Datasheet

PCM3070
SLAS724 – FEBRUARY 2011 www.ti.com
Table 1. Terminal Functions
TERMINAL NAME TYPE DESCRIPTION
1 MCLK I Master Clock Input
2 BCLK IO Audio serial data bus (primary) bit clock
3 WCLK IO Audio serial data bus (primary) word clock
4 DIN I Primary function
Audio serial data bus data input
MFP1 Secondary function
Audio serial data bus (secondary) bit clock input
Audio serial data bus (secondary) word clock input
Clock Input
General Purpose Input
5 DOUT O Primary
Audio serial data bus data output
MFP2 Secondary
General Purpose Output
Clock Output
INT1 Output
INT2 Output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output
6 IOVDD Power I/O voltage supply 1.1V – 3.6V
7 IOVSS Ground I/O ground supply
8 SCLK I Primary (SPI_Select = 1)
SPI serial clock
MFP3 Secondary: (SPI_Select = 0)
Audio serial data bus (secondary) bit clock input
Audio serial data bus (secondary) DAC/common word clock input
Audio serial data bus (secondary) ADC word clock input
Audio serial data bus (secondary) data input
General Purpose Input
9 SCL/ I I
2
C interface serial clock (SPI_Select = 0)
SSZ SPI interface mode chip-select signal (SPI_Select = 1)
10 SDA/ MOSI I I
2
C interface mode serial data input (SPI_Select = 0)
SPI interface mode serial data input (SPI_Select = 1)
11 MISO O Primary (SPI_Select = 1)
Serial data output
MFP4 Secondary (SPI_Select = 0)
General purpose output
CLKOUT output
INT1 output
INT2 output
Audio serial data bus (primary) ADC word clock output
Audio serial data bus (secondary) data output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output
12 SPI_ SELECT I Control mode select pin ( 1 = SPI, 0 = I
2
C )
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