Datasheet

86
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Table 15-1. Dac SPI Interface Timings
15.1.5 DAC Register Tables
Table 15-2. DAC Register Address
15.1.6 DAC Gain
The DAC implements severals gain control: line-in (Table 15-3.), master playback (), line-out
(Table 15-6.).
Timing parameter Description Min Max
Tc AUDCCLK min period 150 ns -
Twl AUDCCLK min pulse width low 50 ns -
Twh AUDCCLK min pulse width high 50 ns -
Tssen Setup time AUDCCS falling to AUDCCLK rising 50 ns -
Thsen Hold time AUDCCLK falling to AUDCCS rising 50 ns -
Tssdi Setup time AUDCDIN valid to AUDCCLK falling 20 ns -
Thsdi Hold time AUDCCLK falling to AUDCDIN not valid 20 ns -
Tdsdo Delay time AUDCCLK rising to AUDCDOUT valid - 20 ns
Thsdo Hold time AUDCCLK rising to AUDCDOUT not valid 0 ns -
Address Register Name Access Reset state
00h DAC_CTRL Dac Control Read/Write 00h
01h DAC_LLIG Dac Left Line in Gain Read/Write 05h
02h DAC_RLIG Dac Right Line in Gain Read/Write 05h
03h DAC_LPMG Dac Left Master Playback Gain Read/Write 08h
04h DAC_RPMG Dac Right Master Playback Gain Read/Write 08h
05h DAC_LLOG Dac Left Line Out Gain Read/Write 00h
06h DAC_RLOG Dac Right Line Out Gain Read/Write 00h
07h DAC_OLC Dac Output Level Control Read/Write 22h
08h DAC_MC Dac Mixer Control Read/Write 09h
09h DAC_CSFC
Dac Clock and Sampling Frequency
Control
Read/Write 00h
0Ah DAC_MISC Dac Miscellaneous Read/Write 00h
0Ch DAC_PRECH Dac Precharge Control Read/Write 00h
0Dh DAC_AUXG Dac Auxilary input gain Control Read/Write 05h
10h DAC_RST Dac Reset Read/Write 00h
11h PA_CRTL Power Amplifier Control Read/Write 00h