參數(shù)資料
型號: WLA49VVA
廠商: National Semiconductor Corporation
元件分類: ADC
英文描述: Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
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12.0 Status & Control Registers (Continued)
12.34 SAR CHANNELS0&1 CONFIGURATION REGISTER
This register is used to control channel 0 and 1 of the SAR system. (Note 31)
TABLE 33. SAR_SLOT01 (0x1Bh)
Bits
Field
Description
2:0
SLOT_0_FS
Programs the sampling frequency of SAR channel 0:
SLOT_0_FS
Sample Rate @ 12.000 MHz
(point A)
000
2
13.888 kHz
001
2
3.472 kHz
010
2
0.868 kHz
011
2
217 Hz
100
2
54 Hz
101
2
14 Hz
110
2
4Hz
111
2
1Hz
3
SLOT_0_ENB
If set then VSAR 1 is sampled into SAR slot 0 which also activates the
SAR ADC.
6:4
SLOT_1_FS
Programs the sampling frequency of SAR channel 1:
SLOT_1_FS
Sample Rate @ 12.000 MHz
(point A)
000
2
13.888 kHz
001
2
3.472 kHz
010
2
0.868 kHz
011
2
217 Hz
100
2
54 Hz
101
2
14 Hz
110
2
4Hz
111
2
1Hz
7
SLOT_1_ENB
If set then VSAR 2 is sampled into SAR slot 1 which also activates the
SAR ADC.
Note 31: See the section SAR Overview for more details on this register.
LM4935
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