Cirrus Logic CS4382A - Manual (Page 7)

DS618F2 7
CS4382A
AOUTA1 +,-
AOUTB1 +,-
AOUTA2 +,-
AOUTB2 +,-
AOUTA3 +,-
AOUTB3 +,-
AOUTA4 +,-
AOUTB4 +,- 39, 40
38, 37
35, 36
34, 33
29, 30
28, 27
25, 26
24, 23
Differential Analog Output (Output) - The full-scale differential analog output level is specified in the
Analog Characteristics specification table.
VA 32 Analog Power (Input) - Positive power supply for the analog section.
VLS 43
Serial Audio Interface Power (Input) - Determines the required signal level for the serial audio inter-
face. Refer to the Recommended Operating Conditions for appropriate voltages.
TST
10
12
Test - These pins need to be tied to analog ground.
Software Mode Definitions
SCL/CCLK 15
Serial Control Port Clock (Input) - Serial clock for the serial Control Port. Requires an external pull-up
resistor to the logic interface voltage in I²C
®
Mode as shown in the Typical Connection Diagram.
SDA/CDIN 16
Serial Control Data (Input/Output) - SDA is a data I/O line in I²C Mode and requires an external pull-up
resistor to the logic interface voltage, as shown in the Typical Connection Diagram. CDIN is the input
data line for the Control Port interface in SPI ™ Mode.
AD0/CS 17
Address Bit 0 (I²C) / Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C Mode;
CS is the chip select signal for SPI format.
Stand-Alone Definitions
M0
M1
M2
M3 17
16
15
42
Mode Selection (Input) - Determines the operational mode of the device.
DSD Definitions
DSD_SCLK 42 DSD Serial Clock (Input) - Serial clock for the Direct Stream Digital audio interface.
DSD_EN 7 DSD-Enable (Input) - When held at logic ‘1’ the device will enter DSD Mode (Stand-Alone mode only).
DSDA1
DSDB1
DSDA2
DSDB2
DSDA3
DSDB3
DSDA4
DSDB4 3
2
1
48
47
46
45
44
Direct Stream Digital Input (Input) - Input for Direct Stream Digital serial audio data.
Pin Name # Pin Description