Figure 23. Audio Codec Cirrus And Connectors - ST STM32F746G-DISCO User Manual

3V3
1V8
Jack in blue
R47 10K
U20 RIGHT
CN11
1 2
VDD LR
3
CLK
5 4
GND DOUT
MP34DT01
PJ3028B-3_BE
U21 LEFT
1 2
VDD LR
3
CLK
5 4
GND DOUT
MP34DT01
First Stage
R9 R8
RCA in Yellow for SPDIF input
1M [NA]
3V3
U1
CN1
2 C6 R7 2 4
22nF 100
1 R6 74LVC1G04SE
75
RCA_SMD

Figure 23. Audio codec Cirrus and connectors

U11
E9
LDO1VDD
D9
AVDD1
B2
SPKVDD1
C2
SPKVDD2
D8
AVDD2
G9
CPVDD
F1
DCVDD
D2
DBVDD
D1
LDO2VDD
R87 D4
3V3 LDO1ENA
10K D5
LDO2ENA
C89 E6
VREFC
1uF
MIC_CLK C6
DMICCLK
G1
SAI2_SCKA BCLK1
E3
SAI2_FSA LRCLK1
E4
SAI2_SDA DACDAT1
F2
SAI2_SDB ADCDAT1
G3
Audio_INT ADCLRCLK1/GPIO1
H2
GPIO3/BCLK2
F4
GPIO4/LRCLK2
H3
GPIO5/DACDAT2
E5
GPIO7/ADCDAT2
G4
GPIO6/ADCLRCLK2
F6
GPIO11/BCLK3
H5
GPIO10/LRCLK3
H4
GPIO8/DACDAT3
F5
GPIO9/ADCDAT3
3 C8
IN1LP
6 Left C107 D7
IN1LN
1uF
4 Right B8
IN2LP/VRXN
2 B9
IN2LN/DMICDAT1
C7
IN1RP
C106 B7
IN1RN
1uF
A8
IN2RP/VRXP
MIC_DATA A9
IN2RN/DMICDAT2
WM8994ECS/R
MIC_VDD
Second Stage
R22
1M
Very close to Output pin 4
3V3
of first stage
U2
C9 R10 2
22nF 100
74LVC1G04SE
3V3
C4 C7
100nF 100nF
D6
AGND
Default I2C Address : 00110100
E7
AGND
E8
AGND
A1
SPKGND1
C1
SPKGND2
H9
CPGND
E2
DGND
F7
HP2GND
F3 R83 0
SDA
H1 R76 0
SCLK
G2 R80 [NA]
CS/ADDR 3V3
A4
CIFMODE
D3
MCLK1
E1
GPIO2/MCLK2
A3
SPKMODE
A5
REFGND
A7
MICBIAS1
B6
MICBIAS2
C9
VMIDC
C105 C88
F9
HPOUT2N
F8 4.7uF 4.7uF
HPOUT2P
G5
HPOUT1FB
G6
HPOUT1R
H6
HPOUT1L
C5
LINEOUT1N
B5
LINEOUT1P
R121 R102
C4
LINEOUT2N
B4 20 20
LINEOUT2P
A6
LINEOUTFB
B1 JP4
SPKOUTLN
A2
SPKOUTLP
C3 JP3
SPKOUTRN
B3
SPKOUTRP
G8
CPCA
H8
CPCB
C87 2.2uF
H7
CPVOUTN
G7 C80 2.2uF
CPVOUTP
C78 2.2uF
TP_PH15
TP3
4
SPDIF_RX0
Title: Audio Codec WOLFSON and connectors
Project: STM32F746G-DISCO
Size: A4
Date: 10/16/2015
AUDIO_SDA
AUDIO_SCL
SAI2_MCLKA
Jack out Green
CN10
2
Right 4
Left 6
3
PJ3028B-3_GR
SPK Left
SPK Right
TP_PH15
Reference: MB1191 Revision: B-04
Sheet: 4 of 13