iCE40 UltraPlus Mobile Development Platform
Evaluation Board User Guide
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All other brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice.
FPGA-EB-02007-1.1
29
Figure A.8. Audio Circuitry
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
LATTICE SEMICONDUCTOR CORPORATION CONFIDENTIAL
Microphone Daughter Board
Expansion Connectors
iCE40 UltraPlus Mobile Development Platform
Rotate on PCB - Keep a 90 degree orientation
difference between J13 / J15
Slave Address = 001 0000
I2S MICROPHONES - 2 on-board
Bottom Side Microphones:
Follow datasheets for layout recommendations.
All four Microphones on Bottom Side of PCB
DNI
I2S_2 set to Right
DNI
I2S_2 set to Left
DNI
I2S_2 set to Left
DNI
I2S_2 set to Right
VCCIO2_iCE_B
VCCIO2_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
SPIVCCIO1_iCE_B
OSC_CLK
{2,3,4,5,10,13}
I2S_SD_mic1_mic2_card
{3}
I2S_SD_mic3_mic4
{3}
I2S_SD_mic5_mic6
{3}
I2S_SD_mic7
{2,3}
I2S_SD_amp
{3}
I2S_SCK_amp
{3}
I2S_WS_amp
{3}
I2C_amp_scl
{3}
I2C_amp_sda
{3}
I2S_SCK_mic
{3,8}
I2S_SD_mic1_mic2_onboard
{3}
I2S_WS_mic
{3}
I2S_SCK_mic
{3,8}
PDM_SD_mic1_mic2_onboard
{3}
Title
Size
Document Number
Rev
Date:
Sheet
of
D
Audio Components
B
8
14
Thursday, November 02, 2017
Title
Size
Document Number
Rev
Date:
Sheet
of
D
Audio Components
B
8
14
Thursday, November 02, 2017
Title
Size
Document Number
Rev
Date:
Sheet
of
D
Audio Components
B
8
14
Thursday, November 02, 2017
R175
0
C53
1u
C416
10u
J34
CUI_sj-3524-SMT
1
sleeve
3
ring
4
tip switch
2
tip
R66
100k
R218
0
R89
4.7k
U95
MP34DB01
CLK
1
LR
2
GND
5
VDD
3
DOUT
4
R62
10k
R219
0
R96
0
U19
INMP441
SCK
1
SD
2
WS
3
LR
4
G
N
D
5
GND1
6
VDD
7
CE
8
GND2
9
U43
MAX9850
LRCLK
1
BCLK
2
SDIN
3
D
V
D
D
4
M
C
L
K
5
D
G
N
D
6
ADD
7
GPIO
8
INR
9
INL
10
OUTR
11
OUTL
12
R
E
F
1
3
A
G
N
D
1
4
N
R
E
G
1
5
P
R
E
G
1
6
A
V
D
D
1
7
HPR
18
HPL
19
S
V
S
S
2
0
HPS
21
P
V
S
S
2
2
C
1
N
2
3
P
G
N
D
2
4
C
1
P
2
5
P
V
D
D
2
6
SCL
27
SDA
28
E
P
A
G
N
D
2
9
C57
1u
R80
0
C36
0.1u
R63
10k
C55
1u
R220
0
C60
0.1u
C413
0.1u
C59
1u
R81
0
R221
0
R171
0
C93
1u
R82
0
R222
0
C51
2.2u
U12
INMP441
SCK
1
SD
2
WS
3
LR
4
G
N
D
5
GND1
6
VDD
7
CE
8
GND2
9
R83
0
R172
0
C54
1u
R87
100k
R88
4.7k
U94
MP34DB01
CLK
1
LR
2
GND
5
VDD
3
DOUT
4
C46
0.1u
R173
0
C52
0.47u
C92
0.1u
R213
0
R174
0
C414
0.1u
J13
2x5 HEADER
PART_NUMBER = 0015910100
Manufacturer = Wurth
2
4
6
8
1
0
9
7
5
3
1
C415
10u
J15
2x5 HEADER
PART_NUMBER = 0015910100
Manufacturer = Wurth
2
4
6
8
10
9
7
5
3
1
R176
0
I2S_SCK_mic
I2S_WS_mic
HPS_amp
MCLK_amp
MCLK_amp
Charge_Pump_P
Charge_Pump_N
HPR_amp
HPL_amp
GPIO_amp
GPIO_amp
I2S_LR1
I2S_WS_mic
I2S_SCK_mic
I2
S
_
L
R
1
I2
S
_
L
R
2
I2S_LR2
I2
S
_
L
R
4
I2
S
_
L
R
3
I2S_LR3
I2S_LR4
VDD2
VDD1
VDD1
VDD2