LG LG-A270 - Call History

3. TECHNICAL BRIEF
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Copyright © 2012 LG Electronics. Inc. All right reserved.
O nly for training and service purposes
LGE Internal Use Only
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3. TECHNICAL BRIEF
3.1.1 Platform features
General
r*OUFHSBUFE WPJDF-band , audio-band ,RF ,FM and base-band analog front ends
r'$$41NNYNN-ball , 0.5mm pitch package
MCU subsystem
r"SN&+-S 32-bit RISC processor
r)JHI-performance multi-layer AMBA bus
r0QFSBUJPO GSFRVFODZBU.I[
rTFUTPGHFOFSBM-Purpose timers.
r$JSDVJUTXJUDIEBUB DPQSPDFTTPS
r%JWJTJPODPQSPDFTTPS
Serial flash interface
r4VQQPSUT 41*BOE21*TFSJBMGMBTI
r4VQQPSUT PQFSBUJOH GSFRVFODZVQUP.)[
User interfaces
r-row x 5-column keypad controller with a hardware scanner
r4*.64*. DPOUSPMMFS XJUIIBSEXBSF55 QSPUPDPM DPOUSPM
r3FBM-time clock (RTC) operating with a separate power supply
r(FOFSBM-purpose I/Os (GPIOs)
rTFUPG1VMTF8JEUI.PEVMBUJPO 18.PVUQVU
r.BYJNVN FYUFSOBMJOUFSSVQU MJOFT
Connectivity
rTFUTPG6"35XJUIIBSEXBSF GMPXDPOUSPMBOE TQFFEVQUP.CQT
r'4-4 64#EFWJDFDPOUSPMMFS
r%"*1$.BOE*4JOUFSGBDFGPSBVEJP BQQMJDBUJPO
3.1.2 Modem features
Radio interface and baseband front-end
r%'.USBOTNJUUFS IBTEJHJUBM 1.EBUB QBUIXJUIUIFCBTFCBOE GSPOU-end
rE#EZOBNJD SBOHFEFMUB-sigma ADC converts the downlink IF baseband
*BOE 2TJHOBMT UPUIFEJHJUBM CBTFCBOE
r-bit D/A converter for Automatic Power Control (APC)
r1SPHSBNNBCMF SBEJP 39GJMUFSXJUIBEBQUJWF CBOEXJEUI DPOUSPM
3.1.1 Platform features
3.1.2 Modem features