3.5.2 Spdif Coax; 3.5.3 Ap Psia Interface; J140 Pin Numbers; Ap Psia Default Setting - Texas Instruments TAS3108EVM2 User Manual

Connectors on the Input-USB board

3.5.2 SPDIF Coax

The SPDIF input for coax is shown in
PIN NO. NET-NAME AT
SCHEMATICS
1 GND
2 IN1
3 IN1
4 IN1

3.5.3 AP PSIA Interface

The input-USB board provides the ability to input I2S directly into the PurePath EVM. I2S source could be,
for example, an Audio Precision with a Programmable Serial Interface Adaptor (PSIA).
Default jumper settings are shown in
routed to Data1, analog channels 3 and 4 to Data2, etc., when analog inputs are selected. When digital
input is selected, either coax or TosLink channel A+B is copied into all data outputs.
When using the input-USB board with an external I2S source connection, the jumper settings in
should be used. Placing the jumper as shown copies I2S data into all data outputs.
22 System Interfaces
Figure 3-2.
1
PCB Connector (Top View)
Figure 3-2. J140 Pin Numbers
Table 3-6. J140 Pin Description
Ground
Coax SPDIF input
Coax SPDIF input
Coax SPDIF input
Figure 3-3. In this setting, data out is: analog channels 1 and 2
Figure 3-3. AP PSIA Default Setting
2
3
4
DESCRIPTION
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006
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Figure 3-4