CS4349 Datasheet, PDF (7/40 Pages) Cirrus Logic – 192 kHz DAC w/ Volume Control and 1 Vrms @ 3.3 V

CS4349
Control Port Definitions
AD1/CDOUT 1 Address Bit 1 / Serial Control Data Out (I/O) - Chip address bit 1 in I²C Mode or data output in SPI Mode
AD0/CS
2 Address Bit 0 / Chip Select (Input) - Chip address bit 0 in I²C Mode or Chip Select in SPI Mode
SDA/CDIN
3 Serial Control Data In (I/O) - Input/Output for I²C data. Input for SPI data
SCL/CCLK
4 Serial Control Port Clock (Input) - Serial clock for the control port interface
TSTO
8 Test Output (Output) - This pin needs to be floating and not connected to any trace or plane.
Stand-Alone Definitions
DIF0
DIF1
DIF2
3
4
1
Digital Interface Format (Input) - Defines the required relationship between the Left Right Clock, Serial
Clock, and Serial Audio Data
DEM
2
De-emphasis (Input) - Selects the standard 15 μs/50 μs digital de-emphasis filter response for
44.1 kHz sample rates
POPGUARD
8 ^{Popguard Disable (Input/Output) - At RST this pin is an input to disable PopGuard when pulled high;}
Otherwise leave floating. After RST is released this pin becomes TSTO.
DS782F1
7