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TSW-102-07-L-D Datasheet(PDF) 30 Page - Texas Instruments |
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TSW-102-07-L-D Datasheet(HTML) 30 Page - Texas Instruments |
30 / 60 page ![]() www.ti.com 4.12 Output Stage Configuration Tab TLV320AIC3104EVM Software Figure 27. Output Stage Configuration Tab The Output Stage Configuration tab (Figure 27) allows for setting various features of the output drivers. The Configuration control may be set as either Fully-Differential or Pseudo-Differential. This control is used to determine if the output stage is being used to drive a fully differential output load or a output load where one of the outputs if referenced to a common-mode voltage (pseudo-differential). The output Coupling control can be chosen as either Capless or AC-coupled. This setting should correspond to the setting of the hardware switch (SW1) on the TLV320AIC3104EVM. The common mode voltage of the outputs may be set to 1.35 V, 1.5 V, 1.65 V, or 1.8 V using the Common Mode Voltage control. The TLV320AIC3104 offers several options to help reduce the turnon/off pop of the output amplifiers. The Power-On Delay of the output drivers can be set using the corresponding control from 0's up to 4 seconds. Ramp-Up Step Timing can also be adjusted from 0ms to 4ms. The outputs can be set to soft-step their volume changes, using the Output Volume Soft Stepping control, and set to step once per Fs period, once per two Fs periods, or soft-stepping can be disabled altogether. The high power outputs of the TLV320AIC3104 can be configured to go to a weak common-mode voltage when powered down. The source of this weak common-mode voltage can be set on this tab with the Weak Output CM Voltage Source drop-down. Choices for the source are either a resistor divider off the AVDD_DAC supply, or a bandgap reference. See the data sheet for more details on this option. 30 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback |
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