AS7058 datasheet(46/199 Pages) AMSOSRAM

tên linh kiện	AS7058

Giải thích chi tiết về linh kiện	IC for PPG, ECG and body impedance measurement

PDF	199 Pages

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nhà sản xuất	AMSOSRAM [ams-OSRAM AG]

Trang chủ	https://ams-osram.com/

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46 / 199 page

AS7058

Functional description

Datasheet • PUBLIC • Document Feedback

DS001077 • v2-00 • 2025-Sep-24

46 / 199

Table 10: ECG sample frequencies with CGU register settings

Sample frequency (Hz)

ECG1_FREQDIV[7:0]

ECG2_FREQDIV[7:0]

400

‘d’79

‘d’0

500

‘d’63

‘d’0

1000

‘d’31

‘d’0

2000

‘d’15

‘d’0

4000

‘d’7

‘d’0

In addition to the correct clock configuration Sequencer 1 and Sequencer 2 do have dedicated

registers for the SINC down-sampler filters to be configured. Different measurements assigned

to the subsamples might require different filter configuration. Another important parameter

which can be configured individually is the gain of the modulator preamplifier which can be

either 1 or 2 and be configured with register SUBx_IMUX_GAIN. Since modulator 3 which is

assigned to ECG/BioZ Sequencer can measure different features like ECG, BioZ or

temperature it is also necessary to configure the correct input source to the ADC via input

multiplexer register SUBx_IMUX_SEL2. A more detailed description of the ECG/BioZ

modulator and its input structure is described in 7.7.

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