Datasheet

Table Of Contents
1−6
1.5 Terminal Functions (continued)
TERMINAL
NO.
I/O
DESCRIPTION
NAME
GQE/
ZQE
PW RHD
I/O
DESCRIPTION
SCLK 15 24 21 I Control-port serial-data clock. For SPI and 2-wire control modes this is the serial-clock input.
See Section 3.1 for details.
SDIN 14 23 20 I Control-port serial-data input. For SPI and 2-wire control modes this is the serial-data input and
also is used to select the control protocol after reset. See Section 3.1 for details.
VMID 6 16 13 I Midrail voltage decoupling input. 10-µF and 0.1-µF capacitors should be connected in parallel to
this terminal for noise filtering. Voltage level is 1/2 AVDD nominal.
XTI/MCLK 16 25 22 I Crystal or external-clock input. Used for derivation of all internal clocks on the AIC23B.
XTO 18
26 23 O Crystal output. Connect to external crystal for applications where the AIC23B is the audio timing
master. Not used in applications where external clock source is used.