Datasheet

Data Sheet ADA4432-1/ADA4433-1
Rev. A | Page 19 of 28
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+V
S
4OUT
1NC
2STB
6 GND
5 NC
8 IN
7 ENA
ADA4432-1
TOP VIEW
10597-031
(Not to
Scale)
+V
S
OUTNC STB
GND NCIN 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
+V
S
+V
S
R6
DNI
R5
75Ω
R8
0Ω
ADA4432-1
2
58 7 6
1 3 4
10597-033
NOTES
1. THE EXPOSED PAD MAY BE CONNECTED
TO THE GROUND PLANE.
3+V
S
4+OUT
1–IN
2STB
6 GND
5 –OUT
8 +IN
7 ENA
ADA4433-1
TOP VIEW
(Not to
Scale)
10597-030
+V
S
+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
+V
S
+V
S
R6
37.5Ω
R5
37.5Ω
R8
DNI
ADA4433-1
2
58 7 6
1 3 4
10597-032