MB91F613 datasheet(27/104 Pages) FUJITSU

27 / 104 page

MB91610 Series

DS07-16907-2E

■ HANDLING DEVICES

• Power supply pins

In products with multiple VCC and VSS pins, respective pins at the same potential are interconnected within the

device in order to prevent malfunctions such as latch-up. However, all of these pins should be connected externally

to the power supply or ground lines in order to reduce electromagnetic emission levels, to prevent abnormal

operation of strobe signals caused by the rise in the ground level, and to conform to the total output current rating.

Moreover, connect the current supply source with the VCC and VSS pins of this device at low impedance.

It is also advisable that a ceramic capacitor of approximately 0.1

μF be connected as a bypass capacitor between

VCC and VSS near this device.

• Crystal oscillator circuit

Noise near the X0 and X1 pins may cause the device to malfunction. Design the printed circuit board so that X0,

X1, the crystal oscillator (or ceramic oscillator), and the bypass capacitor to ground are located as close to the

device as possible.

It is strongly recommended that the PC board artwork be designed such that the X0 and X1 pins are surrounded

by ground plane as this is expected to produce stable operation.

• OSDC output pin

The OSDC output pins (R0 to R4, G0 to G5, B0 to B4, VOA0 to VOA2, VOB, DCKO) are high-speed corresponded

output pin.

Adjust the signal waveform such as by inserting damping resistor on the board as needed.

• Using an external clock

When using an external clock, the clock signal should be input to the X0 pin only and the X1 pin should be kept

open.

• C Pin

As MB91610 series includes an internal regulator, always connect a bypass capacitor of approximately 4.7

μF

to the C pin for use by the regulator.

• Example of Using an External Clock

Open

MB91610

series

4.7 µF

GND

VSS

MB91610

series

MB91F613 Datasheet(PDF) 27 Page - fujitsu semiconductor