Texas Instruments TAS5806MEVM User manual

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TAS5806MEVM User's Guide
User's Guide
SLAU524–May 2019
TAS5806MEVM User's Guide
This user’s guide describes the operation of the TAS5806M Evaluation Module (EVM). The EVM is
connected to the PurePath™ Console Motherboard (PPCMB). The main contents of this document are:
• Hardware descriptions and implementation
Required equipment and accessories:
• TAS5806MEVM
• PurePath Console Motherboard
• A USB micro type-B cable
• Power supply unit (PSU)
• Speakers and cables
• Desktop or laptop running Microsoft®Windows®7, Windows 8, or Windows 8.1
• Audio source: This can be a DVD player with appropriate SPDIF cable or Playback Media from
Windows 7, Windows 8 or Windows 8.1.
Trademarks
PurePath is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.

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1 Hardware Overview
The TAS5806MEVM showcases the latest TI digital input Class-D closed-loop amplifier. The TAS5806M is
an inductor-less digital input stereo Class-D audio amplifier with enhanced processing and low power
dissipation. The EVM is used in conjunction with the PurePath Console Motherboard (PPCMB). The
PVDD supply is provided via the TAS5806MEVM (Figure 1) and is regulated to 5 VDC and 3.3 VDC on
the PPCMB. The PPCMB provides the I2S, I2C, and 3.3 VDC to the TAS5806MEVM.
Figure 1. TAS5806MEVM
1.1 Features
The EVM has the following features:
• 96-kHz input sample rate support
• 2.0, mono and 2.1 capable
• Operates in BTL or PBTL
• PurePath Console Motherboard provides flexible input signal routing (USB, SPDIF, and analog)
• Demonstration, evaluation and development environment via the PurePath Console 3 software (GUI)
1.2 Functions
The TAS5806MEVM is controlled by the PPCMB. The digital audio data input to the TAS5806MEVM is
sent from PPCMB and is selectable from USB audio, optical SPDIF, coaxial SPDIF, PSIA (external I2S)
and analog ADC sources.
1.3 Detailed Operations
Upon power-on, the PPCMB uses USB audio input (default). The I2S signals LRCLK, SCLK, SDIN and
MCLK come from the TAS1020B.

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foobar2000 or similar non-processing media source can be used to stream audio. The TAS1020B
enumerates as the following device on a Microsoft Windows operating system (OS): USB audio (USB-
AudioEVM) (See Figure 2).
Figure 2. Device Manager

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USB audio output quality can be configured as shown in Figure 3. Users must select "2 channel, 16 bit,
48000 Hz (DVD Quality)".
Figure 3. Default Format

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TAS5806MEVM User's Guide
2 Hardware Setup
Use the following steps when setting up the hardware:
Step 1. Connect the PPCMB to the TAS5806MEVM.
Step 2. Connect speakers to the TAS5806MEVM.
Step 3. Connect a PSU to the TAS5806MEVM and turn on the power. 5-V and 3.3-V LEDs (Yellow)
are illuminated. The USB Lock LED (Blue) is also illuminated.
Step 4. Plug in a USB cable from the PC to the PPCMB.
Step 5. If an optical SPDIF source is used, the blue SPDIF clock-locked LED is illuminated.
2.1 I2C Device Addresses
The default I2C addresses on the EVM are set to 0x58 for the top device (U1) and 0x5A for the bottom
one (U2).
3 Troubleshooting
3.1 Power Cycle
To perform a power cycle, disconnect both the USB cable and the power supply from the board.

GND
GND
GND
GND
OUTA1+
OUTA1-
OUTB1+
OUTB1-
GND GND GND
OUT_A1+
OUT_B1-
OUT_A1-
OUT_B1+
GND GND GND
BST_A1+
GND
4.7uF
C10
0.1uF
C20
GND GND
1uF
C21
1uF
C16GND
BST_A1-
BST_B1+
BST_B1-
SDOUT1
TO CONTROLLER
SDOUT1
J2
OUT1A
J4
OUT1B
PVDD1 PVDD1
4.70k
R9
PDN1
SCLK
SCL
SDA
SCL
LRCLK
SCLK
SDIN1
ADR/FAULT1
PDN1
LRCLK
SDA
SDIN1
ADR/FAULT1
TP1
ADR/FAULT1
TP2
PDN1
FROM
0.1uF
C11
GND GND
1uF
C14
GND
1uF
C23
1uF
C22
1 2
J6
DVDD1
J3
PVDD1
PVDD1VIN
3.3V DVDD1 DVDD1
DVDD1
DVDD1
ADR/FAULT
10
AVDD
30
DGND 12
DVDD
9
PAD 39
OUT_A- 2
BST_A+ 4
OUT_A+ 5
BST_A- 1
OUT_B+ 34
OUT_B- 37
BST_B+ 35
BST_B- 38
PGND 3
PGND 36
AGND 31
DGND 8
PVDD
32
PVDD
33
PVDD
6
PVDD
7
VR_DIG
11
SDIN
15 SCLK
14 LRCLK
13
SDA
27
SCL
28
PDN
29
SDOUT 26
NC 24
HP_GND 16
HPVDD
17
HPR_IN
18 HPL_IN
19
HPR_OUT 20
HPL_OUT 21
HPVSS 22
CPN 23
CPP 25
TAS5806MDCPR
U1
CONTROLLER
0.1uF
C5
0.1uF
C6
L1
1000pF
C9
1000pF
C13
68
R13
GND
L2
L3
L4
1000pF
C24
1000pF
C25
1000pF
C28
1000pF
C19
68
R14
GND
1000pF
C26
68
R15
GND
1000pF
C27
68
R16
GND
TO CONTROLLER
I2C Address = 0x58
35V
22uF
C3
35V
22uF
C4
35V
22uF
C7
35V
22uF
C8
0.22uF
C12
0.22uF
C17
0.22uF
C15
0.22uF
C18
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4 Board Layouts, Bill of Materials, and Schematic
This section includes the EVM schematics, board layouts and bill of materials.
4.1 Schematics
Figure 4 to Figure 6 illustrate the schematics for this EVM.
Figure 4. TAS5806MEVM Schematic (1 of 3)

GND
GND
GND
GND
4.7uH
L6
0.68uF
C29
0.68uF
C38
4.7uH
L5
4.7uH
L8
4.7uH
L7
0.68uF
C52
0.68uF
C41
OUTA2+
OUTA2-
OUTB2+
OUTB2-
GND GND GND
OUT_A2+
OUT_B2-
OUT_A2-
OUT_B2+
GND GND GND
BST_A2+
GND
4.7uF
C39
0.1uF
C40
GND GND
1uF
C46
1uF
C51GND
BST_A2-
BST_B2+
BST_B2-
SDOUT2
TO CONTROLLER
SDOUT2
J8
OUT2A
J12
OUT2B
PVDD2 PVDD2
15.0k
R21
SDA
SCL
LRCLK
SCLK
SDIN2
ADR/FAULT2
PDN2
TP10
ADR/FAULT2
TP11
PDN2
FROM
HPRIN
HPLIN
0.1uF
C50
GND GND
1uF
C49
GND
1uF
C54
1uF
C53
GND
HPL_OUT
HPR_OUT
1 2
J11
DVDD2
J7
PVDD2
PVDD2VIN
3.3V DVDD2 DVDD2
DVDD2
DVDD2
ADR/FAULT
10
AVDD
30
DGND 12
DVDD
9
PAD 39
OUT_A- 2
BST_A+ 4
OUT_A+ 5
BST_A- 1
OUT_B+ 34
OUT_B- 37
BST_B+ 35
BST_B- 38
PGND 3
PGND 36
AGND 31
DGND 8
PVDD
32
PVDD
33
PVDD
6
PVDD
7
VR_DIG
11
SDIN
15 SCLK
14 LRCLK
13
SDA
27
SCL
28
PDN
29
SDOUT 26
NC 24
HP_GND 16
HPVDD
17
HPR_IN
18 HPL_IN
19
HPR_OUT 20
HPL_OUT 21
HPVSS 22
CPN 23
CPP 25
TAS5806MDCPR
U2
CONTROLLER
0.1uF
C32
0.1uF
C33
I2C Address = 0x5A
1000pF
C36
68
R17
1000pF
C44
68
R19
GND
GND
1000pF
C37
68
R18
GND
1000pF
C45
68
R20
GND1uF
C56
1uF
C57
PDN2
SCLK
SCL
LRCLK
SDA
SDIN2
ADR/FAULT2
HPL_IN
HPR_IN
390uF
C59
GND
390uF
C55
GND
3
2
1
J5
HP OUT
35V
22uF
C30
35V
22uF
C31
35V
22uF
C34
35V
22uF
C35
0.22uF
C42
0.22uF
C47
0.22uF
C43
0.22uF
C48
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Figure 5. TAS5806MEVM Schematic (2 of 3)

GND GND
SDA-PPCMB_OUT
SCL-PPCMB_OUT
(PPCMB-GPIO8)
A0
1
A1
2
A2
3
VSS
4SDA 5
SCL 6
WP 7
VCC 8
U3
EEPROM_8P
(PPCMB-GPIO3)
GND
3.3V
10.0k
R2
3.3V
10.0k
R4
10.0k
R3
DNP
3.3V
GND
(PPCMB-GPIO7)
TO DUTs
TO DUT
SCLK
LRCLK
FROM DUT
(PPCMB-GPIO9)
ADR/FAULT1 (PPCMB-GPIO0)
(PPCMB-GPIO1)
GND
0R7
0
R8
TO DUT
3.3V
2.20k
R5
3.3V
2.20k
R6
SDA-PPCMB_OUT
SCL-PPCMB_OUT
3.3V
Green
D1 3.3V
332
R1
GND
SCLK
LRCLK
SDOUT
3.3V
SDIN1
SDIN1
SDIN1
LRCLK
SCLK
SDOUT
SCL
SDA
GND
GND
SCL
SDA
TP5 SDA
ADR/FAULT1
GND 101
GND 102
GND 103
GND 104
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
J1A
GND 105
GND 106
GND 107
GND 108
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
J1B
HPRIN
HPLIN
VIN
PVDD RANGE
4.5-26.4VDC
GND
1
J9
VIN
1
J10
GND
VIN
PDN1
PDN2
SDOUT2
GND GND
49.9
R11
A1
B2
Y
3
GND 4
Y
5
A/B 6
G
7
VCC
8
U4
74LVC2G157DCT
SDOUT1
10.0k
R12
GND
SDOUT2SDOUT
FROM DUT
HPRIN
HPLIN
SDOUT1
SDOUT-SEL
GND
ADR/FAULT2 ADR/FAULT2
TP4 SCL
3.3V
3.3V
10.0k
R10
10.0k
R22
3.3V 3.3V
10.0k
R23
PDN2
PDN1
GND
10.0k
R24
GND
GND GND
49.9
R25
A1
B2
Y
3
GND 4
Y
5
A/B 6
G
7
VCC
8
U5
74LVC2G157DCT
SDIN1
SDIN-SEL
SDIN2
SDIN2
10.0k
R26
TO DUTS
GND
3.3V
SDIN-SEL
3.3V
3.3VSDOUT1
0.1uF
C1
16V
0.1uF
C2
16V
0.1uF
C58
SDOUT-SEL
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Figure 6. TAS5806MEVM Schematic (3 of 3)

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4.2 Board Layouts
Figure 7 and Figure 8 illustrate the board layouts for the EVM.
Figure 7. TAS5806MEVM Top Composite Assembly

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Figure 8. TAS5806MEVM Bottom Composite Assembly