samsung D820 free download

File name SGH-D820_schematics.pdf

GSM850 VR101 VC040205X150R 2.8V +VCC_SYN RFS100 KMS-512 ANT101 ANT102 G 1 A 2 C 3 G 4 GSM900RXTX VR102 VC040205X150R 1 1 2 2 3 3 4 4 1 1 2 2 3 3 4 4 R127 0 C102 9PF 50V L141 33nH C147 100NF 16V 2.8V +VCC_SYN L118 NC R138 0 VCTL2 15 PB2 16 PA2 50V VCTL1 14 13 L121 82nH L144 18nH C103 8PF J_ANT FESW1 FESW2 FESW3 C158 NC C159 NC C160 33PF 25V R135 R136 R137 10nH 10nH 0 1 8 ANT GSM900RX 4 12 VC1 GSM900RX 5 9 VC2 DCSRX 1 13 VC3 DCSRX 14 10 DCS|PCSTX PCSRX1 2 11 850GSM|GSM900TX 7 850GSMRX PCSRX2 3 6 850GSMRX G LMG004W-5129A 15 GND GND PC2 GND GND 12 F101 C104 NC C105 33PF 50V 3 NJG1524APC1 PC1 GND 4 VCTL1 9 10 U100 GND 11 2 PB1 5 NC C107 39PF 50V 6 7 8 PA1 GSM900 RX C106 33PF 50V L101 10nH FESW1 Tx(GSM900) Tx(DCS1800/1900) RX(GSM900) Rx(DCS1800) Rx(PCS1900) H L L L L FESW2 L H L L L FESW3 L L(H) L L H 2.8V +VCC_SYN L103 0 2.8V +VCC_SYN C110 NC L140 C112 33PF 50V C109 7PF 50V PON_3587_SYNTH PCS Rx NC R129 100,1% 3 L137 5.6nH TCX100 TCO-5871U 26MHz OUT GND 2 C118 33PF 50V C116 100NF 16V C120 C146 NC 4 VCC VCON 1 C114 100PF 50V R103 R105 10 10K DCS Rx C121 18PF 50V NC 30 26 24 28 29 27 VCCCP VCCRFLO VCCSYN EXTRES RFTUNE GNDREF REFIN LBIB CTRL LBIA DCS_TX C161 1.8PF 50V R132 NC L135 C162 1.8PF 50V C145 NC 3.3nH C157 47PF 50V GSM_TX DCS C127 220PF 16V 2.8V +VDD_RX_TX PON_PA C131 220PF 16V typical 3.8V VBAT F103 NFM18PC104R1C3D 3 2 TA100 47UF 6.3V C136 12PF 50V C135 10NF 16V PAM100 TQM7M5004 MODE_SELECT RAMP R112 10K 1 3 4 5 6 7 8 DCS/PCSIN BAND TX_EN VBATT MODE VRAMP VBIAS DCS/PCSOUT C153 12 VCC NC C166 150PF DCS_TX 14 C138 33PF 50V 1 PON_SW R128 0 R109 NC C126 0.5PF 50V 31 R130 0 L139 1.5nH VCCRF SWBIA SWBIB 25 23 22 21 C122 18PF 50V L106 6.2nH AFC C123 NC 32 20 CLKFDBX REFVCC 34 GNDRF1 CLKOUT HBIA HBIB GNFRF2 LBO EN TXVCC CLK SWON DATA GND2 GND3 GND4 NC1 NC2 C124 100PF 50V D_REF_CLK 33 35 36 U102 UAA3587EHN/C2 17 PGMDIV VDDL GNDL 18 19 +VDD_IO_LOW 37 38 15 16 RF_EN 39 14 RF_CLK RF_DATA R111 C128 NC 0 2.8V +VDD_RX_TX 40 46 45 44 43 42 GNDRF3 GNDRF4 VCCIF FESW1 FESW2 FESW3 HBO QB IB 4 5 6 IA 9 10 2 7 1 3 8 QA 41 GND1 11 12 13 C134 100PF 50V C148 270PF 50V R113 C163 C149 NC 50V L133 12nH 33PF 100K R114 0 RX_TX_QP 10 C152 33PF 50V L145 0.5PF R116 0 FESW1 FESW2 FESW3 R117 0 RX_TX_IN RX_TX_IP R115 0 RX_TX_QN 9 GSM850/900IN GSM850/900OUT GND GND GND GND GND GND 2 1113 15 16 17 L138 18nH C144 NC 2.8V +VDD_RX_TX U104 UPG2012TK-E2 6 5 4 VDD IN VCONT OUT1 GND OUT2 1 2 C139 39PF 50V L142 10nH 8 6 4 G2 F102 7 OUT1 IN1 1 2 G1 IN2 G4 G3 OUT2 L143 10nH C165 39PF 50V 1 2 U105 UPG2012TK-E2 OUT1 GND OUT2 VDD IN VCONT 6 5 4 GSM_TX GSM900RXTX VR100 VC040205X150R 2.8V +VDD_RX_TX 5 3 C141 47PF 50V 3 3 C142 47PF 50V C156 NC FAR-G5ED-897M50-D2DE L117 22NH Title RF Schematic SGH-D828/RF G Date: Sheet 1 of 8 2.6V 3.3V +VDD_USB +AVDD_HFA 1.875V +VDD_GSM_CORE 1.8V +VDD_IO_LOW 2.6V +AVDD 2.9V +VDD_IO_HIGH 1.8V +VDD_IO_L