11 Ghz to 20 Ghz, Tunable Band-Pass Filter

11 GHz to 20 GHz, Tunable

Band-Pass Filter Data Sheet ADMV8420

FEATURES FUNCTIONAL BLOCK DIAGRAM

Amplitude settling time: 200 ns

NIC

GND GND NIC NIC NIC

23 20

Wideband rejection: ≥20 dB 19 Single-chip implementation 24-lead, 4 mm × 4 mm, RoHS-compliant LFCSP GND 1 18 GND ADMV8420 APPLICATIONS GND 2 17 GND RFIN 3 16 RFOUT Test and measurement equipment Military radar and electronic warfare systems GND 4 15 GND Very small aperture terminal (VSAT) communications GND 5 14 GND GND 6 13 GND

8 9

1 PACKAGE 12

10 BASE

NIC NIC NIC

FCT GND

GND GND V

NIC = NOT INTERNALLY CONNECTED. 17199-001 Figure 1. GENERAL DESCRIPTION The ADMV8420 is a monolithic microwave integrated circuit voltage between 0 V to 15 V. This tunable filter is a smaller (MMIC), tunable band-pass filter that features a user-selectable alternative to switched filter banks and cavity tuned filters. The pass band frequency. The 3 dB filter bandwidth is approximately ADMV8420 has minimal microphonics due to the monolithic 20%, and the 20 dB filter bandwidth is approximately 40%. design and provides a dynamically adjustable solution in Additionally, the center frequency (fCENTER) varies between advanced communications applications. 11 GHz to 20 GHz by applying a center frequency control

Rev. 0 Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2019 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com ADMV8420 Data Sheet

TABLE OF CONTENTS Features ...... 1 Interface Schematics ...... 5 Applications ...... 1 Typical Performance Characteristics ...... 6 Functional Block Diagram ...... 1 Theory of Operation ...... 10 General Description ...... 1 Applications Information ...... 11 Revision History ...... 2 Typical Application Circuit ...... 11 Specifications ...... 3 Evaluation Printed Circuit Board (PCB) ...... 11 Absolute Maximum Ratings ...... 4 Outline Dimensions ...... 12 ESD Caution ...... 4 Ordering Guide ...... 12 Pin Configuration and Function Descriptions ...... 5

REVISION HISTORY 6/2019—Revision 0: Initial Version

Rev. 0 | Page 2 of 12 Data Sheet ADMV8420

SPECIFICATIONS

TA = 25°C, center frequency control voltage (VFCTL) is swept from 0 V to 15 V.

Table 1. Parameter Min Typ Max Unit Test Conditions/Comments FREQUENCY RANGE

fCENTER 11 20 GHz BANDWIDTH 3 dB 20 % REJECTION

Low-Side 0.8 × fCENTER GHz ≥20 dB

High-Side 1.2 × fCENTER GHz ≥20 dB

Reentry 2.3 × fCENTER GHz ≤30 dB LOSS Insertion Loss 5 dB Return Loss 8.5 dB DYNAMIC PERFORMANCE

Input Power at 5° Shift in Insertion Phase (VFCTL = 0 V) 10 dBm Input Third-Order Intercept (IP3) 31 dBm Group Delay 0.5 ns Phase Sensitivity 1.33 Rad/V Amplitude Settling 200 ns Time to settle to minimum insertion loss, within ≤0.5 dB of static insertion loss Drift Rate −1.07 MHz/°C RESIDUAL PHASE NOISE 1 MHz Offset −161 dBc/Hz TUNING

VFCTL 0 15 V

Center Frequency Control Current (IFCTL) ±1 mA

Rev. 0 | Page 3 of 12 ADMV8420 Data Sheet

ABSOLUTE MAXIMUM RATINGS Table 2. ESD CAUTION Parameter Rating Tuning

VFCTL −0.5 V to +15 V

IFCTL ±1 mA

Radio Frequency (RF) Input Power 27 dBm Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature for 1 Million Mean 150°C Time to Failure (MTTF) Nominal Junction Temperature 108°C (Temperature at Ground Pad = 85°C, Input Power (PIN) = 27 dBm) Electrostatic Discharge (ESD) Rating Human Body Model (HBM) 1000 V Field Induced Charge Device Model 1250 V (FICDM) Moisture Sensitivity Level (MSL) Rating MSL3 Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability.

Rev. 0 | Page 4 of 12 Data Sheet ADMV8420

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

GND NIC NIC NIC NIC GND

22 21

20 19

GND 1 18 GND GND 2 17 GND RFIN 3 ADMV8420 16 RFOUT GND 4 TOP VIEW 15 GND (Not to Scale) GND 5 14 GND

GND 6 13 GND

NIC NIC NIC

FCTL

GND GND V

NOTES 1. NIC = NOT INTERNALLY CONNECTED. THESE PINS ARE NOT CONNECTED INTERNALLY. HOWEVER, ALL DATA SHOWN HEREIN WAS MEASURED WITH THESE CONNECTED TO RF AND DC GROUND. 2. EXPOSED PAD. THE EXPOSED PAD MUST BE CONNECTED TO RF AND DC GROUND. 17199-002 Figure 2. Pin Configuration

Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1, 2, 4 to 7, 12 to 15, 17 to 19, 24 GND Ground. These pins must be connected to the radio frequency (RF) and dc ground. 3 RFIN RF Input. This pin is dc-coupled and matched to 50 Ω. Do not apply an external voltage to this pin. 8, 10, 11, 20 to 23 NIC Not Internally Connected. These pins are not connected internally. However, all data shown is measured with these pins connected to the RF and dc ground.

9 VFCTL Center Frequency Control Voltage. This pin controls the fCENTER of the device. 16 RFOUT RF Output. This pin is dc-coupled and matched to 50 Ω. Do not apply an external voltage to this pin. EPAD Exposed Pad. The exposed pad must be connected to RF and dc gound.

INTERFACE SCHEMATICS

4Ω 0.4nH 100Ω RFIN VFCTL

20pF 27pF 17199-005

17199-003

Figure 3. VFCTL Interface Schematic Figure 5. RFIN Interface Schematic

RFOUT GND 17199-006

17199-004 Figure 6. RFOUT Interface Schematic Figure 4. GND Interface Schematic

Rev. 0 | Page 5 of 12 ADMV8420 Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS 0 0 0V 7V –10 15V –5

–20 –10

–30 –15

–40 –20

–50 –25

–60 –30 S11, 0V S22, 0V BROADBAND RETURN LOSS (dB)

BROADBAND INSERTION LOSS (dB) S11, 7V –70 –35 S22, 7V S11, 15V S22, 15V

–80 –40 10 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 1 17199-107 RF FREQUENCY (GHz) RF FREQUENCY (GHz) 17199- Figure 7. Broadband Insertion Loss vs. RF Frequency at Various Voltages Figure 10. Broadband Return Loss vs. RF Frequency at Various Voltages

0 0 0V 7V 15V –5 –5 –10

–10 –15

–15 –20

–25

–20 RETURN LOSS (dB) INSERTION LOSS (dB) LOSS INSERTION –30 S11, 0V S22, 0V –25 S11, 7V –35 S22, 7V S11, 15V S22, 15V

–30 –40 1 5 10 15 20 25 30 7 9 11 13 15 17 19 21 23 25 27 11 17199- RF FREQUENCY (GHz) 17199-108 RF FREQUENCY (GHz) Figure 8. Insertion Loss vs. RF Frequency at Various Voltages Figure 11. Return Loss vs. RF Frequency at Various Voltages

0 0 –40°C +25°C +85°C –2 –5 –4

–6 –10 –8

–15 –10

–12 –20 RETURN LOSS (dB) –14 S11, –40°C S22, –40°C MINIMUM INSERTION LOSS (dB) LOSS INSERTION MINIMUM –16 –25 S11, +25°C S22, +25°C –18 S11, +85°C S22, +85°C

–30 –20 12 5 10 15 20 25 30 10 12 14 16 18 20 22 24 26 28 30 1 17199-109 RF FREQUENCY (GHz) RF FREQUENCY (GHz) 17199- Figure 9. Minimum Insertion Loss vs. RF Frequency at Various Temperatures, Figure 12. Return Loss vs. RF Frequency at Various Temperatures, VFCTL = 7 V VFCTL = 7 V

Rev. 0 | Page 6 of 12 Data Sheet ADMV8420

25 0 –40°C –40°C +25°C +25°C +85°C +85°C –2 20

–4

15 –6 (GHz)

–8

CENTER 10 f

–10

5 (dB) LOSS INSERTION MINIMUM –12

0 –14 13 16 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 V (V) V (V) 17199- FCTL FCTL 17199- Figure 13. fCENTER vs. VFCTL at Various Temperatures Figure 16. Minimum Insertion Loss vs. VFCTL at Various Temperatures

30 0 –40°C –40°C +25°C +25°C +85°C +85°C 25 –3

20 –6

–9 10 3dB BANDWIDTH (%)

MAXIMUM RETURN LOSS (dB) RETURN MAXIMUM –12 5

0 –15 17 14 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

V (V) V (V) 17199- FCTL 17199- FCTL Figure 14. 3 dB Bandwidth vs. VFCTL at Various Temperatures Figure 17. Maximum Return Loss in a 2 dB Bandwidth vs. VFCTL at Various Temperatures

1.00 –40°C 1.40 +25°C +85°C –40°C +25°C 0.95 1.35 +85°C TIO A

TIO 1.30

0.90 A

1.25 0.85 1.20

0.80 -SIDE REJECTION R 1.15 W

LO 1.10

0.75 HIGH-SIDE REJECTION R

1.05 0.70 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 1.00 18 V (V) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 FCTL 17199- V (V) FCTL 17199- Figure 15. Low-Side Rejection Ratio vs. VFCTL at Various Temperatures Figure 18. High-Side Rejection Ratio vs. VFCTL at Various Temperatures

Rev. 0 | Page 7 of 12 ADMV8420 Data Sheet

1200 0.8 –40°C 0V +25°C 7V +85°C 15V 1000 0.7

800 0.6 (MHz/V) (ns) Y Y A

600 0.5 DEL P

400 GROU 0.4 TUNING SENSITIVIT TUNING 200 0.3

0 0.2 19 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

V (V) RF FREQUENCY (GHz) 17199-122 FCTL 17199- Figure 19. Tuning Sensitivity vs. VFCTL at Various Temperatures Figure 22. Group Delay vs. RF Frequency at Various Voltages

1.0 40 –40°C +25°C +85°C 35 0.8 30

25 (ns)

Y 0.6 A 20 DEL P 0.4 15 INPUT IP3 (dBm) GROU 10 0.2 5 –40°C +25°C +85°C 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 V (V) V (V) FCTL 17199-123 FCTL 17199-120 Figure 20. Group Delay vs. VFCTL at Various Temperatures Figure 23. Input IP3 vs. VFCTL at Various Temperatures, PIN = 20 dBm

–100 0V 7V –110 15V

–120

–130

–140

PHASE NOISE (dBc/Hz) PHASE –150 L

–160 RESIDUA –170

–180 10 100 1k 10k 100k 1M 10M 100M

OFFSET FREQUENCY (Hz) 17199-121 Figure 21. Residual Phase Noise vs. Offset Frequency at Various VFCTL Voltages

Rev. 0 | Page 8 of 12 Data Sheet ADMV8420

40 22 7 VFCTL = 0V VFCTL = 1V 20 VFCTL = 3V APPROXIMATE 30 V = 7V 6 FCTL 18 fCENTER VFCTL = 10V VFCTL = 15V 20 16 5 (GHz) 14 10 4 CENTER

f 12 TE PHI (RAD/V)

A 10 0 3 A 8 LT DE PHASE SHIFT (Degrees) –10 2 6 DELTA PHI APPROXIM 4 –20 1 2

–30 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17199-124 INPUT POWER VFCTL 17199-125 Figure 24. Phase Shift vs. Input Power (dBm) Figure 25. Phase Sensitivity vs. VFCTL Voltages

Rev. 0 | Page 9 of 12 ADMV8420 Data Sheet

THEORY OF OPERATION The ADMV8420 is a MMIC band-pass filter that features a user-selectable pass band frequency. Varying the applied analog tuning voltage between 0 V and 15 V at VFCTL varies the fCENTER between 11 GHz and 20 GHz.

Rev. 0 | Page 10 of 12 Data Sheet ADMV8420

APPLICATIONS INFORMATION TYPICAL APPLICATION CIRCUIT PRIMARY SILKSCREEN PRIMARY SOLDER MASK Figure 26 shows the typical application circuit for the 0.5oz Cu PRIMARY SIDE (LAYER 1) ADMV8420. The RFIN and RFOUT pins are dc-coupled NOMINAL ARLON OR ROGERS CORE 10MILS ±1MIL (CRITICAL) FINISHED and require external 100 pF series capacitors (C1 and C2). BOARD 0.5oz Cu L2_GND PLANE (LAYER 2) THICKNESS 0.062" PREPREG AS REQUIRED

±10% 0.5oz Cu L3_GND PLANE (LAYER 3)

2 3

0 370HR

2 1 0.5oz Cu SECONDARY SIDE (LAYER 4) 1 18 17199-028 ADMV8420 Figure 27. The Cross-Sectional View of the ADMV8420-EVALZ PCB Layers C1 2 17 C2 100pF 100pF IN OUT 3 The circuit board in this application uses RF circuit design J1 16 J2

4 15 techniques. Signal lines must have 50 Ω impedance. The package ground leads and exposed pad must connect directly to the ground 5 14 plane (see Figure 27). A sufficient number of via holes connect the 6 13

1 top and bottom ground planes. The evaluation circuit board

1 1 C2 PACKAGE shown in Figure 28 is available from Analog Devices, Inc. upon BASE request. GND VFCTL J6 Table 4. Bill of Materials for the ADMV8420-EVALZ 17199-026 Figure 26. Typical Application Circuit Item Description EVALUATION PRINTED CIRCUIT BOARD (PCB) J1 to J2 PCB mount, Southwest 2.4 mm connector J6 to J7 Test points All RF traces are routed on Layer 1 (primary side). The remaining C2 Capacitor, 100 pF, 0402 three layers are ground planes that provide a solid ground for RF U1 ADMV8420 transmission lines, as shown in Figure 27. The top dielectric PCB1 08-0512982 evaluation PCB material is Rogers 4350, which offers low loss performance. The prepreg material in Layer 2 attaches the Isola 370HR core layer to 1 Circuit board material is Arlon 25FR or Rogers 25FR. Rogers 4350 is the laminate on top of Arlon 25FR or Rogers 25FR. copper traces layers. Both the prepreg material and the Isola 2 The raw, bare PCB identifier is 08-051298. Reference the ADMV8420 when 370HR core layer achieve the required board finish thickness. ordering the complete evaluation PCB.

Figure 28. Evaluation PCB, Top Layer Outline Dimensions

Rev. 0 | Page 11 of 12 ADMV8420 Data Sheet

OUTLINE DIMENSIONS

DETAIL A (JEDEC 95) 4.10 0.30 4.00 SQ PIN 1 0.25 INDICATOR 3.90 0.18 AREA PI N 1 IN D IC ATO R AR E A OP T IO N S 19 24 (SEE DETAIL A) 18 1

0.50 BSC 2.70 EXPOSED PAD 2.60 SQ 2.50

13 6 0.50 12 7 TOP VIEW BOTTOM VIEW 0.20 MIN 0.40 0.30 0.80 FOR PROPER CONNECTION OF 0.75 SIDE VIEW THE EXPOSED PAD, REFER TO 0.05 MAX 0.70 THE PIN CONFIGURATION AND 0.02 NOM FUNCTION DESCRIPTIONS COPLANARITY SECTION OF THIS DATA SHEET. SEATING 0.08 PLANE 0.20 REF 09-07-2018-A PKG-004273/5069 COMPLIANT TO JEDEC STANDARDS MO-220-WGGD-8 Figure 29. 24-Lead Lead Frame Chip Scale Package [LFCSP] 4 mm × 4 mm Body and 0.75 mm Package Height (CP-24-15) Dimensions shown in millimeters ORDERING GUIDE Model1 Temperature Range Package Description Package Option ADMV8420ACPZ −40°C to +85°C 24-Lead LFCSP CP-24-15 ADMV8420ACPZ-R5 −40°C to +85°C 24-Lead LFCSP, 7” Tape and Reel CP-24-15 ADMV8420-EVAL Evaluation Board

1 All models are RoHS-compliant parts.

Rev. 0 | Page 12 of 12 Mouser Electronics

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