Rainbow Electronics MAX9532 - Manual (Page 10)

Power-Supply Bypassing
and Ground Management
The MAX9532 operates from a 3V to 3.6V single supply
and requires proper layout and bypassing. For the best
performance, place the components as close as possi-
ble to the device.
Proper grounding improves performance and prevents
any switching noise from coupling into the video signal.
Bypass the analog supply (V
DD
) with a 1µF capacitor to
GND, placed as close as possible to the device.
Bypass CPVSS to GND with a 1µF ceramic capacitor in
parallel with a 10nF low-ESR capacitor. The bypass
capacitors should be placed as close as possible to
the device.
MAX9532
DirectDrive Video Amplifier with
Short-to-Battery Protection
10 ______________________________________________________________________________________
JACKSENSE
IN
OUT
CLAMP
LINEAR
REGULATOR
A V = 4V/V
CHARGE PUMP
LPF
MAX9532 V DD
AMP
50 Ω
GND CPGND C1P C1N CPVSS V SS
C2
1 μF || 10nF
0.1 μF
3.3V
V
DD
C3
1 μF
DC
LEVEL SHIFT
DAC
DAC
Y
C
VIDEO
ASIC
50 Ω
Figure 5. Luma (Y) and Chroma (C) Signals are Added Together to Create a Composite Video Signal, Which is AC-Coupled into the
MAX9532