ADPD103BCPZ datasheet(51/53 Pages) AD

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ADPD103

Data Sheet

Rev. B | Page 50 of 52

ADC REGISTERS

Table 25. ADC Registers

Address

Data

Bits

Default Access Name

Description

0x12

[15:0]

0x0028

R/W

FSAMPLE

Sampling frequency: fSAMPLE = 32 kHz/(Register 0x12, Bits[15:0] × 4).

For example, 100 Hz = 0x0050; 200 Hz = 0x0028.

0x15

[15:11]

0x0

R/W

Reserved

Write 0x0.

[10:8]

0x6

R/W

SLOTB_NUM_AVG

Sample sum/average for Time Slot B. Specifies the averaging factor, NB,

which is the number of consecutive samples that is summed and averaged

after theADC. Register 0x70 to Register 0x7F hold the data sum. Register 0x64

to Register 0x6B and the data buffer in Register 0x60 hold the data average,

which can be used to increase SNR without clipping, in 16-bit registers.

The data rate is decimated by the value of the SLOTB_NUMB_AVG bits.

0: 1.

1: 2.

2: 4.

3: 8.

4: 16.

5: 32.

6: 64.

7: 128.

0x0

R/W

Reserved

Write 0x0.

[6:4]

0x0

R/W

SLOTA_NUM_AVG

Sample sum/average for Time Slot A. NA: same as Bits[10:8] but for

Time Slot A. See description in Register 0x15, Bits[10:8].

[3:0]

0x0

R/W

Reserved

Write 0x0.

0x18

[15:0]

0x2000

R/W

SLOTA_CH1_OFFSET

Time Slot A Channel 1 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x19

[15:0]

0x2000

R/W

SLOTA_CH2_OFFSET

Time Slot A Channel 2 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x1A

[15:0]

0x2000

R/W

SLOTA_CH3_OFFSET

Time Slot A Channel 3 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x1B

[15:0]

0x2000

R/W

SLOTA_CH4_OFFSET

Time Slot A Channel 4 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x1E

[15:0]

0x2000

R/W

SLOTB_CH1_OFFSET Time Slot B Channel 1 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x1F

[15:0]

0x2000

R/W

SLOTB_CH2_OFFSET Time Slot B Channel 2 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x20

[15:0]

0x2000

R/W

SLOTB_CH3_OFFSET Time Slot B Channel 3 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

0x21

[15:0]

0x2000

R/W

SLOTB_CH4_OFFSET Time Slot B Channel 4 ADC offset. The value to subtract from the raw ADC

value. A value of 0x2000 is typical.

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