ATSAM2195 ATMEL [ATMEL Corporation], ATSAM2195 Datasheet - Page 2

• Manufacturer Part Number: ATSAM2195
• Description: Audio Processing
• Manufacturer: ATMEL [ATMEL Corporation]

2. Pin Description
2.1
Table 2-1.
2
Pin Name
GND
GND
VD33
VD18
AGND
VA33
VA18
REGIN
PWRIN
Pins By Function – 44-lead QFN Package
ATSAM2195
Power Supply Group
Pin #
20, 31, 33
exposed die pad
21
19, 30
43, 44
4
2
34
38
Type
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
Function
DIGITAL GROUND
All pins should be connected to a ground plane
DIGITAL GROUND
Ground supply; down bonded to the exposed die pad (heatsink). It is
recommended, but not obligatory, to connect this pad to a ground plane during
PCB layout
I/O POWER SUPPLY
This pin should be connected to a nominal 3.3V power for 3.3V single supply
applications.
This pin should be connected to a nominal 1.8V power for 1.8V single supply
applications
CORE POWER SUPPLY
These pins should be connected to nominal 1.8V.
3.3V single supply application: If the built-in regulator is used, then these pins
should be connected to the output of the regulator OUTVC18 (pin 35).
1.8V single supply application: If the built-in power switch is used for minimum
power down consumption, then all these pins should be connected to the output
of the power switch PWROUT (pin 39).
ANALOG GROUND
These pins should be connected to an analog ground plane
DAC PERIPHERY ANALOG SUPPLY
3.3V single supply application: This pin should be connected to a nominal 3.3V
power through a serial inductor filter (better result) or a 10 ohm resistor.
1.8V single supply application: This pin should be connected to a nominal 1.8V
power through a serial inductor filter (better result) or a 10 ohm resistor.
DAC 1.8V ANALOG SUPPLY
This pin should be connected to a clean 1.8V.
3.3V single supply application: If the built-in regulator is used, then this pin should
be connected to the output of the regulator OUTVC18 (pin 35) through a serial
inductor filter (better result) or a 10 ohm resistor.
1.8V single supply application: If the built-in power switch is used, then this pin
should be connected to the output of the power switch PWROUT (pin 39) through
a serial inductor filter (better result) or a 10 ohm resistor.
Regulator input
This pin should be connected to a nominal 3.3V power for 3.3V single supply
applications.
This pin should be grounded for 1.8V single supply applications
Power switch input.
This pin should be left not connected for 3.3V single supply applications.
This pin should connected to a 1.8V nominal power for 1.8V single supply
applications
6308A–DRMSD–10-May-07