ANALOG DEVICES ADL5534 Service Manual

20 MHz to 500 MHz

FEATURES

Fixed gain of 20 dB
Operation up to 500 MHz
Input/output internally matched to 50 Ω
Integrated bias control circuit
OIP3 of 40 dBm at 70 MHz
P1dB of 20.4 dBm at 70 MHz
Noise figure of 2.5 dB at 70 MHz
Temperature and power supply stable
Single 5 V power supply

GENERAL DESCRIPTION

The ADL5534 contains two broadband, fixed-gain, linear
amplifiers and operates at frequencies up to 500 MHz. The
device can be used in a wide variety of equipment, including
cellular, satellite, broadband, and instrumentation equipment.

The ADL5534 has a fixed gain of 20 dB, which is stable over
frequency, temperature, power supply, and from device-to­device. The amplifiers are single-ended and internally matched
to 50 Ω. Only input/output ac-coupling capacitors, power supply
decoupling capacitors, and an external bias inductor are
required for operation of each amplifier.

Dual IF Amplifier

ADL5534

FUNCTIONAL BLOCK DIAGRAM

15 NC

14 NC

BIAS

BIAS

NC 6

CLIN2 7

Figure 1.

13 RFOUT1

12 CLIN1

11 NC

10 NC

9 NC

RFOUT2 8

06836-001

16 RFI N1

NC 1

NC 2

NC 3

NC

NC = NO CONNECT

ADL5534

4

RFIN2 5

The ADL5534 is fabricated on a GaAs HBT process. The
device is packaged in a 16-lead 5 mm × 5 mm LFCSP that
uses an exposed paddle for excellent thermal impedance.
The ADL5534 consumes 98 mA of current per amplifier on
a single 5 V supply, and is fully specified for operation from

−40°C to +85°C.

A similar amplifier, ADL5531 (available from Analog Devices,
Inc.) is the 20 dB gain single-channel version. Fully populated
evaluation boards for both the ADL5531 and ADL5534 are
available.

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] ©2008 Analog Devices, Inc. All rights reserved.

ADL5534

TABLE OF CONTENTS

Features .............................................................................................. 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications ..................................................................................... 3

Typical Scattering Parameters ..................................................... 4

Absolute Maximum Ratings ............................................................ 5

ESD Caution .................................................................................. 5

Pin Configuration and Function Descriptions ............................. 6

Typical Performance Characteristics ............................................. 7

REVISION HISTORY

6/08—Revision 0: Initial Version

Basic Connections .............................................................................9

Using Baluns to Combine Both Amplifiers Into a Single

Amplifier ..................................................................................... 10

ADC Driving Application ......................................................... 11

Soldering Information and Recommended PCB Land

Pattern .......................................................................................... 12

Evaluation Board ............................................................................ 13

Outline Dimensions ....................................................................... 15

Ordering Guide .......................................................................... 15

Rev. 0 | Page 2 of 16

ADL5534

SPECIFICATIONS

VPOS = 5 V and TA = 25°C, unless otherwise noted.

Table 1.

Parameter Conditions Min Typ Max Unit

OVERALL FUNCTION

Frequency Range 20 500 MHz
Gain (S21) 190 MHz 20.4 dB
Input Return Loss (S11) 190 MHz −18.0 dB
Output Return Loss (S22) 190 MHz −29.0 dB
Reverse Isolation (S12) 190 MHz −23.0 dB

FREQUENCY = 70 MHz

Gain 21.0 dB

vs. Frequency ±5 MHz ±0.04 dB
vs. Temperature −40°C ≤ TA ≤ +85°C ±0.20 dB

vs. Supply 4.75 V to 5.25 V ±0.20 dB
Output 1 dB Compression Point 20.4 dBm
Output Third-Order Intercept f = 1 MHz, output power (P
Noise Figure 2.5 dB
Device-to-Device Isolation Measured at output with input applied to alternate device −46.0 dB

FREQUENCY = 190 MHz

Gain 19.5 20.4 21 dB

vs. Frequency ±50 MHz ±0.15 dB

vs. Temperature −40°C ≤ TA ≤ +85°C ±0.20 dB

vs. Supply 4.75 V to 5.25 V ±0.17 dB
Output 1 dB Compression Point 20.6 dBm
Output Third-Order Intercept f = 1 MHz, output power (P
Noise Figure 2.7 dB
Device-to-Device Isolation Measured at output with input applied to an alternate device −38.0 dB

FREQUENCY = 380 MHz

Gain 19.0 19.8 20.5 dB

vs. Frequency ±50 MHz ±0.18 dB

vs. Temperature −40°C ≤ TA ≤ +85°C ±0.22 dB

vs. Supply 4.75 V to 5.25 V ±0.16 dB
Output 1 dB Compression Point 20.4 dBm
Output Third-Order Intercept f = 1 MHz, output power (P
Noise Figure 3.0 dB
Device-to-Device Isolation Measured at output with input applied to an alternate device −34.0 dB

POWER INTERFACE RFOUT1, RFOUT2 pins

Supply Voltage 4.75 5 5.25 V
Supply Current Per amplifier 98 110 mA

vs. Temperature −40°C ≤ TA ≤ +85°C ±15 mA
Power Dissipation 0.5 W

) = 0 dBm per tone 40.0 dBm

OUT

) = 0 dBm per tone 39.0 dBm

OUT

) = 0 dBm per tone 36.0 dBm

OUT

Rev. 0 | Page 3 of 16

ADL5534

TYPICAL SCATTERING PARAMETERS

VPOS = 5 V and TA = 25°C; the effects of the test fixture have been de-embedded up to the pins of the device.

Table 2.

S11 S21 S12 S22

Freq. (MHz)

20 −22.72 −102.04 21.79 174.78 −24.08 5.82 −18.56 −42.21
50 −20.40 −138.34 21.07 171.81 −23.40 6.92 −21.33 −71.17
100 −19.83 −160.87 20.66 169.90 −23.11 7.81 −25.56 −90.45
150 −19.95 −170.03 20.51 167.16 −23.01 9.36 −27.64 −95.94
200 −20.29 −174.24 20.39 164.06 −22.93 11.42 −27.78 −94.45
250 −20.72 −176.35 20.27 160.68 −22.85 13.45 −26.69 −91.22
300 −20.93 −175.04 20.16 157.31 −22.77 15.66 −24.58 −89.94
350 −21.06 −174.10 20.01 153.74 −22.69 17.74 −22.78 −90.89
400 −21.43 −171.87 19.85 150.30 −22.61 20.07 −20.76 −91.14
450 −21.58 −168.25 19.68 146.82 −22.51 22.24 −18.97 −92.39
500 −21.75 −163.79 19.45 142.72 −22.36 24.88 −17.10 −92.91

Magnitude (dB) Angle (°) Magnitude (dB) Angle (°) Magnitude (dB) Angle (°) Magnitude (dB) Angle (°)

Rev. 0 | Page 4 of 16

ADL5534

ABSOLUTE MAXIMUM RATINGS

Table 3.

Parameter Rating

Supply Voltage on RFOUT1, RFOUT2 5.5 V
Input Power on RFIN1, RFIN2 10 dBm
Internal Power Dissipation (Paddle Soldered) 900 mW
θJA (Junction-to-Air) 54°C/W
Maximum Junction Temperature 150°C
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C

Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.

ESD CAUTION

Rev. 0 | Page 5 of 16