ada4302-4acp-rl7 Analog Devices, Inc., ada4302-4acp-rl7 Datasheet

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ada4302-4acp-rl7

Manufacturer Part Number
ada4302-4acp-rl7
Description
Active Rf Splitter
Manufacturer
Analog Devices, Inc.
Datasheet
FEATURES
Single 5 V supply
54 MHz to 865 MHz CATV operating range
4.6 dB of gain per output channel
4.4 dB noise figure
25 dB isolation between output channels
−16 dB input return loss
CSO of −73 dBc (135 channels, 15 dBmV per tone)
CTB of −66 dBc (135 channels, 15 dBmV per tone)
1.3 GHz, −3 dB bandwidth
APPLICATIONS
Cable set-top boxes
Home gateways
CATV distribution systems
Cable splitter modules
GENERAL DESCRIPTION
The ADA4302-4 is used as an active element in applications
where a lossless signal split is required. Typical applications
include multituner cable set-top boxes, cable splitter modules,
multituner televisions, and home gateways where traditional
solutions have consisted of discrete passive splitters followed by
separate fixed gain amplifiers. The ADA4302-4 is a low cost
alternative solution that simplifies designs and improves system
performance by integrating a signal splitter element and gain
element into a single IC solution.
The ADA4302-4 features four differential outputs. The
differential architecture allows systems designed with the
ADA4302-4 to maintain excellent linearity throughout the
CATV band. The ADA4302-4 can also be configured for
applications that require fewer than four outputs. Outputs
can be configured independently from one another.
Rev. B
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: 781.329.4700
Fax: 781.461.3113
J1
–55
–60
–65
–70
–75
–80
–85
50
GND
Figure 2. Composite Second-Order (CSO) vs. Frequency
FUNCTIONAL BLOCK DIAGRAM
VCC
GND
+
100
VCC
VCC
T
T
A
© 2005 Analog Devices, Inc. All rights reserved.
A
ILN
VIP
VIN
ILP
= –40°C
= +85°C
T
Active RF Splitter
FREQUENCY (MHz)
A
Figure 1.
= +25°C
SPLITTER
GND
ADA4302-4
www.analog.com
VON4
VOP4
VON3
VOP3
VON2
VOP2
VON1
VOP1
1000

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ada4302-4acp-rl7 Summary of contents

Page 1

... Home gateways CATV distribution systems Cable splitter modules GENERAL DESCRIPTION The ADA4302-4 is used as an active element in applications where a lossless signal split is required. Typical applications include multituner cable set-top boxes, cable splitter modules, multituner televisions, and home gateways where traditional solutions have consisted of discrete passive splitters followed by separate fixed gain amplifiers ...

Page 2

... ADA4302-4 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 REVISION HISTORY 9/05—Rev. SpA to Rev. B Updated Format..................................................................Universal Changes to Circuit Description Section ........................................ 8 5/05—Rev. Sp0 to Rev. SpA Changes to Format .............................................................Universal Changes to Features ...

Page 3

... SPECIFICATIONS Ω 25°C, unless otherwise noted. The ADA4302-4 is characterized using a balun Table 1. Parameter DYNAMIC PERFORMANCE Bandwidth (−3 dB) Specified Frequency Range Gain (S21) Gain Flatness NOISE/DISTORTION PERFORMANCE Composite Triple Beat (CTB) Composite Second-Order (CSO) Cross Modulation (CXM) ...

Page 4

... ADA4302-4 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering 10 sec) Junction Temperature ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 5

... ILN 5 11 ILP Figure 3. 20-Lead LFCSP_VQ Pin Configuration Description Positive Output 4 Negative Output 4 Supply Pin Bias Pin Ground Positive Input Ground Negative Input Bias Pin Positive Output 3 Negative Output 3 Positive Output 2 Negative Output 2 Positive Output 1 Negative Output 1 Rev Page ADA4302-4 ...

Page 6

... ADA4302-4 TYPICAL PERFORMANCE CHARACTERISTICS –55 –60 – +85°C A – +25°C A – –40°C A –80 –85 50 100 FREQUENCY (MHz) Figure 4. Composite Second-Order (CSO) vs. Frequency –55 – +25°C A – –40° +85°C –70 A –75 50 100 FREQUENCY (MHz) Figure 5. Composite Triple Beat (CTB) vs. Frequency – ...

Page 7

... Figure 14. Output Return Loss vs. Frequency (S22) 240 235 230 225 220 215 210 205 200 1000 –60 Figure 15. Quiescent Supply Current vs. Temperature Rev Page ADA4302-4 100 FREQUENCY (MHz) Figure 13. Input Return Loss vs. Frequency (S11) 100 FREQUENCY (MHz) –40 – TEMPERATURE (°C) 1000 ...

Page 8

... The differential nature of the ADA4302-4 allows it to provide composite second-order (CSO) and composite triple beat (CTB) products that are −73 dBc and −66 dBc, respectively. The use of the SiGe process also allows the ADA4302-4 to achieve a noise figure (NF) that is less than 5 dB. CIRCUIT DESCRIPTION The ADA4302-4 has a low noise buffer amplifier that is followed by four parallel amplifiers ...

Page 9

... C14 0.01μF T5 AGND 5 1 75Ω TRACE C19 DNI 0.01μF 75Ω TRACE AGND Table 4. ADA4302-4ACPZ-EBSE Bill of Materials (BOM) Quantity Description 2 Coilcraft 0805LS-102X Chip Inductor 4 Mini-Circuit TC1-1-13M-2 Transformer 1 M/A-COM MABAES0029 Transformer 13 MLCC, 0.01 μF, C402 1 Tantalum, 10 μF, B Size 1 ADA4302-4ACPZ 5 SMA Connectors ...

Page 10

... AGND C14 0.01μ AGND 75Ω TRACE 4 J1 C19 0.01μF 75Ω TRACE Table 5. ADA4302-4ACPZ-EBDI Bill of Materials (BOM) Quantity Description 2 Coilcraft 0805LS-102X Chip Inductor 1 M/A-COM MABAES0029 Transformer 13 MLCC, 0.01 μF, C402 1 Tantalum, 10 μF, B size 1 ADA4302-4ACPZ 9 SMA Connectors 8 Impedance Matching Resistors, Insert as Needed 37.5Ω ...

Page 11

... OUTLINE DIMENSIONS PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Ordering Quantity ADA4302-4ACP-REEL 5,000 ADA4302-4ACP-RL7 1,500 ADA4302-4ACPZ-RL 1 5,000 1 ADA4302-4ACPZ-RL7 1,500 1 ADA4302-4ACPZ-R2 250 2 ADA4302-4ACPZ-EBSE 1 2 ADA4302-4ACPZ-EBDI Pb-free part. 2 Evaluation board contains Pb-free part. 4.00 BSC SQ 0.60 MAX TOP 3.75 VIEW BCS SQ 0.75 0.55 0.35 0.80 MAX 0.65 TYP ...

Page 12

... ADA4302-4 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05017–0–9/05(B) T Rev Page ...

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