ADA4431-1 Analog Devices, ADA4431-1 Datasheet
ADA4431-1
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ADA4431-1 Summary of contents
Page 1
... In addition, the part features SAG correction, which permits the use of smaller capacitors in applications with ac-coupled outputs. The ADA4431-1 is packaged in a low profile 16-lead LFCSP and operates in the industrial temperature range of −40°C to +85°C. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
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... ADA4431-1 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 Maximum Power Dissipation ..................................................... 5 ESD Caution.................................................................................. 5 REVISION HISTORY 8/07—Revision 0: Initial Version Pin Configuration and Function Descriptions..............................6 Typical Performance Characteristics ..............................................7 Theory of Operation .........................................................................9 Overview ........................................................................................9 Charge Pump Operation ..............................................................9 Load Detect ...
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... DIS = 0 V (disabled) Limited by output range f = 100 kHz, output referred MHz, DIS = MHz Modulated 10 step ramp, sync tip Modulated 10 step ramp, sync tip 100 kHz to 5 MHz Rev Page ADA4431-1 Min Typ Max Unit 4.7 7.2 mA 0.1 ...
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... ADA4431 3 25° p- Table 2. Parameter ELECTRICAL SPECIFICATIONS Quiescent Supply Current Normal Mode Load Searching Mode Disabled Mode Disable Pin Current Supply Voltage Range Input Voltage Input Resistance Input Capacitance Output Voltage Range Output Offset Voltage Power Supply Rejection Pass-Band Gain Input-to-Output Isolation— ...
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... Table 4. Thermal Resistance Package Type 16-lead LFCSP-UQ (CP-16-12) MAXIMUM POWER DISSIPATION The maximum safe power dissipation in the ADA4431-1 package is limited by the associated rise in junction temperature ( the die. At approximately 150°C, which is the glass J transition temperature, the plastic changes its properties ...
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... S 11 SUBS 12 GND 13 SAG 14 OUT 15 FB2 16 FB1 +V 12 GND 1 S ADA4431-1 2 SUBS IN 11 TOP VIEW DIS (Not to Scale) 9 CAP1 LDO 4 Figure 4. Pin Configuration Description Supply Voltage. Video Input. Disable Pin. High = charge pump on, floating = charge pump off, low = disabled. ...
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... CHARGE PUMP OFF –25 –30 –35 –40 –45 –50 0 FREQUENCY (MHz) Figure 9. PSRR vs. Frequency 10 0 –10 –20 –30 –40 –50 –60 0 FREQUENCY (MHz) Figure 10. Frequency Response for Various Temperatures ADA4431-1 100 100 +85°C +25°C 0°C –40°C 100 ...
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... ADA4431 +85°C –1 +25°C 0°C –40°C –2 –3 –4 –5 –6 –7 0.1 1 FREQUENCY (MHz) Figure 11. Flatness Response for Various Temperatures 0.5 1.0 1.5 DISABLE (DIS) PIN VOLTAGE (V) Figure 12. Supply Current vs. Disable (DIS) Pin Voltage 7 6 ACTIVE DISABLED ...
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... ADA4431-1 output is able to drive 2 V p-p video signals into two doubly terminated video loads (150 Ω each single 2.5 V supply. The ADA4431-1 has a gain of 2 when the SAG correction pin is tied directly to the output, which makes up for the 6 dB termination loss (see Figure 17, Output Option 1). ...
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... Jumper Block J4 exercises the disable pin (DIS). When a jumper is connected from the center pin to V+, the charge pump is enabled. Connecting the center pin to GND forces the ADA4431-1 into low power mode. With the jumper removed, the ADA4431-1 is enabled but the charge pump is disabled. ...
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... Figure 18. Evaluation Board—Front Figure 19. Evaluation Board—Back Rev Page ADA4431-1 ...
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... Model Temperature Range 1 ADA4431-1YCPZ-R2 −40°C to +85°C 1 ADA4431-1YCPZ-R7 −40°C to +85°C 1 ADA4431-1YCPZ-RL −40°C to +85° RoHS Compliant Part. ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.00 BSC SQ 13 ...