AD4134 datasheet(83/92 Pages) AD

83 / 92 page

Data Sheet

AD4134

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Rev. 0 | 83 of 92

Table 64. Bit Descriptions for ODR_VAL_FLT_MID1

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

ODR_VAL_FLT[23:16]

Fractional Portion of Decimation Rate. Decimation rate is the ratio of 24 MHz to ODR. In

master mode, the user can program this register to set the ODR output frequency.

0xCE

R/W

Address: 0x1C, Reset: 0x2B, Name: ODR_VAL_FLT_MSB

Table 65. Bit Descriptions for ODR_VAL_FLT_MSB

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

ODR_VAL_FLT[31:24]

Fractional Portion of Decimation Rate. Decimation rate is the ratio of 24 MHz to ODR. In

master mode, the user can program this register to set the ODR output frequency.

0x2B

R/W

Address: 0x1D, Reset: 0x00, Name: CHANNEL_ODR_SELECT

Table 66. Bit Descriptions for CHANNEL_ODR_SELECT

Bits

Bit Name

Settings

Description

Reset

Access

[7:6]

ODR_RATE_SEL_CH3

Select Output Data Rate to ODR Frequency Ratio for Channel 3.

0x0

R/W

0 Output data rate = ODR.

1 Output data rate = ODR/2.

10 Output data rate = ODR/4.

11 Output data rate = ODR/8.

[5:4]

ODR_RATE_SEL_CH2

Select Output Data Rate to ODR Frequency Ratio for Channel 2.

0x0

R/W

0 Output data rate = ODR.

1 Output data rate = ODR/2.

10 Output data rate = ODR/4.

11 Output data rate = ODR/8.

[3:2]

ODR_RATE_SEL_CH1

Select Output Data Rate to ODR Frequency Ratio for Channel 1.

0x0

R/W

0 Output data rate = ODR.

1 Output data rate = ODR/2.

10 Output data rate = ODR/4.

11 Output data rate = ODR/8.

[1:0]

ODR_RATE_SEL_CH0

Select Output Data Rate to ODR Frequency Ratio for Channel 0.

0x0

R/W

0 Output data rate = ODR.

1 Output data rate = ODR/2.

10 Output data rate = ODR/4.

11 Output data rate = ODR/8.

Address: 0x1E, Reset: 0x00, Name: CHAN_DIG_FILTER_SEL

Table 67. Bit Descriptions for CHAN_DIG_FILTER_SEL

Bits

Bit Name

Settings

Description

Reset

Access

[7:6]

DIGFILTER_SEL_CH3

Channel 3 Digital Filter Type Selection.

0x0

R/W

0 Wideband filter.

01 Sinc6 filter.

10 Sinc3 filter.

11 Sinc3 filter with simultaneous 50 Hz and 60 Hz rejection.

[5:4]

DIGFILTER_SEL_CH2

Channel 2 Digital Filter Type Selection.

0x0

R/W

0 Wideband filter.

01 Sinc6 filter.

10 Sinc3 filter.

11 Sinc3 filter with simultaneous 50 Hz and 60 Hz rejection.

[3:2]

DIGFILTER_SEL_CH1

Channel 1 Digital Filter Type Selection.

0x0

R/W

0 Wideband filter.

01 Sinc6 filter.

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