CS4353_09 Datasheet, PDF (5/26 Pages) Cirrus Logic – 3.3 V Stereo Audio DAC with 2 VRMS Line Output

CS4353
VA
VBIAS
RESET
1_2VRMS
DEM
I²S/LJ
LRCK
SDIN
Thermal Pad
17 Low Voltage Analog Power (Input) - Positive power supply for the analog section.
18 Positive Voltage Reference (Output) - Positive reference voltage for the internal DAC.
Reset (Input) - Optional connection for an external reset control. The device enters a powered-down
19 ^{state when this pin is set low (GND) OR when the VCP supply falls below the Voff threshold (see See}
“Internal Power-on Reset Threshold Voltages” on page 10.). This pin should be set high (VL) during nor-
mal operation.
20
1 or 2 V_RMS Select (Input) - Selects the analog output full-scale voltage. Setting this pin low (GND)
selects 1 V_RMS, while setting it high (VL) selects 2 V_RMS.
21
De-emphasis (Input) - Selects the standard 50 μs/15 μs digital de-emphasis filter response for 44.1 kHz
sample rates when enabled.
22
Digital Interface Format (Input) - Selects the serial audio interface format. Setting this pin low (GND)
selects I²S, while setting it high (VL) selects Left-Justified.
23
Left / Right Clock (Input) - Determines which channel, Left or Right, is currently active on the serial
audio data line.
24 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
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Thermal Relief Pad - This pad may be soldered to the board, however it MUST be electrically isolated
from all board connections.
DS803F1
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