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3.2.3.1 Power Up/Down
Software Control and Operation
This menu (shown in Figure 3-4 ) allows users to manually power up or power down each module. Clickthe appropriate checkboxes to power up or power down a specific module. Table 3-1 shows the registermapping for each module setting.
Abbreviations such as DAL/DAR,MXL/MXR, and ADL/ADR stand for corresponding modules that aredescribed 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]
Set-Up Guide24 SBAU127 – July 2007Submit Documentation Feedback