TDA4856 Datasheet, PDF (45/56 Pages) NXP Semiconductors – I2C-bus autosync deflection controller for PC monitors

Philips Semiconductors
I²C-bus autosync deflection controller for
PC monitors
Printed-circuit board layout
Product specification
TDA4856
handbook, full pagewidth
further connections to other components
or ground paths are not allowed
external components of
horizontal section
external components of
vertical section
external components of
horizontal section
47 nF
2.2 nF
pin 25 should be the 'star point'
for all small signal components
no external ground tracks
connected here
TDA4856
47 pF
B-drive line in parallel
to ground
100 µF
12 V
external components
of driver stages
SMD
only this path may be connected
to general ground of PCB
MGS283
For optimum performance of the TDA4856 the ground paths must be routed as shown.
Only one connection to other grounds on the PCB is allowed.
Note: The tracks for HDRV and BDRV should be kept separate.
1999 Jul 13
Fig.29 Hints for printed-circuit board (PCB) layout.
45