cs4227 Cirrus Logic, Inc., cs4227 Datasheet - Page 32

• Manufacturer Part Number: cs4227
• Description: Six Channel, 20-bit Codec
• Manufacturer: Cirrus Logic, Inc.

Clock and Crystal Pins
XTI, XTO - Crystal connections
CLKOUT - Master Clock Output
Miscellaneous Pins
PDN - Powerdown Pin
NC - No Connect
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Input and output connections for the crystal which may be used to operate the CS4227. Alternatively, a
clock may be input into XTI.
CLKOUT allows external circuits to be synchronized to the CS4227. Alternate output frequencies are
selectable by the control port.
When low, the CS4227 enters a low power mode and all internal states are reset, including the control
port. When high, the control port becomes operational and the RS bit must be cleared before normal
operation will occur.
CS4227
DS281PP2