TDA7503 查看數據表（PDF） - STMicroelectronics
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TDA7503 Datasheet PDF : 30 Pages
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TDA7503
PIN DESCRIPTION (continued)
N.
Name
Type
Reset
Status
74
VDD4
PWR
–
75
VSS4
GND
–
76
LRCKT
I/O
–
77
SCLKT
I/O
–
78
VDD3
PWR
–
79
VSS3
GND
–
80
SDO0
O
High
81
SDO1
O
High
82
SDO2
O
High
83
SDO3
O
High
84
SDO4
O
High
85
SDI0
86
SDI1
87
SDI2
88
SDI3
I
–
I
–
I
–
I
–
89
SCLKR
I/O
–
90
LRCKR
I/O
–
91
VDD2
PWR
–
92
VSS2
GND
–
93
SS/GPIOS
I/O
I
O/P
Load
Buffer
Function
VDD 3.3V Power Supply.
VSS Power Ground.
100pF
4mA
Audio Serial Port Transmit Left/Right Frame Sync /Frame
Sync. The Left/Right select signal for transmitted serial
audio data. This signal has a frequency equal to the
audio sample rate. This signal is multiplexed with the
SSI's Frame Sync Input.
100pF
4mA
Audio Serial Port Transmit Bit Clock/SSI Serial Bit Clock.
SCLK clocks digital audio data out of pins SDO0, SDO1,
SD02, SD03, and SD04. This pin is multiplexed with the
SSI's serial bit clock.
VDD 3.3V Power Supply.
VSS Power Ground.
100pF 4mA Stereo Digital Audio Data. SDO0 is a stereo digital audio
data output pin channel 0.
100pF 4mA Stereo Digital Audio Data. SDO1 is a stereo digital audio
data output pin channel 1.
100pF 4mA Stereo Digital Audio Data. SDO2 is a stereo digital audio
data output pin channel 2.
100pF 4mA Stereo Digital Audio Data. SDO3 is a stereo digital audio
data output pin channel 3.
100pF
4mA
Stereo Digital Audio Data /Serial Transmit Data. SDO4 is
a stereo digital audio data output pin and is multiplexed
with the SSI's Serial Transmit Data Output channel 4.
4mA Stereo Digital Audio Data. SDI0 is a stereo digital audio
data input pin channel 0.
4mA Stereo Digital Audio Data. SDI1 is a stereo digital audio
data input pin channel 1.
4mA Stereo Digital Audio Data. SDI2 is a stereo digital audio
data input pin channel 2.
100pF
4mA
Stereo Digital Audio Data / Serial Receive Data. SDI3 is a
stereo digital audio data input pin and is multiplexed with
the SSI's Serial Receive Data Input channel 3.
100pF
4mA
Audio Serial Port Receive Bit Clock. SCLK clocks
received digital audio data into pins SDI0, SDI1, SDI2,
and SDI3
100pF
4mA
Audio Serial Port Receive Left/Right Frame Sync. The
Left/Right select signal for received serial audio data.
This signal has a frequency equal to the audio sample
rate.
VDD 3.3V Power.
VSS Power Ground.
200pF
8mA
Microcontroller SPI Slave Select . Slave Select Input for
SPI type serial port. This pin can be used as a GPIO
when the SPI is disabled or in master mode.
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