User Guide

RM-11

System Module CC Technical Documentation

Camera

The VGA camera module is connected to the baseband (UPP) through an HW accelerator

IC. And external 1.8 V regulator is used as a power supply (VDIG) for the camera module

and HW accelerator, together with VFLASH2.

Figure 16: Camera connections to baseband

The VGA camera has a resolution of 640 x 480 with a pixel size of 5.6um x 5.6um. Both

the camera and the HW accelerator support sleep functionality in order to minimize the

current consumption.

Flashlight

The flashlight feature on C-Rio is driven by the white LED driver and is controlled by

the UEM. The circuit for the flashlight is driven by TK11851TL. In this situation, the driver

is used as a boost DC/DC. Vout is set using three precision resistors in R300, R316, and

R317. Vout = Vfb * (1+ (R316+R317)/ R300). The TK11851L is an active-high enable

device, whose enable signal is tied to Klight/Dlight signals from the UEM. When Klight

goes high it turns on the TK11851TL driver and the V301 transistor, which allows a path

to GND.

VDIG VFLASH2

VFLASH2

UPP

CamSDX

LCDCamClk

CamClk

LCDCamTxDa

CamCSX

CamRxDa

GenIO(27)

GenIO(28)

GenIO(26)

GenIO(3)

LCDUI(0)

LCDUI(1)

ccelerator

Camera

CCISCL

CCIDA

CCPCLKN

CCPCLKP

CCPDATAN

CCPDATAP

VDIG