Texas Instruments AIC111EVM, Руководство пользователя, Страница: 13 / 23

Jumper Options
2-3 Digital Interface
Pin Number Description Signal
J1.39 3.3V_A Analog 3.3 V
J1.40 AGND Analog Ground
The development platform provides a convenient mechanical and electrical
interface between the serial port on the DSK and the EVM.
Refer to Ti literature number SLAU090 for details regarding the development
platform.
Further descriptions regarding the operation of this EVM assumes that the
Development Platform is used. The figure below shows the method necessary
to connect the DSK to the development platform, and the development
platform to the codec.
DSK
AIC111 EVM
Development
Platform
2.2 Jumper Options
There are various jumpers on the board that can be configured in a variety of
ways, depending upon the user’s requirements. Their functions are briefly
presented below:
Jumper Function
W1 Reserved, never install a jumper at this location Never install
W2 Supplies bias voltage for AVIN_P, if required Not installed
W3 Grounds AVIN_M, for single-ended input, if required. Not installed
W4 Reserved, never install a jumper at this location Never install
W5 Completes the connection for the codec’s analog and core digital
supplies.
– remove this jumper and place a current meter between TP1 and TP2 to
check current drawn. Installed
W6 Completes the connection for the codec’s digital I/O supply.
– remove this jumper and place a current meter between TP3 and TP4 to
check current drawn. Installed
W7 Completes the connection for the codec’s digital H-bridge supply
– remove this jumper and place a current meter between TP5 and TP6 to
check current drawn. Installed
W8 When inserted, the device is permanently reset. Not installed
W9 Reserved, never install a jumper at this location Never install
W10 Selects the digital interface Install between
pins 2 and 3
W11 Input for add-on conditioning board Never install
P1.32–P1.34 Connect AGND and DGND together Installed