德州仪器（TI）PCM1800E 
封装·引脚：SSOP (DB) | 24
(NRND) 具有单端输入的 95dB SNR 立体声 ADC
DEM-PCM1800 BASIC CONNECTIONS
AND OPERATION
• Power supply can be provided at +VCC, GND connector
CN1.
• Audio analog inputs are VINL, VINR connector CN2.
• Digital ground return to digital interface source should be
connected at GND, connector CN3.
• System clock (either of 256fS
or 384fS
or 512fS
) should be
provided at SCLK, connector CN3.
• Operation Mode (master mode or slave mode) and selection of system clock can be controlled by switch MODE
0, MODE 1.
• The high pass filter function can be controlled by the
switch bypass.
• Audio data format can be controlled by switch FMT0,
FMT1.
• To enable the reset function push RESET (switch SW2).
Master Mode Operation
• LRCK, BCK, DATA, are outputs for PCM Audio data.
• LRCK, BCK, DATA, outputs are located at connector
CN3.
Slave Mode Operation
• LRCK, BCK, DATA, are inputs for PCM Audio data.
Synchronized timing between LRCK (fS
) and system
clock (256fS
, 384fS
, 512fS
) is required.
• LRCK, BCK, DATA, inputs are located at connector CN3
and are selected by setting FSYNC = H connecting JP2.