ADL5390ACP-REEL7 Analog Devices Inc, ADL5390ACP-REEL7 Datasheet

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ADL5390ACP-REEL7

Manufacturer Part Number
ADL5390ACP-REEL7
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADL5390ACP-REEL7

Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
FEATURES
Matched pair of multiplying VGAs
Broad frequency range 20 MHz to 2.4 GHz
Continuous magnitude control from +5 dB to −30 dB
Output third-order intercept 24 dBm
Output 1 dB compression point 11 dBm
Output noise floor −148 dBm/Hz
Adjustable modulation bandwidth up to 230 MHz
Fast output power disable
Single-supply voltage 4.75 V to 5.25 V
APPLICATIONS
PA linearization and predistortion
Amplitude and phase modulation
Variable matched attenuator and/or phase shifter
Cellular base stations
Radio links
Fixed wireless access
Broadband/CATV
RF/IF analog multiplexer
GENERAL DESCRIPTION
The ADL5390 vector multiplier consists of a matched pair of
broadband variable gain amplifiers whose outputs are summed.
The separate gain controls for each amplifier are linear-in-
magnitude. If the two input RF signals are in quadrature, the
vector multiplier can be configured as a vector modulator or as
a variable attenuator/phase shifter by using the gain control pins
as Cartesian variables. In this case, the output amplitude can be
controlled from a maximum of +5 dB to less than –30 dB, and
the phase can be shifted continuously over the entire 360°
range. Since the signal paths are linear, the original modulation
on the inputs is preserved. If the two signals are independent,
then the vector multiplier can function as a 2:1 multiplexer or
can provide fading from one channel to another.
The ADL5390 operates over a wide frequency range of 20 MHz
to 2400 MHz. For a maximum gain setting on one channel at
380 MHz, the ADL5390 delivers an OP1dB of 11 dBm, an OIP3
of 24 dBm, and an output noise floor of −148 dBm/Hz. The gain
and phase matching between the two VGAs is better than 0.5 dB
and 1°, respectively, over most of the operating range.
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.
The gain control inputs are dc-coupled with a +/−500 mV dif-
ferential full-scale range centered about a 500 mV common
mode. The maximum modulation bandwidth is 230 MHz,
which can be reduced by adding external capacitors to limit the
noise bandwidth on the control lines.
Both the RF inputs and outputs can be used differentially or
single-ended and must be ac-coupled. The impedance of each
VGA RF input is 250 Ω to ground, and the differential output
impedance is nominally 50 Ω over the operating frequency
range. The DSOP pin allows the output stage to be disabled
quickly to protect subsequent stages from overdrive. The
ADL5390 operates off supply voltages from 4.75 V to 5.25 V
while consuming 135 mA.
The ADL5390 is fabricated on Analog Devices’ proprietary,
high performance 25 GHz SOI complementary bipolar IC
process. It is available in a 24-lead, Pb-free CSP package and
operates over a −40°C to +85°C temperature range. Evaluation
boards are available.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
CMRF
INMQ
INPQ
INMI
INPI
FUNCTIONAL BLOCK DIAGRAM
CMOP
VPRF
RF/IF Vector Multiplier
© 2004 Analog Devices, Inc. All rights reserved.
QBBP
IBBP
Figure 1.
IBBM
OBBM
DSOP
VPS2
ADL5390
www.analog.com
RFOP
RFOM

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ADL5390ACP-REEL7 Summary of contents

Page 1

FEATURES Matched pair of multiplying VGAs Broad frequency range 20 MHz to 2.4 GHz Continuous magnitude control from + −30 dB Output third-order intercept 24 dBm Output 1 dB compression point 11 dBm Output noise floor −148 dBm/Hz ...

Page 2

ADL5390 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ............................................. 7 General Structure ........................................................................... 11 Theory of Operation .................................................................. 11 Noise and Distortion.................................................................. 11 Applications..................................................................................... 12 Using ...

Page 3

SPECIFICATIONS = 50 Ω 25° 380 MHz, single-ended source drive to INPI and INPQ, and INMI and INMQ are ac-coupled common, unless otherwise noted. 66.5 Ω ...

Page 4

ADL5390 Parameter Output Noise Floor Output IP3 Output 1 dB Compression Point Input 1 dB Compression Point Gain Flatness Gain Matching Phase Matching Input Impedance Output Return Loss F = 900 MHz RF Maximum Gain Gain Conformance Output Noise Floor ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 2. Parameters Supply Voltage VPRF, VPS2 DSOP IBBP, IBBM, QBBP, QBBM RFOP, RFOM RF Input Power at Maximum Gain (INPI or INPQ, Single-Ended Drive) Equivalent Voltage Internal Power Dissipation θ (With Pad Soldered to Board) JA ...

Page 6

ADL5390 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 2, 3 QFLP, QFLM Q Baseband Input Filter Pins. Connect optional capacitor to reduce Q baseband gain control channel low- pass corner frequency ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS –5 –10 –15 –20 –25 –30 0 0.25 0.50 GAIN SETPOINT Figure 3. Gain Magnitude vs. Gain Setpoint, RF Frequency = 70 MHz, 140 MHz, 380 MHz, 900 MHz, 2400 MHz (Channel I or ...

Page 8

ADL5390 25 σ DASH LINE σ 20 –3 = SOLID LINE –5 –10 –15 –20 0 0.2 0.4 0.6 GAIN SETPOINT Figure 9. Channel-to-Channel Phase Matching vs. Gain Setpoint, RF Frequency = 70 MHz, ...

Page 9

FUNDAMENTAL –10 –20 –30 –40 –50 2ND HARMONIC –60 –70 –80 3RD HARMONIC –90 –100 0 100 200 300 400 500 600 700 DIFF. BASEBAND INPUT LEVEL (mV p-p) Figure 15. Baseband Harmonic Distortion, (Channel I and Channel Q), ...

Page 10

ADL5390 300 250 SHUNT CAPACITANCE (pF) 200 SHUNT RESISTANCE (Ω) 150 100 50 20 220 420 620 820 1020 1220 1420 1620 1820 2020 2220 F (MHz) RF Figure 21. S11 of RF Input (Shunt R/C Representation) ADL5390 SDD22 90 ...

Page 11

GENERAL STRUCTURE THEORY OF OPERATION The simplified block diagram given in Figure 26 shows a matched pair of variable gain channels whose outputs are summed and presented to the final output. The RF/IF signals propagate from the left to the ...

Page 12

ADL5390 APPLICATIONS USING THE ADL5390 The ADL5390 is designed to operate Ω impedance system. Figure 29 illustrates an example where the RF/IF inputs are driven in a single-ended fashion, while the differential RF out- put is converted ...

Page 13

RF OUTPUT AND MATCHING The RF/IF outputs of the ADL5390, RFOP and RFOM, are open collectors of a transimpedance amplifier that need to be pulled up to the positive supply, preferably with RF chokes, as shown in Figure 30. The ...

Page 14

ADL5390 The 3 dB bandwidth is set by choosing C following equation: × 45 kHz 10 nF ≈ 0.5 pF external This equation has been verified for values of C 0.1 µF (bandwidth settings of ...

Page 15

GENERALIZED MODULATOR The ADL5390 can be configured as a traditional IQ quadrature modulator linear vector modulator by applying signals that are in quadrature to the RF/IF input channels. Since the quadrature generation is performed externally, its accuracy ...

Page 16

ADL5390 3GPP2 C.S0010-B, Table 6.5.2.1) was applied to the ADL5390. A cavity-tuned filter was used to reduce noise from the signal source being applied to the device. The 4.6 MHz pass band of this filter is apparent in the subsequent ...

Page 17

QUADRATURE MODULATOR The ADL5390 can be used as a quadrature modulator by driving the RF I and Q inputs (INPI and INPQ) single-ended through phase splitter to serve as the LO input. I/Q modulation is applied to ...

Page 18

ADL5390 RBW 10kHz * VBW 300kHz * ATT 5dB SWT 4s REF –26.6dBm * * –30 POS –26.623dBm –40 – –60 AVG –70 –80 –90 –100 –110 –120 CENTER 880MHz 1.29MHz/ STANDARD: CDMA IS95C CLASS 0 FWD ...

Page 19

EVALUATION BOARD The evaluation board circuit schematic for the ADL5390 is shown in Figure 44. The evaluation board is configured to be driven from a single-ended 50 Ω source. Although the input of the ADL5390 is differential, it may be ...

Page 20

ADL5390 Table 4. Evaluation Board Configuration Options Component Function R7, R9, R11, R14, I Channel Baseband Interface. Resistors R7 and R9 may be installed to R15, R19, R20, accommodate a baseband source that requires a specific terminating R21, C15, C19, ...

Page 21

C7 R5 0.1µF 0Ω 0Ω RFIN_I 10nF 66.5Ω 10nF C6 10nF L2 0Ω RFIN_Q R22 C5 66.5Ω 10nF R4 0Ω 0.1µF 100pF IBBP IBBM C19 R9 R7 0.1µF (OPEN) (OPEN) R19 0Ω R21 ...

Page 22

ADL5390 Figure 45. Component Side Layout Figure 46. Component Side Silkscreen Rev Page ...

Page 23

... OUTLINE DIMENSIONS PIN 1 INDICATOR 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE Models Temperature Range 1, 2 ADL5390ACPZ-WP −40°C to +85°C 1 ADL5390ACPZ-REEL7 −40°C to +85°C ADL5390-EVAL Pb-free part waffle pack. 4.00 BSC SQ 0.60 MAX 0.50 BSC TOP 3.75 VIEW BSC SQ 0.50 ...

Page 24

ADL5390 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and regis- tered trademarks are the property of their respective owners. D04954–0–10/04(0) Rev Page ...

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