lm4935rlx National Semiconductor Corporation, lm4935rlx Datasheet - Page 58

• Manufacturer Part Number: lm4935rlx
• Description: Audio Sub-system With Dual-mode Stereo Headphone And Mono High Efficiency Loudspeaker Amplifiers And Multi-purpose Adc
• Manufacturer: National Semiconductor Corporation

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12.0 Status & Control Registers
12.34 SAR CHANNELS 0 & 1 CONFIGURATION REGISTER
This register is used to control channel 0 and 1 of the SAR system. (Note 31)
Note 31: See the section SAR Overview for more details on this register.
Bits
2:0
6:4
3
7
SLOT_0_ENB
SLOT_1_ENB
SLOT_0_FS
SLOT_1_FS
Field
TABLE 33. SAR_SLOT01 (0x1Bh)
Programs the sampling frequency of SAR channel 0:
If set then VSAR 1 is sampled into SAR slot 0 which also activates the
SAR ADC.
Programs the sampling frequency of SAR channel 1:
If set then VSAR 2 is sampled into SAR slot 1 which also activates the
SAR ADC.
(Continued)
SLOT_0_FS
SLOT_1_FS
58
000
001
010
100
101
000
001
010
100
101
011
110
111
011
110
111
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Description
Sample Rate
Sample Rate
13.888 kHz
13.888 kHz
3.472 kHz
0.868 kHz
3.472 kHz
0.868 kHz
(point A)
(point A)
217 Hz
217 Hz
54 Hz
14 Hz
54 Hz
14 Hz
4 Hz
1 Hz
4 Hz
1 Hz
@
@
12.000 MHz
12.000 MHz