User's Guide

ATOP3.5G Product Description
80447ST10636A rev.10 – 2015-03-03
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Reserved. Page 13 of 66
Mod. 0808 2011-07 Rev.2
Symbol
[1]
Pin Level Description
[2]
BB_AUDIO_OUT1_2_RN K15 negative right out
BB_AUDIO_SPKL_P D17 positive speaker left out
BB_AUDIO_SPKL_N E17 negative speaker left out
BB_AUDIO_SPKR_P F17 positive speaker right out
BB_AUDIO_SPKR_N G17 negative speaker right out
Digital
BB_I2S_SCLK_PCM_CLK E14 1.8
BB_I2S_WS_PCM_SYNC D15 1.8
BB_I2S_DOUT_PCM_DATA_IN E12 1.8
BB_I2S_MCLK_PCM_DATA_OUT E13 1.8
BB_I2S_DIN G14 1.8
System interfaces
USB interface
BB_USBDN U12 USB data N
BB_USBDP U11 USB data P
BB_USBID U13 USB device connect
BB_USBVBUS U14 USB V
bus
detect
SDIO interface
BB_SDIOCMD P7 2.85
BB_SDIOCLK P8 2.85
BB_SDIO_PWR_EN_N P9 2.85
BB_SDIO_DET P11 1.8 active low, no pull up needed
BB_SDIOD0 U6 2.85
BB_SDIOD1 U7 2.85
BB_SDIOD2 U8 2.85
BB_SDIOD3 U9 2.85
USIM interface ISO7316-3 class B/C I/O levels
BB_SIM_DATA E16
BB_SIM_CLK D14
BB_SIM_RST D13
BB_USIM_DETEC_N L14 active low, no pull up needed
Battery and power management
VBAT_RTC_SNK J18 power supply for microcontroller
RTC battery
VBAT_SNK J2; J4 power supply for whole system
except RF power amplifier and
utility processor [13]
VBAT_PA_SNK J1; K1; K2 power supply for RF power
amplifier [13]
VBAT_MC_SNK K4 main power supply for utility
processor