3. TECHNICAL BRIEF 3.1 GENERAL DESCRIPTION The LG-P990 supports UMTS-900, UMTS-1900, UMTS-2100, GSM-850, GSM-850, GSM-900, GSM-1800, and GSM- 1900 based GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband. The quad-band GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop that translates the GMSK-modulated or 8-PSK-modulated signal to RF.
3. TECHNICAL BRIEF 3.13 Main (8M pixels) & Sub (1.3M pixels) Camera LG-P990 supports two cameras. One is 8M pixels, main camera, the other is 1.3M pixels, sub camera used VT & self camera scene. CAM_AVDD_2V8 CAM_VDIG_1V2 CAM_VIO_1V8 CAM_AF_2V8 FB801...
The ERM motor, also distinguished as ‘Q-coin Motor’ creates a certain kind of vibration controlled and defined uniquely by LG Electronics. The followings are the certain examples of conditions that the users may feel the vibration from the phone: Incoming Call (in Silence Mode), Google Keys Pressed, Turn-on / -off, Dialing, and Text Messaging.
The gyro sensor(MPU3050) can sense angular velocity not gravity and accelerated motion. The gyro sensor applied in LG- P990 can detect 3-axis rotation force sensing X,Y and Z angular velocity. And the gyro sensor data is supplemented by the motion sensor data. It make possible user to development application SW using gyro sensor data like that motion games.