.54 μ ...

Page 27

... A complete design example is shown in Figure 91. A sixth-order Butterworth differential filter having a 1.9 MHz corner frequency interfaces the output of the ADL5380 to that of an ADC input. The 500 Ω load resistor defines the input impedance of the ADC. The filter adheres to typical direct conversion W-CDMA applications where, 1 ...

Page 28

... Figure 91. Sixth-Order Low-Pass Butterworth, Baseband Filter Schematic RFIN BALUN 100pF 100pF 100pF GND3 GND3 2 GND1 GND2 3 IHI ADL5380 4 ILO 5 GND1 GND2 6 VCC1 VCC2 100pF 100pF 100pF BALUN LO_SE 10µ ...

Page 29

... Figure 93. Fourth-Order Low-Pass LTE Filter Magnitude Response Figure 94. Fourth-Order Low-Pass LTE Filter Group Delay Response Rev Page ADL5380 FREQUENCY (MHz FREQUENCY (MHz) ...

Page 30

... RF and image frequencies is desired. For example, assume a 915 MHz signal applied to the LO inputs of the ADL5380. To obtain a 15 MHz output blocker signal, the RF blocker generator is set to 930 MHz and the filters tuned such that there is at least attenuation from the generator at both the desired RF frequency (925 MHz) and the image RF frequency (905 MHz) ...

Page 31

... TUNABLE FILTER R1 SPECTRUM ANALYZER 50Ω Q LOW-PASS 6dB PAD FILTER I HP 87405 LOW NOISE PREAMP RF AMPLIFIER IN OUT 3dB PAD 3dB PAD VP GND AGILENT 11636A RF Q 6dB PAD 6dB PAD INPUT IEEE HP 8508A VECTOR VOLTMETER Rev Page ADL5380 R&S FSEA30 SWITCH MATRIX ...

Page 32

... ADL5380 EVALUATION BOARD The ADL5380 evaluation board is available. There are two versions of the board, optimized for performance for separate frequency ranges. For operation <3 GHz, an FR4 material-based board with the TC1-1-13 balun footprint is available. For operation between 3 GHz to 6 GHz, a Rogers® material-based RO3003 board with the Johanson Technology 3600BL14M050 balun (optimal for operation between 3 GHz and 4 GHz) footprint is available ...

Page 33

... T3x RF Input Interface. A 1:1 RF balun that converts the single-ended RF input to differential signal is used. , the device is active. S Rev Page ADL5380 Default Condition Not applicable R10x, R12x, R19x = 0 Ω (0603) C6x, C7x, C8x = 100 pF (0402), C9x, C10x, C11x = 0.1 μF (0603) P1x, R9x = DNI, R1x = DNI, R11x = 0 Ω ...

Page 34

... Figure 100. Midband/High Band Evaluation Board Top Layer Silkscreen THERMAL GROUNDING AND EVALUATION BOARD LAYOUT The package for the ADL5380 features an exposed paddle on the underside that should be well soldered to a low thermal and electrical impedance ground plane. This paddle is typically soldered to an exposed opening in the solder mask on the evaluation board ...

Page 35

... OUTLINE DIMENSIONS PIN 1 INDICATOR 1.00 12° MAX 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Temperature Range 1 ADL5380ACPZ-R7 –40°C to +85°C 1 ADL5380ACPZ-WP –40°C to +85°C 1 ADL5380-29A-EVALZ 1 ADL5380-30A-EVALZ RoHS Compliant Part. 0.60 MAX 4.00 BSC SQ 0.60 MAX 19 18 0.50 BSC TOP 3.75 EXPOSED VIEW BSC SQ (BO TTOMVIEW) 0.50 13 0.40 12 ...

Page 36

... ADL5380 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07585-0-7/09(0) Rev Page ...

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