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Page 45
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8725C
ZoomingADC for sensing data acquisition
Revision 1.01
January 2011
Semtech
Table 32.
RegACCfg2[0x54]
Bit
Name
Mode
Reset
Description
7:6
SetFs
rw
00
ADC Sampling Frequency selection
5:4
Pga2Gain
rw
00
PGA2 gain selection
3:0
Pga2Offset
rw
0000
PGA2 offset selection
Table 33.
RegACCfg3[0x55]
Bit
Name
Mode
Reset
Description
7
Pga1Gain
rw
0
PGA1 gain selection
6:0
Pga3Gain
rw
0001100
PGA3 gain selection
Table 34.
RegACCfg4[0x56]
Bit
Name
Mode
Reset
Description
7
-
rw
0
Reserved
6:0
Pga3Offset
rw
0000000
PGA3 offset selection
Table 35.
RegACCfg5[0x57]
Bit
Name
Mode
Reset
Description
7
Busy
r
0
ADC activity flag
6
Def
rw
0
Selects ADC and PGA default configuration, starts an ADC conversion
5:1
Amux
rw
00000
Input channel configuration selector
0Vmux
rw
0
Reference channel selector
0 : VBATT
1 : VREF
Not
Recommended
for
New
Designs