Quectel EG9 Series, Reference Design

Page: 10 / 15

CHECKED BY
Felix YIN
DRAWN BY
Quectel Wireless Solutions
EG9x
A
TITLE PROJECT
OF
A
6
5
4
3 2
1
SHEET
A
B
C
D
1 2 3 4 5 6
D
C
B
SIZE
VER
10 5 DATE 2018-02-09
A2
Reference Design
Winter CHEN
Notes:
3. EG9x module will automatically initialize the codec via I2C interface after it is turned on successfully, so all power supplies for the codec need to be powered on before that.
Audio Codec Design (ALC5616)
1. ALC5616 power-on sequence: DBVDD/I2C pull-up power/AVDD/DACREF/CPVDD -> MICVDD -> software initialization.
2. ALC5616 power-off sequence: close codec function by software -> MICVDD -> DBVDD/I2C pull-up power/AVDD/DACREF/CPVDD.
2 IN1P/DMC_DAT
3 IN2P
4 IN2N/JD2
5
DACREF
6
AVDD
7
AG
ND
10
LOUTR/N
11
CPN2
12
CPP2
13
CPN1
14
CPP1
15
CPVDD
16
CPVPP
18
CPVREF
19
CPVEE
20
HPO_L
21 ADCDAT1
22 DACDAT1
23 LRCK1
26
SCL
27
SDA
28 GPIO1/IRQ1
29
DBVDD
30
DCVDD
31
M
ICVDD
32 MICBIAS1
8
VREF2
24 BCLK1
1 JD1
9
LOUTL/P
17
HPO_R
25 MCLK
33
DG
ND
U0501
ALC5616
C0505
4.7uF
C0504
4.7uF
C0503
100nF
R0501
0R
C0501
4.7uF
C0502
100nF
C
0509
2.2uF
C
0510
100nF
C0506
4.7uF
C0507
100nF
C
0508
2.2uF
C0515 2.2uF
C0516 2.2uF
C0511 4.7uF
R0503
0R
R0508
NM_10K
R0510
4.7K
R0509
4.7K
C0523 4.7uF
C0521 2.2uF
C0522 2.2uF
R0504 0R
R0505
0R
R0506
0R
R0507
0R
C0512
NM
C0513
NM
C0514
NM
C0524
2.2uF
C0525 2.2uF
R0516
1K
R0514
1.5K
R0513
1K
R0515
1.5K
C0526
10uF
R0502
0R
C0517 1uF
C0518 1uF
C0519 1uF
C0520 1uF
R0511
0R
R0512
0R
R0522
0R
R0523
0R
C0549
NM_33pF
C0548
NM_33pF
R0524
0R
R0525
0R
VD
D
_3.3V
VDD_1
V
8
VDD_3.3V
[1,6] I2C_SDA
[1,6]
I2C_SCL
VDD_1
V
8
VDD_1V8
[1,6] PCM_OUT
[1,6] PCM_IN
[1,6] PCM_CLK
[1,6] PCM_SYNC
[5] MIC+
[5] MIC-
[6,7] SPK_P
[6,7] SPK_N
MICBIAS
[6,7] MIC_P
[6,7] MIC_N
MICBIAS
[5] MIC+
[5] MIC-
VDD_1V8
[6,7] SPK_R
[6,7]
SPK_L