CS4328 Datasheet, PDF (18/31 Pages) Cirrus Logic – 18-Bit, Stereo D/A Converter for Digital Audio

CS4328
Digital Outputs
XTO - Crystal Oscillator Output, PIN 15.
When a crystal oscillator is used, it is tied between this pin and XTI. When an external clock is
input, this pin should be left floating.
ACKO - Analog Clock Output, PIN 22.
This output is 128× the input word rate (LRCK frequency). Normally connected to the Analog
Clock Input pin, ACKI.
CALO - Calibration Output, PIN 21.
Used during offset calibration. Must be connected to the Calibration Input pin, CALI.
CMPO - Comparator Output, PIN 6.
Used during offset calibration. Must be connected to the Comparator Input pin, CMPI.
Miscellaneous
NC - No Connection, PINS 7, 23.
These two pins are bonded out to test outputs. They must not be connected to any external
component or any length of PC trace.
TST -Test Input, PIN 10.
Allows access to the CS4328 test modes, which are reserved for factory use. Must be tied to
DGND.
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DS62F3