1.5
Terminal Functions (continued)
TERMINAL
NO.
I/O
RHD
21
20
13
22
23
I
I
I
I
O
Control-port serial-data clock. For SPI and 2-wire control modes this is the serial-clock input.
See Section 3.1 for details.
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.
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.
Crystal or external-clock input. Used for derivation of all internal clocks on the AIC23B.
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.
DESCRIPTION
NAME
SCLK
SDIN
VMID
XTI/MCLK
XTO
GQE/
ZQE
15
14
6
16
18
PW
24
23
16
25
26
1−6
TI [ TEXAS INSTRUMENTS ]
