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BTM521 DATASHEET

CI Input Capacitance

5.0

Resistive Strength

Rpuw weak pull-up strength at +3V3-0.2V

500k

Rpdw weak pull-up strength at 0.2V

500k

Rpus strong pull-up strength at +3V3-0.2V

10k

50k

Rpds strong pull-up strength at 0.2V

10k

50k

6.3.2

Internal CODEC - Analogue to Digital Converter

Parameter

Min

Typical

Max

Unit

Resolution

Bits

Input Sample Rate

44.1

kHz

Signal / Noise, fin=1kHz, BW=20Hz->20kHz A-

Weighted THD+N<1% 150mV Vpk-pk

Fsample = 8kHz

Fsample = 11.025kHz

Fsample = 16kHz

Fsample = 22.05kHz

Fsample = 32kHz

Fsample = 44.1kHz

Digital Gain

-24

21.5

6.3.3

Internal CODEC - Digital to Analogue Converter

Parameter

Min

Typical

Max

Unit

Resolution

Bits

Output Sample Rate, Fsample

kHz

Signal / Noise, fin=1kHz, BW=20Hz-

>20kHz A-Weighted THD+N<0.01%

0dBFS signal Load-100k

Fsample = 8kHz

Fsample = 11.025kHz

Fsample = 16kHz

Fsample = 22.05kHz

Fsample = 32kHz

Fsample = 44kHz

Fsample = 48kHz

Fsample = 96kHz

Digital Gain

-24

21.5

Gain Resolution

1/32

Table 3

Table 4

Table 5

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