User's Manual

SHANGHAI SIMCOM LIMITED
22
Table4-4 Audio interface description
Signal Pin# Description
Direction
AI
/A
O
MIC3_IN 9 Microphone 3 input, single-ended AI
MIC2_IN 10 Microphone 2 input, single-ended AI
HS_DET 11 Headset detection AI
SPKR_DRV_M 12 Speaker driver output, minus AO
SPKR_DRV_P 13 Speaker driver output, plus AO
EARO_M 14 Earpiece amplifier output, differential minus AO
EARO_P 15 Earpiece amplifier output, differential plus AO
MIC_GND 16 GND GND
MIC1_IN 17 Microphone 1 input, single-ended AI
MIC_BIAS 18 Microphone bias output voltage AO
HPH_R 19 Headphone right output AO
HPH_REF 20 Headphone driver amplifier ground reference AI
HPH_L 21 Headphone left output AO
Figure4-2 Audio application diagram
4.5 Camera interface
SIMT1502 contains two camera interface. Primary camera interface use 2-lane MIPI_CSI0,
supports CMOS and CCD sensors, up to 8MP sensors. Secondary camera interface use 1-lane
MIPI_CSI1, and 1.5Gbps per lane. Both are controlled by I2C bus.
See Table4-5 and Figure4-3for more details.
Table4-5 Camera interface description
Signal Pin# Description
Direction
AI
/A
O
SCAM_RST_N 3 Camera0 (front camera) reset DO
SCAM_MCLK1 4 Camera0 master clock 1 DO
MIPI_CSI1_LN0_P 5 MIPI camera serial interface 1 lane 0 – positive AI
,A
O
MIPI_CSI1_LN0_N 6 MIPI camera serial interface 1 lane 0 – negative AI, AO