5 4 3 2 1 LAN9303 56QFN Customer Evaluation Board Assy 6550 PCB Revision A Schematic Revision 1.4 D Design Details D Board: Assy 6550 Chip: LAN9303 Board Form Factor: 3.5"x4" C Circuit Diagrams utilizing SMSC Products Are Included As A Means Of Illustrating Typical Semiconductor Applications: Consequently Complete Information Sufficient For Construction Purposes Is Not Necessarily Given. The Information Has Been Carefully Checked And Is Believed To Be Entirely Reliable. However, No Responsibility Is Assumed For Inaccuracies. Furthermore, Such Information Does Not Convey To The Purchaser Of The Semiconductor Devices Described Any License Under The Patent Rights Of SMSC Or Others. SMSC Reserves The Right To Make Changes At Any Time In Order To Improve Design And Supply The Best Product Possible. Assembly: 56QFN C Revision History ITEM Rev 1.0 to 1.3: BLOCK DIAGRAM All Pages: Update to page formatting, Block Diagrams, & Titleblocks. Rev 1.3 to 1.4: Page 5: Changed Ethernet magnetics module center-tap resistor values (R79, R88) from 49.9 Ohms to 10.0 Ohms. Page(s) Title Page 1 Power 2 LAN9303 3 MII, Reset, I2C 4 LAN9303 Ethernet Ports 5 B B A A Title LAN9303 3-Port Switch w/ Single MII/RMII/Turbo MII Size C Date: 5 4 3 2 Engineer Assembly No. R.W. 6550 Wednesday, October 07, 2009 1 PCB Rev Schematic Rev A Sheet 1.4 1 of 5 5 4 3 2 1 +5V P1 1 + C3 0.01uF 50V 10% 2 R3 402 1/10W 1% G 2 C4 0.1uF 25V 10% +3.3V C2 22uF 16V 10% 1 1 1 - 4 1x3 2 1/10W 1% 2 3 1 R4 10.0K 2 D 1 2 R2 100K 1/10W 1% 2 D 2 1 1 S1 SPDT_TINY_TOG 2 POWER SUPPLY R1 33.2K 1/10W 1% 8 7 6 5 D D D D Q1 2 2 - S S S 1 C1 4.7uF 25V 10% 2 2 GND + 3 F1 2A FUSE_SMF GND INT 1 3 3 2 1 1 1 +V JP1 IRF7424 +5V_FUSE JP2 3 LED1 Green LED LED_0805 D 1 1 G 2 S Q2 2N7002 SOT23 NOTE: Populate JP2 (1-2) to disable remote power up but enable switch. Populate JP2 (2-3) to disable turn on circuit and force power on. +3.3V Regulator +3.3V VR1 +5V 1 + C6 0.1uF 10V 10% C7 22uF 16V 10% - + - C8 100uF 10V 10% 2 C 2 C 2 C5 0.1uF 10V 10% R5 1.0K 1/8W 1% DNP 2 1 LT1086-3.3 M_PAKAGE_3 2 1 1 1 2 4 2 Vout Vout#4 1 Vin 1 3 Adj/Gnd JP3 R6 0 Power Supply Filtering LAN9303 +3.3V VDD33A1 +3.3V VDD33A2 1 1 1 1 2 2 2 VDD33BIAS C28 4.7uF 6.3V 20% 0603 1 1 2.0 Amp/0.05 DCR C27 4.7uF 6.3V 20% 0603 DNP C29 0.1uF 16V 10% 2 C26 0.1uF 16V 10% 2 C25 0.1uF 16V 10% B 2 2 2.0 Amp/0.05 DCR 1 1 2 2 1 1 C24 0.1uF 16V 10% +3.3V FB4 2 2 Place 4.7uF by LAN9303-41 C23 4.7uF 6.3V 20% 0603 2 1 1 C22 0.1uF 16V 10% C19 0.1uF 16V 10% FB3 1 2 2 2 1 1 1 1 C18 0.1uF 16V 10% VDD18PLL VDD18CORE TP2 C21 0.1uF 16V 10% C17 0.1uF 16V 10% VDD18TX TP1 C20 4.7uF 6.3V 20% 0603 C16 0.1uF 16V 10% 1 VDD18CORE C15 4.7uF 6.3V 20% 0603 2 C14 4.7uF 6.3V 20% 0603 DNP C13 0.1uF 16V 10% 2 C12 0.1uF 16V 10% 2 2.0 Amp/0.05 DCR 1 1 2 1 C11 4.7uF 6.3V 20% 0603 DNP 2 2 2 C10 0.1uF 16V 10% 2 C9 0.1uF 16V 10% 2 1 1 2.0 Amp/0.05 DCR 1 2 1 1 B +3.3V FB2 1 FB1 Place 4.7uF by LAN9303-65 J1 1 J2 2 1 2 A A 1x2 1x2 TP3 MTG1 MTG2 MTG3 MTG4 1 1 1 1 NC NC NC NUM3 Plated Hole .250 Dia. NUM3 Plated Hole .250 Dia. NUM3 Plated Hole .250 Dia. TP4 1 1 NC NUM3 Plated Hole .250 Dia. Title Power Size C Date: 5 4 3 2 Engineer Assembly No. R.W. 6550 Wednesday, October 07, 2009 1 PCB Rev Schematic Rev A Sheet 1.4 2 of 5 4 2 1 D 41 +3.3V P0_MODE0 VDD18PLL 51 VDD18PLL VDD18TX2 48 VDD18TX1 10 31 VDD18CORE VDD18CORE 50 VDD33BIAS 52 55 VDD33A2 VDD33A2 9 15 23 30 32 VDD33IO VDD33IO VDD33IO VDD33IO VDD33IO VDD33BIASVDD18TX VDD33A1 VDD33A2 VDD18CORE 44 47 +3.3V D 3 VDD33A1 VDD33A1 5 R7 2 1 +3.3V TEST1 33 TEST1 34 TEST2 U1 4 MDC 4 MDIO 4 4 4 4 4 4 C TP6 1 MDC MDIO P0_IND3 P0_IND2 P0_IND1 P0_IND0 P0_INDV P0_INER P0_DUPLEX 4 EE_SDA/SDA 4 EE_SCL/SCL EE_SDA/SDA EE_SCL/SCL 22 21 MDC MDIO 2 3 4 5 6 7 20 P0_IND3 P0_IND2 P0_IND1 P0_IND0 P0_INDV P0_INER P0_DUPLEX 35 36 EE_SDA/SDA EE_SCL/SCL TXN1 TXP1 RXN1 RXP1 42 43 45 46 TXN1 TXP1 RXN1 RXP1 5 5 5 5 TXN2 TXP2 RXN2 RXP2 1 56 54 53 TXN2 TXP2 RXN2 RXP2 5 5 5 5 IRQ 38 P0_OUTDV P0_COL P0_CRS P0_INCLK P0_OUTCLK P0_OUTD3/DUPLEX_POL_0 P0_OUTD2/P0_MODE2 P0_OUTD1/P0_MODE1 P0_OUTD0/P0_MODE0 16 18 19 8 17 11 12 13 14 EXRES 49 LED0/GPIO0/AMDIX1_LED0P 5 LED1/GPIO1/AMDIX2_LED1P 5 LED2/GPIO2/E2PSIZE_LED2P 5 LED3/GPIO3/MNGT0_LED3P 5 LED4/GPIO4/MNGT1_LED4P 5 LED5/GPIO5/PHYADDR_LED5P 5 10.0K 1/10W 1% R11 R12 2 1 10.0K 1/10W 1% R13 P0_OUTDV P0_COL P0_CRS R18 P0_INCLK_LAN R17 P0_OUTCLK_LAN P0_OUTD3/DUPLEX_POL_0 P0_OUTD2/P0_MODE2 P0_OUTD1/P0_MODE1 P0_OUTD0/P0_MODE0 R25 1 1 P0_OUTD2/P0_MODE2 2 10.0K 1/10W 1% 10.0K 1/10W 1% R15 2 P0_OUTDV 4 P0_COL 4 P0_CRS 4 P0_INCLK 4 P0_OUTCLK 4 P0_OUTD3/DUPLEX_POL_0 4 P0_OUTD2/P0_MODE2 4 P0_OUTD1/P0_MODE1 4 P0_OUTD0/P0_MODE0 4 0 0 DUPLEX_POL_0 R16 1 10.0K 1/10W 1% TP5 1x2 P0_MODE2 R14 2 IRQ P0_MODE1 1 P0_OUTD1/P0_MODE1 2 10.0K 1/10W 1% 2 DNP R9 0 29 28 27 26 25 24 1 P0_OUTD0/P0_MODE0 2 10.0K 1/10W 1% 1 P0_OUTD3/DUPLEX_POL_0 2 10.0K 1/10W 1% C 1 R8 0 LED0/GPIO0/AMDIX1_LED0P LED1/GPIO1/AMDIX2_LED1P LED2/GPIO2/E2PSIZE_LED2P LED3/GPIO3/MNGT0_LED3P LED4/GPIO4/MNGT1_LED4P LED5/GPIO5/PHYADDR_LED5P LED0/GPIO0/AMDIX1_LED0P LED1/GPIO1/AMDIX2_LED1P LED2/GPIO2/E2PSIZE_LED2P LED3/GPIO3/MNGT0_LED3P LED4/GPIO4/MNGT1_LED4P LED5/GPIO5/PHYADDR_LED5P R10 2 12.4K 1 37 nRST XI 39 XO 40 LAN9303 R30 57 4 nRST VSS_EPAD 1% 1 2 1.00M Y1 25.000MHz HC49US 1 2 B C31 30pf 0805 +3.3V 2 MDC 2 R31 1.50K 1/10W 1% 1 C30 30pf 0805 3 B JP4 1 JP5 1x2 MDIO 1 2 1 1 3 R33 10.0K 1/10W 1% 2 1x3 2 R32 2.49K 1/10W 1% S2 P0_MODE0 P0_MODE1 P0_MODE2 DUPLEX_POL_0 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TDA08H0SK1R A A Title LAN9303 Size C Date: 5 4 3 2 Engineer Assembly No. R.W. 6550 Wednesday, October 07, 2009 1 PCB Rev Schematic Rev A Sheet 1.4 3 of 5 4 3 2 1 MII Female for External PHY Board MII Male for External MAC Board Chassis2 Chassis1 5 R34 +5V D R35 R39 P0_CRS P0_COL 3 P0_CRS 3 P0_COL 3 3 3 3 3 R37 0 3 P0_INCLK 3 P0_OUTCLK P0_INCLK 1 P0_OUTCLK 3 2 0 0 0 P0_IND3 P0_IND2 P0_IND1 P0_IND0 P0_INDV 3 P0_INER 3 P0_OUTDV 3 P0_OUTD0/P0_MODE0 3 P0_OUTD1/P0_MODE1 3 P0_OUTD2/P0_MODE2 3 P0_OUTD3/DUPLEX_POL_0 R42 R43 MDC MDIO 0 0 +5V[4] CRS COL TXD3 TXD2 TXD1 TXD0 TX_EN TX_CLK TX_ER RX_ER RX_CLK RX_DV RXD0 RXD1 RXD2 RXD3 MDC MDIO +5V[3] +5V[2] COMMON[18] COMMON[17] COMMON[16] COMMON[15] COMMON[14] COMMON[13] COMMON[12] COMMON[11] COMMON[10] COMMON[9] COMMON[8] COMMON[7] COMMON[6] COMMON[5] COMMON[4] COMMON[3] COMMON[2] COMMON[1] +5V[1] 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 +5V +5V C32 10uF 16V SMD_B + 2 2 DNP R49 49.9K AMP - 174218-2 MII_RA R54 R51 P0_INCLK R56 R58 R60 R61 P0_COL P0_CRS R64 49.9K P2 R50 0 1 0 MDIO_R1 2 0 MDC_R1 3 P0_IND3 4 P0_IND2 5 P0_IND1 6 P0_IND0 7 P0_INDV 8 0 P0_INCLK_R1 9 P0_INER 10 MII_TXER_0 11 0 P0_OUTCLK_R1 12 P0_OUTDV 13 P0_OUTD0/P0_MODE0 14 P0_OUTD1/P0_MODE1 15 P0_OUTD2/P0_MODE2 P0_OUTD3/DUPLEX_POL_0 16 17 0 P0_COL_R1 18 0 P0_CRS_R1 19 20 FEMALE MII CONN J4 D 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 1 1 R48 49.9K MDIO MDC P0_OUTCLK 2 3 MDC 3 MDIO 20 P0_CRS_R2 19 P0_COL_R2 18 P0_IND3 17 P0_IND2 16 P0_IND1 15 P0_IND0 14 P0_INDV 13 P0_INCLK_MRACON 12 P0_INER 11 RXER_0 10 P0_OUTCLK 9 P0_OUTDV 8 P0_OUTD0/P0_MODE0 7 P0_OUTD1/P0_MODE1 6 P0_OUTD2/P0_MODE2 5 P0_OUTD3/DUPLEX_POL_04 MDC_0_R2 3 MDIO_0_R2 2 1 C C +3.3V I2C Serial EEPROM Reset Generator Aardvark I2C Header 1 +3.3V MR# 1 RESET 3 0 TP8 TPS3125 SOT23-5 Threshold = 2.64V Delay = 180ms 5 SCLK 6 1 1 1 24LC64 SOIC-8 R71 10.0K J5 EE_SCL/SCL EE_SDA/SDA JP6 EE_SDA EE_SCL R70 10.0K +3.3V 1 3 5 7 2 4 6 8 EE_SDA/SDA EE_SCL/SCL EE_SDA/SDA 3 EE_SCL/SCL 3 2 A2 SDA R67 10.0K 1/10W 1% 2 3 7 R66 10.0K 1/10W 1% 2 1 A1 WP 2 2 1 8 2 nRST 3 A0 VCC RESET# U2 1 4 4 VDD 2 1/10W 1% GND 1 R73 100 2 S3 2 R72 C34 0.1uF 16V 10% R69 10.0K 1/10W 1% GND 5 U3 1 +3.3V 1 R68 10.0K 1/10W 1% 2 B C35 0.1uF 16V 10% 2 1 +3.3V +3.3V 1 3 5 7 9 B GND NC/+5V NC/+5V MOSI GND SCL SDA MISO SCLK CS 2 4 6 8 10 Aardvark I2C/ SPI Header HEAD2x5_SHRD 2x4 A A Title MII, Reset, I2C Size C Date: 5 4 3 2 Engineer Assembly No. R.W. 6550 Wednesday, October 07, 2009 1 PCB Rev Schematic Rev A Sheet 1.4 4 of 5 4 NOTE: Place 49.9 Ohm resistors near U1. Place 10 Ohm resistor near transformers. R79 10.0 1/10W 1% LED2_ANODE 2 RJ45 2 2 2 2 GRN 2 1 332 1/10W 1% 9 R78 49.9 1/10W 1% T1 Pulse - J0011D01B 1 10 R77 49.9 1/10W 1% 2 R74 LED2_CATHODE C R76 49.9 1/10W 1% 1 R75 49.9 1/10W 1% 1 1 1 VDD33A1 1 3 A 5 XMIT D 3 TXP1 3 TXN1 1 TD+ 4 TXCT 4&5 2 TD- 2 75 1 75 D FULL DUPLEX R80 LED1_CATHODE 1 RCV RXCT 7&8 6 RD- 6 7 NC 8 CHS GND 75 LED_0805 2 kV IMPORTANT NOTE: Capacitors C37-C40 are optional and are not present on the LAN9303 CEB. These capacitors are required for operation in an EMI constrained environment. NOTE: Place 49.9 Ohm resistors near U1. Place 10 Ohm resistor near transformers. R83 T2 Pulse - J0011D01B 9 R88 10.0 1/10W 1% 2 2 2 2 GRN 2 2 LED5_ANODE C38 15pF 50V 5% DNP C39 15pF 50V 5% DNP C40 15pF 50V 5% DNP C 332 1/10W 1% A R87 49.9 1/10W 1% C R86 49.9 1/10W 1% 1 R85 49.9 1/10W 1% 1 R84 49.9 1/10W 1% 1 1 1 C 1 C37 15pF 50V 5% DNP 2 LED5_CATHODE 10 VDD33A2 1 332 1/10W 1% RXP1 RXN1 1 TXP1 TXN1 1 LED0_ANODE 2 2 R82 1 2 LED0_CATHODE 1 12 A C MTG 16 15 MTG GND YEL 14 13 2 R81 0 1210 1000 pF GND C36 0.022uF 50V 10% 3 75 332 1/10W 1% 2 1 3 RXN1 RD+ 5 2 LED1_ANODE 1 LED2 Green LED 3 11 3 RXP1 2 RJ45 XMIT 3 TXP2 3 TXN2 1 TD+ 4 TXCT 4&5 2 TD- 2 75 75 1 FULL DUPLEX R89 LED4_CATHODE 1 RCV IMPORTANT NOTE: Capacitors C42-C45 are optional and are not present on the LAN9303 CEB. These capacitors are required for operation in an EMI constrained environment. A 12 11 C MTG MTG 16 15 13 2 YEL R90 LED3_CATHODE 2 LED3_ANODE 1 B TXP2 TXN2 2 +3.3V +3.3V +3.3V +3.3V B RXP2 RXN2 1 332 1/10W 1% C42 15pF 50V 5% DNP C43 15pF 50V 5% DNP C44 15pF 50V 5% DNP 1 CHS GND LED_0805 2 kV C45 15pF 50V 5% DNP 2 8 6 1000 pF 332 1/10W 1% LED3 Green LED 7&8 1 NC 75 2 LED4_ANODE 1 2 RD- 7 75 1 RXCT 6 2 3 2 5 GND C41 0.022uF 50V 10% RD+ GND 1 3 RXN2 3 14 3 RXP2 +3.3V +3.3V 3 LED4_ANODE R93 10.0K 1/10W 1% LED5_ANODE R94 10.0K 1/10W 1% 1 1 LED0/GPIO0/AMDIX1_LED0P LED1/GPIO1/AMDIX2_LED1P LED2/GPIO2/E2PSIZE_LED2P LED3/GPIO3/MNGT0_LED3P LED4/GPIO4/MNGT1_LED4P LED5/GPIO5/PHYADDR_LED5P JP12 1 R92 10.0K 1/10W 1% LED3_ANODE 1 R91 10.0K 1/10W 1% LED5/GPIO5/PHYADDR_LED5P LED4/GPIO4/MNGT1_LED4P JP11 LED2_ANODE 1 2 2 JP10 1x3 LED1_ANODE 1 1 2 LED0_ANODE JP9 1x3 2 JP8 1x3 LED3/GPIO3/MNGT0_LED3P 3 3 1 3 1 JP7 1x3 LED2/GPIO2/E2PSIZE_LED2P 1 LED1/GPIO1/AMDIX2_LED1P LED0/GPIO0/AMDIX1_LED0P R95 10.0K 1/10W 1% LED0/GPIO0/AMDIX1_LED0P 3 LED1/GPIO1/AMDIX2_LED1P 3 LED2/GPIO2/E2PSIZE_LED2P 3 LED3/GPIO3/MNGT0_LED3P 3 LED4/GPIO4/MNGT1_LED4P 3 LED5/GPIO5/PHYADDR_LED5P 3 R96 10.0K 1/10W 1% LED0/GPIO0/AMDIX1_LED0P 2 2 2 JP17 LED5_CATHODE JP18 Title 3 1 3 LED2/GPIO2/E2PSIZE_LED2P LED1/GPIO1/AMDIX2_LED1P LED4_CATHODE 2 2 LED3_CATHODE JP16 1x3 1 3 JP15 1x3 1 JP14 1x3 3 JP13 1x3 1 LED2_CATHODE 2 LED1_CATHODE 2 LED0_CATHODE 2 2 A 2 A LED3/GPIO3/MNGT0_LED3P LED4/GPIO4/MNGT1_LED4P LAN9303 Ethernet Ports LED5/GPIO5/PHYADDR_LED5P Size C Date: 5 4 3 2 Engineer Assembly No. R.W. 6550 Wednesday, October 07, 2009 1 PCB Rev Schematic Rev A Sheet 1.4 5 of 5