HMP8156 Просмотр технического описания (PDF) - Intersil

Номер в каталоге

Компоненты Описание

производитель

HMP8156

NTSC/PAL Encoder

Intersil 

HMP8156

For proper operation, power supply decoupling is required. It

should be done using a 0.1µF ceramic capacitor in parallel

with a 0.01µF chip capacitor for each group of VAA pins to

ground. These capacitors should be located as close to the

VAA and GND pins as possible, using short, wide traces.

If a separate linear regulator is used to provide power to the

HMP8156 power plane, the power-up sequence should be

designed to ensure latchup will not occur. A separate linear reg-

ulator is recommended if the power supply noise on the VAA

pins exceeds 200mV. About 10% of the noise (that is less than

1MHz) on the VAA pins will couple onto the analog outputs.

FERRITE

BEAD

BULK AREA

CAPACITOR

VCC

8156

LP

FILTERS

ANALOG

CONN.

GND

VAA

PCB

FIGURE 31A. VCC AND VAA PLANES

8156

LP

FILTERS

ANALOG

CONN.

PCB

FIGURE 31B. COMMON GROUND PLANE

FIGURE 31. EXAMPLE POWER AND GROUND PLANES

31

Share Link: