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Note:
Level translate circuits is not suitable for applications of baud rates above 460Kbps.
5.6 ADC interface
NL668-LA series module support two channels ADC interface. Use AT+TADC command can read the
value of ADC interface. The voltage range of ADC interface is 0.3V~VBAT_BB.
PIN Name
I/O
ADC0
I
ADC1
I
5.7 PCM interface
NL668-LA series module provides a PCM interface for communication with digital audio devices such as
an external CODEC.
5.7.1 Support model
Product model
NL668-LA
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FIBOCOM NL668-LA Series Hardware User Manual
Figure 5- 13 UART Level Translate Reference 2
Pin Num.
Description
45
Analog to digital converter interface 0
44
Analog to digital converter interface 1
Table 5- 12 ADC Pin Definitation
Description
Support
Table 5- 13 Support Model of PCM
Page 39 of 65
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