Texas Instruments TLV320AIC3109EVM-K, Руководство пользователя

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+5-V Analog
Supply
+1.8-V Digital
Supply
+3.3-V Digital
Supply
Analog
Ground
Digital
Ground
J3
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EVM Description and Basics
11 SLAU738 – September 2017
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Copyright © 2017, Texas Instruments Incorporated
TLV320AIC3109EVM-K
2.4.1 Stand-Alone Operation
When used as a stand-alone EVM, power is applied to J3 directly, making sure to reference the supplies
to the appropriate grounds on that connector. The diagram for the power supplies required for stand-alone
operation mode are shown in
Figure 6 .
CAUTION
Verify that all power supplies are within the safe operating limits shown in
TLV320AIC3109-Q1 Automotive, Low-Power, 96-kHz, Mono Audio Codec
before applying power to the EVM.
J3 provides connection to the common power bus for the TLV320AIC3109EVM. Power is supplied on the
pins listed in
Table 9 .
Figure 6. Power Supplies for Stand-Alone Operation
2.4.2 USB-MODEVM Operation
The USB-MODEVM Interface board can be powered from several different sources:
• USB
• 6-Vdc to 10-Vdc AC/DC external wall supply (not included)
• Lab power supply
When powered from the USB connection, JMP6 should have a shunt from pins 1–2 (this is the default
factory configuration). When powered from 6-V to 10-Vdc, either through the J8 terminal block or J9 barrel
jack, JMP6 should have a shunt installed on pins 2–3. If power is applied in any of these ways, onboard
regulators generate the required supply voltages and no further power supplies are necessary.
If laboratory supplies are used to provide the individual voltages required by the USB-MODEVM Interface,
JMP6 should have no shunt installed. Voltages are then applied to J2 (+5 VA), J3 (+5 VD), J4 (+1.8 VD),
and J5 (+3.3 VD). The +1.8 VD and +3.3 VD can also be generated on the board by the onboard
regulators from the +5 VD supply; to enable this configuration, the switches on SW1 need to be set to
enable the regulators by placing them in the ON position (lower position, looking at the board with text
reading right-side up). If +1.8 VD and +3.3 VD are supplied externally, disable the onboard regulators by
placing SW1 switches in the OFF position.
Each power supply voltage has an LED (D1–D7) that lights when the power supplies are active.