UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 246

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

244
(12) AV
Remark C1: 4.7 F to 10 F (reference value)
Connect a capacitor to the AV
has been stopped and is then started, the voltage applied to the AV
accuracy of the A/D conversion to drop. To prevent this, also connect a capacitor to the AV
Figure 13-19 shows an example of connecting a capacitor.
REF
pin
C2: 0.01 F to 0.1 F (reference value)
Connect C2 as close to the pin as possible.
Figure 13-19. Example of Connecting Capacitor to AV
C
1
REF
pin to minimize conversion errors due to noise. If an A/D conversion operation
CHAPTER 13 A/D CONVERTER
User’s Manual U14260EJ4V0UD
C
2
V
AV
AV
Clamp using a diode with a low
V
DD0
F
REF
SS
(0.3 V or lower).
REF
pin becomes unstable, causing the
REF
Pin
REF
pin.