LTE Standard Module Series
QuecPython_EC200U&A-XX_C4-P01_EVB_Specification_and_User_Guide 25 / 32
4.4. 6-wire Nor Flash
Figure 11: Reference Circuit for W25Q64JWPIQ Nor Flash
The external 6-wire Nor Flash only supports EC200U series. When measuring power consumption,
disconnect the Flash 0 Ω resistor.
4.5. MIC & SPK
The EVB carries a PA (AW8733A) of AWINIC, and its gain is optional: 12 dB, 16 dB, 24 dB and 27.5 dB. It
supports one line pulse control.
Figure 12: Reference Circuit for Microphone & Loudspeaker
GPIO10 of the module is used to control the first-line pulse mode to select the working mode. The number
of rising edges of the first-line pulse signal determines the working mode of the chip. When the GPIO10
signal is directly pulled up, that is, a rising edge, the chip starts to work, Av = 4V/V; When GPIO10 is in the
pulse signal order of “high → low → high”, that is, two rising edges, the chip enters the anti-crack mode
and the gain rises to Av = 6V/V; When GPIO10 sends three rising edges, Av = 16V/V, there is no
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