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TSM-110-01-L-DV-P Datasheet(PDF) 34 Page - Texas Instruments

No. de Pieza. TSM-110-01-L-DV-P
Descripción  TLV320AIC3104EVM and TLV320AIC3104EVM-PDK
Descarga  60 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TSM-110-01-L-DV-P Datasheet(HTML) 34 Page - Texas Instruments

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4.14 High-Power Outputs Tab
TLV320AIC3104EVM Software
Figure 29. High-Power Outputs Tab
This tab contains four horizontal groupings of controls, one for each of the high power outputs. Each
output has a mixer to mix the LINE2L, LINE2R, PGA_L, PGA_R, DAC_L and DAC_R signals, assuming
that the DACs are not routed directly to the high power outputs (see Section 4.13).
At the left of each output strip is a Powered Up button that controls whether the corresponding output is
powered up or not. The When powered down button allows the outputs to be tri-stated or driven weakly
to a the output common mode voltage.
The HPxCOM outputs (HPLCOM and HPRCOM) can be used as independent output channels or can be
used as complementary signals to the HPLOUT and HPROUT outputs. In these complementary
configurations, the HPxCOM outputs can be selected as Differential of HPxOUT signals to the
corresponding outputs or may be set to be a common mode voltage (Constant VCM Out. When used in
these configurations, the Powered Up button for the HPxCOM output is disabled, as the power mode for
that output will track the power status of the HPL or HPR output that the COM output is tracking.
The HPRCOM Config selector allows a couple additional options compared to the HPLCOM Config
selector. Differential of HPLCOM allows the HPRCOM to be the complementary signal of HPLCOM for
driving a differential load between the HPxCOM outputs. The selector also allows Ext.
Feedback/HPLCOM constant VCM as an option. This option is used when the high power outputs are
configured for Capless output drive, where HPLCOM is configured as Constant VCM Out. The feedback
option provides feedback to the output and lowers the output impedance of HPLCOM.
At the right side of the output strip is a master volume knob for that output, which allows the output
amplifier gain to be muted or set from 0 to 9 dB in 1-dB steps.
TLV320AIC3104EVM and TLV320AIC3104EVM-PDK
34
SLAU218 – August 2007
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