adl5240-evalz Analog Devices, Inc., adl5240-evalz Datasheet

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adl5240-evalz

Manufacturer Part Number
adl5240-evalz
Description
Manufacturer
Analog Devices, Inc.
Datasheet
Preliminary Technical Data
FEATURES
Operating frequency 100 MHz to 4000 MHz
Digitally controlled variable gain amplifier
Supports both serial and parallel interfaces
6-bit, 0.5 dB digital step attenuator
31.5 dB gain control range with ±0.25 dB step accuracy
Amplifier specifications:
Single supply operation from 4.75 V to 5.25 V
Low quiescent current 90 mA
Thermally efficient 32-Lead 5 x 5 mm LFCSP
GENERAL DESCRIPTION
The ADL5240 is a high performance digitally controlled
variable gain amplifier operating from 100 MHz to 4000 MHz.
The VGA integrates a high performance, 20 dB gain, internally
matched amplifier with a 6-bit digital step attenuator (DSA)
with 31.5 dB gain control range, 0.5 dB steps, and ±0.25 dB step
accuracy. The attenuation of the DSA can be controlled using a
serial or parallel interface.
The ADL5240 consumes just 90 mA and operates off a single
supply ranging from 4.75V to 5.25V. The VGA is packaged in a
thermally enhanced 5 x 5 mm 32-lead LFCSP, and is fully
Rev. PrC
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.
Gain: 19.0 dB @ 2 GHz
OIP3: 38 dBm @ 2 GHz
P1dB: 19.1 dBm @ 2 GHz
Noise figure: 3.3 dB @ 2 GHz
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
specified for operation from -40
evaluation board is available.
DSA_IN
RF/IF Digitally Controlled VGA
SEL
FUNCTIONAL BLOCK DIAGRAM
D0/CLK D1/DATA D2/LE
0.5dB
AMP_OUT
100 MHz – 4000 MHz
1dB
SERIAL/PARALLEL INTERFACE
©2011 Analog Devices, Inc. All rights reserved.
2dB
Figure 1
AMP
4dB
o
D3
C to +85
8dB
D4
0
C. A fully populated
16dB
AMP_IN
D5
ADL5240
www.analog.com
D6
VDD
DSA_OUT

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adl5240-evalz Summary of contents

Page 1

... The attenuation of the DSA can be controlled using a serial or parallel interface. The ADL5240 consumes just 90 mA and operates off a single supply ranging from 4.75V to 5.25V. The VGA is packaged in a thermally enhanced 32-lead LFCSP, and is fully Rev ...

Page 2

... ADL5240 SPECIFICATIONS VCC1 = 5V, VDD = 5V Table 1. Parameter OVERALL FUNCTION Frequency Range Amplifier FREQUENCY = 140MHz Gain vs. Frequency vs. Temperature vs. Supply Output 1 dB Compression Point Output Third-Order Intercept Noise Figure FREQUENCY = 400MHz Gain vs. Frequency vs. Temperature vs. Supply Output 1 dB Compression Point Output Third-Order Intercept ...

Page 3

... Minimum Attenuation ∆ MHz dBm/tone, Minimum Attenuation OUT Minimum Attenuation ∆ MHz dBm/tone, Minimum Attenuation OUT Minimum Attenuation ∆ MHz dBm/tone, Minimum Attenuation OUT Pin VDD Rev. PrC | Page ADL5240 Min Typ Max Unit 18.8 dB ±0.03 dB ±0.37 dB ±0.07 dB 18.7 dBm 31 ...

Page 4

... ADL5240 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage, VDD Lead Temperature (Soldering, 60 sec) Internal Power Dissipation θ (Exposed Paddle Soldered Down) JA Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...

Page 5

... Data bit in Parallel Mode (MSB) and Data in Serial Mode Connect to ground in Parallel Mode and Clock in Serial Mode Connect to supply for Parallel mode operation, connect to ground for serial mode operation Rev. PrC | Page VDD 23 GND 22 GND 21 DSA_OUT 20 GND 19 GND 18 GND 17 GND ADL5240 ...

Page 6

... ADL5240 TYPICAL PERFORMANCE CHARACTERISTICS Figure 3 Amp: Gain vs. Freq and Temperature Figure 4 Amp: P1dB and OIP3 vs. Freq and Temperature Figure 5 Amp: OIP3 vs. Pout and Freq Preliminary Technical Data Figure 6 Amp: Noise Figure vs. Freq -10 -20 -30 -40 0 500 1000 Figure 7 Amp: S parameters vs. Freq Figure 8 Supply Current vs ...

Page 7

... Rev. PrC | Page 500 1000 1500 2000 2500 3000 Frequency (MHz) Figure 11 DSA: S11 vs Freq TBD Figure 12 ADL5240 0 0 31.5 3500 4000 ...

Page 8

... ADL5240 SPI TIMING SEQUENCE D0/CLK D1/DATA D2/LE D6 Figure 13 is the timing sequence for the SPI function using a 6-bit operation. The clock can be as fast as 20MHz. In serial mode operation register B5 (MSB) comes in first and register B0 (LSB) comes in last. Table 4. Mode Selection Table Pin SEL 1 ...

Page 9

... Preliminary Technical Data OUTLINE DIMENSIONS PIN 1 INDICATOR 0.80 0.75 0.70 SEATING PLANE ORDERING GUIDE Model Temperature Range ADL5240ACPZ-R7 −40°C to +85°C ADL5240-EVALZ ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR09430-0-5/11(PrC) 5.10 0.30 5.00 SQ 0.25 4.90 0. 0.50 BSC ...

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