ATSAM4S-EK2 Atmel, ATSAM4S-EK2 Datasheet - Page 17

• Manufacturer Part Number: ATSAM4S-EK2
• Description: Development Boards & Kits - ARM EVAL KIT SAM4S8 & SAM4S16
• Manufacturer: Atmel

Specifications of ATSAM4S-EK2

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: SAM4SD32C
• Core: ARM Cortex M4
• Interface Type: RS-232, USB
• Operating Supply Voltage: 5 V

4.3.10.2 Headphone Output
SAM4S-EK2 User Guide
Figure 4-12. Microphone Input
The SAM4S-EK2 evaluation kit supports mono/stereo audio playback driven by a TPA0223 audio ampli-
fier connected to two DAC channels of the microcontroller.
The TPA0223 is a 2W mono Bridge-Tied-Load (BTL) amplifier designed to drive speakers with as low as
4 Ohm impedance. The amplifier can be reconfigured on the fly to drive two stereo Single-Ended (SE)
signals into head phones.
Figure 4-13. Headphone Output
PB 13
AG ND
AG ND
C6 3
22 uF
C7 3
22 uF
+5 V
VCC3 3
AUDIO _O UTL
AV DD
AG ND
JP 29
R7 7
47 0R
R7 8
1K
R8 5
1K
R8 8
47 0R
MIC1
SV B6 050
Te st P ad S Q-4 0TH
C8 4
C8 8
2
C6 7
1u F
C6 8
1u F
0.4 7uF
0.4 7uF
TP 12
DG ND
1K
1K
R7 9
R8 2
C7 9
1u F
AG ND
AG ND
C7 7
4.7 uF
FB 3
BN03K 31 4S3 00R
JP 17
JP 19
C8 5
C6 9
1n F
AG ND
AV DD
AG ND
0.4 7uF
AG ND
He ade r2
He ade r2
+
R9 0
10 0K
R9 3
10 0K
C7 2
1n F
C8 0
10 uF
R9 8
R9 9
R1 00
R1 04
R1 05
R8 0
1K
R8 4
1K
VDD_ AMP
JP14 and JP15 should be set
or removed together
C8 2
10 0nF
33 K
47 K
33 K
47 K
33 K
R8 6
47 K
JP 15
He ade r2
3
5
1
9
R8 7
47 K
MN13
TP A02 23DGQ
VDD
RIN
MO NO -IN
LIN
AU DIO O UT
2
3
7
6
5
AG ND
MN11
TS 922
R7 5
R7 6
IN1-
IN1+
OUT2
IN2-
IN2+
SHUTD0WN
AU DIO IN
BY PA SS
RO /MO +
LO /MO -
ST/MN
GND
47 K
47 K
6
10
7
2
4
8
OUT1
VCC
GND
JP 14
AG ND
1
8
4
C6 2
10 0pF
C8 6
C8 1
C8 3
R9 5
R9 7
R1 01
R1 03
He ade r2
0.4 7uF
AV DD
AG ND
R8 1
10 0R
22 0uF-TA N-6 .3V
22 0uF-TA N-6 .3V
C7 4
10 0nF
1K
1K
10 0K
10 0K
AG ND
AG ND
FB 2
BN03K 31 4S3 00R
Evaluation Kit Hardware
R9 1
0R
C7 1
22 nF
AG ND
R1 02
JP 20
He ade r2
VCC3 3
DG ND
11176A–ATARM–24-Sep-12
AG ND
R8 3
0R
10 0K
1
2
5
4
3
2
1
J1 0
J1 1
Ph one jack Ste reo 3.5
VDD_ AMP
AG ND
C8 7
1u F
PB 0
4-10