Specifications
Table Of Contents
LBD
RX_EN
C16
9pF
C_0201
R1
0R/NC
R_0402
DGND
A2
MHF
2
1
3
GND
ANT
GND
GPIO_P2.6_PWM
RX_EN
C38
1uF
C_0402
DGND
XTAL_N
ANT2
PCB_ANT
1
IN
DGND
I2C_SDA
C11
1uF
C_0402
DGND
XTAL_N
L9
1.0nH
L_0201
VDD_3V
I2S_PCM_LRCK
C52
4.7pF
C_0201
C3
4.7uF
C_0603
XTAL_P
DGND
C24
0.1uF
C_0402
VDD_3V
GPIO_P2.4
C51
100nF
C_0201
EAR_LP
C45
12pF
C_0402
I2C_SDA
DGND
C55
NC/9pF
C_0201
DGND
I2S_PCM_BCK
P3.2_ADC_IN
SPI_MISO
C42
0.1uF
C_0402
XTAL_P
TP1
3V
TP_1.0MM
DGND
C25
0.5pF
C_0201
DGND
GPIO_P2.7_PWM
SPI_SCK
C56
NC/9pF
C_0201
I2C_SCL
DGND
U7
XTAL16MHZ
XTAL_3.2X2.5MM
1
2
4
3
DGND
C34
4.7pF
C_0201
SPI_MOSI
FLASH_WP
RSTN
TP12 GPIO_P2.4 TP_0.8MM
DGND
C53
0.5pF
C_0201
VDD_3V
A1
MHF
2
1
3
GND
ANT
GND
JTAG_M
CODEC_12M
P0.2_UART_TXD
C13
1uF
C_0402
DGND
C20
0.5pF
C_0201
DGND
I2S_DOUT2
P3.0_ADC_IN
P3.1_ADC_IN
L6
1.6nH
L_0201
C6
0.1uF
C_0402
DGND
L12
0R
L_0201
DGND
P0.3_UART_RXD_Debug
EAR_LN
I2C_SCL
L17
1.0nH
L_0201
C54
0.5pF
C_0201
VDD_3V
L5
1.2nH
L_0201
DGND
SPI_CS
EAR_RP
I2S_PCM_DOUT
C36
NC
C_0201
DGND
DGND
L8
2.2nH
L_0201
I2S_PCM_DOIN
FLASH_PROG
U8
ETK51
MQFN48_0.5_7X7
1
2
3
4
5
6
7
8
9
10
31
27
28
29
14
15
16
17
20
18
11
12
13
38
37
33
36
32
34
26
25
24
23
21
22
48
47
46
45
44
43
42
41
40
39
49
19
30
35
EAR_RN
EAR_RP
EAR_LP
EAR_LN
VDD3V
XTAL_P
XTAL_N
VDD3V
RFN_RX
RFP_RX
P0.0
RSTN
P0.3
P0.2
VDD3V
3V_OUT
5V_IN
P3.2
P0.7
P3.1
RFP_TX
RFN_TX
VDDPA
P1.2
P1.3
P2.6
P2.0
P2.7
P2.4
VDD3V
CDVDD
LBD
P0.4
P0.6
P0.5
VbgDAC
VDD3V
TX_EN
RX_EN
CLK12M
WP
JTAG_M
PROG_M
P1.0
P1.1
GND
P3.0
P0.1
P2.1
VDD_3V
DGND
I2S_DOUT1EAR_RN
C44
12pF
C_0402
C19
0.8pF
C_0201
VDD_IN
ANT1
PCB_ANT
1
IN
I2S_PCM_DOIN
P0.2_UART_TXD
I2S_PCM_DOUT
J1 26pin_Connector
PIN_2X13_1.27MM_SMD
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
2221
23 24
25 26
GPIO_P2.6_PWM
I2S_PCM_BCK
TP6 FLASH_WPTP_0.8MM
GPIO_P2.7_PWM
I2S_PCM_LRCK
GPIO_P2.4
H1
H_2.0mm
P3.0_ADC_IN
I2S_DOUT1
TP5 EAR_RN TP_0.8MM
DGND
P3.1_ADC_IN
I2S_DOUT2
TP4 EAR_RP TP_0.8MM
DGND
P3.2_ADC_IN
CODEC_12M
DGND
TP7 JTAG_M TP_0.8MM
EAR_LN
TP3 EAR_LP TP_0.8MM
I2C_SCL
DGND
EAR_LP
I2C_SDA
SC1
SC_PAD
VDD_IN
EAR_RP
FLASH_PROG
DGND
TP8 RSTN TP_0.8MM
EAR_RN
TP10 GPIO_P2.4 TP_0.8MM
SPI_CS
FLASH_WP
SC2
SC_PAD
SPI_SCK
JTAG_M
SPI_MISO
TP9 LBD TP_0.8MM
RSTN
SPI_MOSI
TP2 EAR_LN TP_0.8MM
LBD
P0.3_UART_RXD_Debug
BOM:
Items
Type
Package
Spec
Quantity
Part ref
Remark
1
C CHIP
0201
0.5pF±0.1pF_25V
4
C20,C25,C53,C54
2
C CHIP
0201
0.8pF±0.1pF_25V
1
C19