TLC320AD90 Datasheet, PDF (12/51 Pages) Texas Instruments – Stereo Audio Codec

1.5 Terminal Functions (Continued)
TERMINAL
NAME
NO.
I/O DESCRIPTION
PHONE
19
I Telephony subsystem speakerphone input (DLP – down line phone)
REF
33
O Reference voltage
REFM
40
O Differential voltage reference filter
REFOUT
34
O Reference voltage. Provides a 5-mA drive to bias microphones.
REFP
39
O Differential voltage reference filter
RESERVED 41–44
Connect to ground
RESET
15
I Master hardware reset
RFILT_M
36
O Differential anti-aliasing filter for ADC right channel
RFILT_P
35
O Differential anti-aliasing filter for ADC right channel
SDATA_IN
12
O Serial time-division-multiplexed TLC320AD90C output stream
SDATA_OUT
9
I Serial time-division-multiplexed TLC320AD90C input stream
SYNC
14
I 48-kHz fixed sample sync signal
VIDEO_L
22
I
Video audio left channel. VIDEO_L connects to a TV tuner or video camera (typically
an internal connector).
VIDEO_R
23
I
Video audio right channel. VIDEO_R connects to a TV tuner or video camera
(typically an internal connector).
XTL_IN
6
I 24.576-MHz crystal
XTL_OUT
7
O 24.576-MHz crystal
1–6