Texas Instruments DEM-DAI3793A manual Power Up/Down, Hp Com/Mono Hpc

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Software Control and Operation

3.2.3.1Power Up/Down

This menu (shown in Figure 3-4) allows users to manually power up or power down each module. Click the appropriate checkboxes to power up or power down a specific module. Table 3-1shows the register mapping for each module setting.

Abbreviations such as DAL/DAR, MXL/MXR, and ADL/ADR stand for corresponding modules that are described in the block diagram of the PCM3793A (see Figure 3-8).

Figure 3-4. Internal Module Power Up/Down Function Menu Tab

Table 3-1. Register Mapping for Power Up/Down Module

Check Box	Internal Module	Register
Analog Bias	Analog bias	Reg#73 bit7 [PBIS]
Vcom	Analog common voltage	Reg#74 bit0 [PCOM]
HP COM/MONO (HPC)	Headphone common/mono-out buffer	Reg#73 bit4 [PHPC]
Mixer L-ch (XML)	Analog mixer L-ch	Reg#72 bit0 [PMXL]
Mixer R-ch (XMR)	Analog mixer R-ch	Reg#72 bit1 [PMXR]
HP/Line out L-ch (HPL)	Headphone / Line out amp L-ch	Reg#73 bit2 [PHPL]
HP/Line out R-ch (HPR)	Headphone / Line out amp R-ch	Reg#73 bit3 [PHPR]
DAC L-ch (DAL)	DAC and interpolation filter L-ch	Reg#73 bit5 [PDAL]
DAC R-ch (DAR)	DAC and interpolation filter R-ch	Reg#73 bit6 [PDAR]
Speaker out L-ch (SPL)	Speaker amp L-ch	Reg#73 bit0 [PSPL]
Speaker out R-ch (SPR)	Speaker amp R-ch	Reg#73 bit1 [PSPR]
ADC L-ch (ADL)	ADC and decimation filter L-ch	Reg#82 bit0 [PADL]
ADC R-ch (ADR)	ADC and decimation filter R-ch	Reg#82 bit1 [PADR]
Gain AMP L-ch (PG1, PG5)	Gain amp L-ch (PG1 and PG5)	Reg#82 bit4 [PAIL]
Gain AMP R-ch (PG2, PG6)	Gain amp R-ch (PG2 and PG6)	Reg#82 bit5 [PAIR]
Diff amp (D2S)	D2S for AIN1	Reg#82 bit3 [PADS]
Mic Bias (MCB)	Mic bias amp	Reg#82 bit2 [PMCB]

24	Set-Up Guide	SBAU127 –July 2007
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