联想A5500电路图联想手机全型号维修图纸AL912_MB_WSCH_V1 0_150515

SCALE: ? SHEET: OF ? REVISION RECORD ? DATE: ? APPROVED: ? LTR ? ECO NO: ? 6 ? 5 ? 4 ? 3 ? 2 ? 1 ? DRAWING NO: ? D ? C ? B ? A ? TITLE: ? COMPANY: ? RELEASED: ? DATED: ? DATED: ? QUALITY CONTROL: ? CHECKED: ? DATED: ? DATED: ? DRAWN: ? D ? C ? B ? A ? CODE: ? SIZE: ? REV: ? 20 ? 1 ? ? V1.0 ? ? D ? ? 01_BLOCK_DIAGRAM ? HQ ? 9/22/14 ? ? ? ? ? ? ? GUWEINA ? C / 47 / uF / 0805 can be replaced ? by 2pcs C / 22 / uF / 0603 ? BB-jojo ? DVDD12_EMI1.14V1.3V-jojo ? AVDD18_MIPIRX0 and AVDD18_MIPIRX1 power ball must be powered by 1.8V-jojo ? USB 3.3V1UF-jojo ? USB 1.8V-jojo ? FSOURCE_P(EFUSE) ? (1)FSOURCE_P EFUSE power(VEFUSE) should be ? only for EFUSE usage(not share with other application) ? (2)W/I EFUSE program, VEFUSE need 1uF bypass cap ? (pls refer to LDO output voltage/current table) ? (3)W/O EFUSE program, VEFUSE bypass cap should be NC. ? high speed ? high speed ? SDIO3.0 for MT6630 :high speed ? PINE3GND ? close to ball ? FRONT CAM ? REAR CAM ? C154 close to DVDD18_MC0 and keep trace length 150mils ? C153 close to DVDD28_MC1 and keep trace length 1.3V ? SN2145B ? EN1.4V ? AW8155A ? EN1.3V ? EN1.3V ? AW8155A ? EN1.4V ? SN2145B ? EN1.3V ? AW8155F ? Earphone Detection Circuit ? R703 ? R724 ? R725 ? Low Cost Mode ? Traditional Mode (ACC) ? NC ? NC ? 47K ? NC ? Mode ? 470K ? 47K ? NC ? 0R ? R734 ? MIC - Main ? Earphone MICPHONE ? RECEIVER ? close to BB ? close to connector ? connect to Audio Jack GND ? AUDIO PA ? MIC - Sub ? close to BB ? close to MIC ? close to BB ? close to MIC ? close to MIC ? tie together ? tie together ? tie together ? differential,GND around ? ALL GND Tie together and single via to GND plane ? 25mil ? 25mil ? 25mil ? 25mil ? 25mil ? close to IC ? close to connector ? As for R806/R807/C803/C807 value, ? please refer to MT6322/6323 design noitce ? (AC couple audio design note) ? EAR_JACK ? 1.8V ? bias ? bias ? bias ? POP noise ? BOMAW8155 ? FM ? BOM15nF ? D713 BOM3.3V TVS ? HQ11510023000 ? TVS ? TVS ? BIAS ? C722,C723=0R ? R710,R709,R711,R712,C732,C730=NC ? BIAS ? C722,C723 =1UF ? BIAS ? C704,C705=0R ? R715,R713,R714,R716,C734,C733=NC ? BIAS ? C704,C705=1UF ? D701,D702 NC ? BIAS(default) ? C709,C710=0R ? R701,R702=NC ? BIAS ? C709,C710=100nF ? R701=1K;R702=1.5K ? fc=1/(2*pi*Cin*28.5K)=372HZ ? Cin=15nF ? 1.8V ? ? differential,GND around ? ALL GND Tie together and single via to GND plane ? 25mil ? 25mil ? 25mil ? 25mil ? 25mil ? 1.8V ? BOMAW8155 ? BOM15nF ? fc=1/(2*pi*Cin*28.5K)=372HZ ? Cin=15nF ? C715=0R ? C715=4.7UF ? C714=1UF ? C714=NC ? C730=1UF ? C732=4.7UF ? R710,R712=1K ? R709,R711=1.5K ? C733=1UF ? C734=4.7UF ? R713,R714=1.5K ? R715,R716=1K ? LINK ? C715 ? R0402_0R ? B701 ? B0402-BK1005HM102-T ? B702 ? B0402-BK1005HM