Hda Audio Interface - DIGITAL-LOGIC SmartCore Express SMA200 Technical User's Manual

DIGITAL-LOGIC AG
5.4.8.

HDA Audio Interface

Signal BUS
HDA_DOCKEN# CMOS
HAD_RST# CMOS
HAD_SYNC CMOS
HAD_BITCLK CMOS
HAD_SDATAin [1..0]
CMOS
HAD_SDATAout CMOS
HAD_DOCKRST# CMOS
If the signals are not used:
Remarks:
The 33 Ohm series termination should be placed directly next to the codecs.
Supported Codecs:
EMV/EMI filters:
Are not needed.
Type Description
3.3V HAD dock enable.
Out This signal controls the
external HD audio
docking isolation logic.
When de-asserted, the
switch is in isolate
mode.
3.3V Reset signals for the
Out external codecs.
3.3V Sample rate at 48kHz to
Out the codecs.
3.3V 24MHz signal for the
Out external codec.
3.3V Data input from the
In external codecs.
3.3V Data output from the
Out ext. PC.
3.3V Reset signal for the
codecs.
On Module Ext. Ter-
Termination mination
Needed
-
Series 33
Series 33
Series 33
- Series
33 Ohm
Series 33
-
32
SMA200 Manual V1.0
Max.
Length Ohm
in mm
- 200 55
- 200 55
200 55
200 55
200 55
- 200 55
Matched
Length
in mm
-
-
-
-
-
-