ADCREF0 datasheet(4/30 Pages) ATMEL

Part #	ADCREF0

Description	32-Bit AVR UC3 C Series Schematic Checklist

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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4 / 30 page

AVR32768

32157A-AVR-12/10

Table 4-1.

Single 3.3V power supply checklist.

Signal name

Recommended pin connection

Description

VDDANA

3.0V to 3.6V

RF EMI inductor

Decoupling/filtering capacitor,

100nF

(1) to GNDANA

Analog power supply

GNDANA

Connect to analog ground

Analog ground

VDDIO

3.0V to 3.6V

Powers I/O lines and the flash memory

VDDIN_5

3.0V to 3.6V

Input voltage for the 1.8V regulator

VDDIN_33

3.0V to 3.6V

USB I/O power supply

VDDCORE

Decoupling/filtering capacitors,

2.2µF

(1)(2) and 470pF (1)(2)

Stabilization output for the 1.8V regulator

Decoupling/filtering capacitors must be added to ensure regulator stability

GNDCORE

Connect to digital ground

GNDPLL

Connect to digital ground

GNDIO

Connect to digital ground

Notes:

1. These values are given only as a typical example

2. Decoupling capacitor should be placed as close as possible to the pin

ADCREF0 Datasheet(PDF) 4 Page - ATMEL Corporation

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