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ADA4432-1WBCPZ-R7 数据表(PDF) 19 Page - Analog Devices |
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ADA4432-1WBCPZ-R7 数据表(HTML) 19 Page - Analog Devices |
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19 / 25 page  Data Sheet ADA4432-1/ADA4433-1 Rev. E | Page 19 of 25 PIN-COMPATIBLE ADA4432-1 AND ADA4433-1 The ADA4432-1 and ADA4433-1 are single-ended output and differential output, respectively, short-to-battery protected video filters for automotive applications. Each version shares a common package, the 8-lead LFSCP, which allows them to share a common pinout and footprint. This allows a designer to change from a single-ended output configuration to a differential output on the same PCB with only minimal change to the external resistor values and placements. Figure 48 and Figure 50 show the pin configuration of the ADA4432-1 and ADA4433-1 in 8-lead LFCSP packages. Figure 49 and Figure 51 show an example schematic configured for the ADA4432-1 and the ADA4433-1, respectively. Example Configuration for Package-Compatible PCB The single-ended output with the ADA4432-1 includes the following: • R1 matches the requirement for the source. • R2, R3, and R6 are not installed. • C3 is not installed. • R5 is chosen to match the receiver termination impedance. • R8 is 0 Ω to provide ground reference. The differential output with the ADA4433-1 includes the following: • R1 matches the requirement for the source. • R2 and R3 are chosen to provide the correct bias for −IN. • C3 is for the −IN bypass. • R5 and R6 are chosen to match the receiver termination impedance. • R8 is not installed. Figure 48. 8-Lead LFCSP Package Pin Configuration, ADA4432-1 Figure 49. Example Compatible Schematic Configured for the ADA4432-1 Figure 50. 8-Lead LFCSP Package Pin Configuration, ADA4433-1 Figure 51. Example Compatible Schematic Configured for the ADA4433-1 NOTES 1. NC = NO CONNECT. 2. THE EXPOSED PAD MAY BE CONNECTED TO THE GROUND PLANE. 3 +VS 4 OUT 1 NC 2 STB 6 GND 5 NC 8 IN 7 ENA ADA4432-1 TOP VIEW (Not to Scale) +VS OUT NC STB GND NC IN ENA ENA VIDEO INPUT GROUND REFERENCE CONDUCTOR POSITIVE OUTPUT CONDUCTOR R1 75Ω R3 DNI R2 DNI STB C3 DNI C1 2.2µF C2 0.1µF +VS +VS R6 DNI R5 75Ω R8 0Ω ADA4432-1 2 5 8 7 6 1 3 4 NOTES 1. THE EXPOSED PAD MAY BE CONNECTED TO THE GROUND PLANE. 3 +VS 4 +OUT 1 –IN 2 STB 6 GND 5 –OUT 8 +IN 7 ENA ADA4433-1 TOP VIEW (Not to Scale) +VS +OUT –IN STB GND –OUT +IN ENA ENA VIDEO INPUT NEGATIVE OUTPUT CONDUCTOR POSITIVE OUTPUT CONDUCTOR R1 75Ω R3 7.5kΩ R2 1.33kΩ STB C3 0.1µF C1 2.2µF C2 0.1µF +VS +VS R6 37.5Ω R5 37.5Ω R8 DNI ADA4433-1 2 5 8 7 6 1 3 4 |
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