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8
APPLICATION CIRCUIT
VCC
1 uF
0.1uF
Power
1 uF
0.1uF
SWD
Interface
VCC
10K
Reset
Circuit
10uF/10V
20p
4~24.576
MHz
crystal
20p
20p
Crystal
20p
32.768 kHz
crystal
Voltage
Measurement
SAR ADC
PWM
LDO
1uF
Sep 9, 2019
ISD94100 Series Technical Reference Manual
USB_VBUS
AV
DD
USB_D-
USB_D+
AV
SS
SPI_SS
V
DD
SPI_CLK
SPI_MISO
SPI_MOSI
V
SS
V
DD
ICE_CLK
I2C_SCL
ICE_DAT
I2C_SDA
V
SS
nRESET
I94100
I2S_LRCK
Series
I2S_BCLK
I2S_DI
I2S_DO
I2S_MCLK
XT1_IN
XT1_OUT
X32_IN
DMIC_CLK0
DMIC_DAT0
DMIC_CLK1
DMIC_DAT1
X32_OUT
EADC0_CH[12:0]
DPWM_LP
DPWM_LN
DPWM_RP
PWM0_CH[5:0]
DPWM_RN
LDO_CAP
DPWM_SP
DPWM_SN
Page 923 of 928
CS
CLK
MISO
MOSI
VCC
4.7K
4.7K
CLK
DIO
PC COM Port
RS 232 Transceiver
RXD
ROUT
RIN
TXD
TIN
TOUT
Audio Codec
FS
BCLK
DO
DI
MCLKI
VCC
L/R
L/R
VCC
L/R
L/R
Audio Power Stage
LP
LN
RP
RN
Audio Power Stage
IP
IN
USB Slot
SPI Device
2
I
C Device
UART
2
I
S Device
Digital
Microphone
Audio
Amplifier
Rev1.09
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