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2.2.5 PWM .................................................................................................................................................. 27
2.2.6 SD/MMC/SDIO ................................................................................................................................... 28
2.2.7 CIR ...................................................................................................................................................... 28
2.2.8 GPADC ................................................................................................................................................ 29
2.2.9 I2S ...................................................................................................................................................... 29
2.3 Video Subsystem .......................................................................................................................................... 30
2.3.1 CSI ...................................................................................................................................................... 30
2.3.2 JPEG ................................................................................................................................................... 30
2.4 AUDIO Subsystem ......................................................................................................................................... 31
2.4.1 DMIC .................................................................................................................................................. 31
2.4.2 AUDIO CODEC .................................................................................................................................... 31
2.5 Wi-Fi Subsystem ........................................................................................................................................... 32
2.5.1 Wi-Fi MAC .......................................................................................................................................... 32
2.5.2 Wi-Fi Baseband .................................................................................................................................. 32
2.5.3 Wi-Fi Radio ........................................................................................................................................ 33
2.5.4 Front End Module Control ................................................................................................................. 33
3 Electrical Characteristics .......................................................................................................................................... 34
3.1 Absolute Maximum Ratings .......................................................................................................................... 34
3.2 Recommended Operating Conditions ........................................................................................................... 35
3.3 Digital IO Characteristics ............................................................................................................................... 35
3.4 Bootstrap Modes and Pins ............................................................................................................................ 36
3.5 High Frequency Reference Clock .................................................................................................................. 37
3.6 Low Frequency Reference Clock ................................................................................................................... 37
3.7 Audio Codec Specifications ........................................................................................................................... 39
3.8 Wi-Fi 2.4G RF Receiver Specifications .......................................................................................................... 40
3.9 Wi-Fi 2.4G RF Transmitter Specifications ...................................................................................................... 41
3.10 Power Consumption ...................................................................................................................................44
4 Package Specifications ............................................................................................................................................. 47
4.1 Pin Layout ..................................................................................................................................................... 47
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