5 4 3 2 1 LAN9500 / LAN9500A USB 2.0 -to- 10/100 Ethernet Customer Evaluation Board Assy 6555 D D PCB Revision B Schematic Revision 1.2 Design Details Board: Assy 6555 Chip: SMSC LAN9500 / LAN9500A 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. Board Form Factor: USB Dongle C Assembly: 56 Lead QFN w/ Exposed GND Pad Revision History ITEM BLOCK DIAGRAM Rev 1.0: C Page(s) Title Page 1 LAN9500 / LAN9500A, USB / Ethernet / Power / EEPROM 2 Initial release, Rev B Rev 1.1: Relabeled RJ45 LEDs B Rev 1.2: B Added support for LAN9500A Corrected R9 - R12: 75.0K to 75.0-Ohm A A Title LAN9500 / LAN9500A USB 2.0 -to- 10/100 Ethernet Dongle Size Engineer Assembly No. R. W. Date: 5 4 3 2 6555 Friday, May 21, 2010 1 PCB Rev Schematic Rev B Sheet 1.2 1 of 2 5 4 3 LAN9500 / LAN9500A 2 1 VDD33A Ethernet +3.3V NOTE: Place 49.9 Ohm resistors near LAN9500 / LAN9500A. Place 0 Ohm / 10 Ohm resistor near transformers. 3 2 RXP RXN 6 5 RXP RXN 24 nRESET EECLK/PWR_SEL EECS EEDO/AUTOMDIX_EN EEDI 29 30 31 32 EECLK/PWR_SEL EECS EEDO/AUTOMDIX_EN EEDI 34 PHY_SEL VBUS_DET EXRES USBRBIAS 15 1 2 3 4 5 6 7 8 RD_P nFDX_LED/GPIO8 nLNKA_LED/GPIO9 nSPD_LED/GPIO10 +3.3V USBDP USBDM R7 0 VBUS_DET 20 8 R6 1 12.0K 2 16 R8 1 12.0K 2 4 5 NC1 NC2 NC3 NC4 13 12 7 RD+ RX+ 10 6 RDCT RXCT 11 8 RD- RX- RD_N 9 Device R6 LAN9500 12.4K Ohm 1% LAN9500A * 12.0K Ohm 1% * Default Configuration SHIELD1 SHIELD2 10 9 + 16 - 2 Wurth-Midcom 749 020 102 1 C2 2 4700pF 2 R13 10M R9 75 1/16W 1% 2 49 13 1 R10 75 1/16W 1% R11 75 1/16W 1% R12 75 1/16W 1% 1 C4 1000pF 1KV 10% XO XI 2 C3 1000pF 1KV 10% 1 R30 309 1/16W 1% 2 FDX 19 18 R26 2 Device R26 LAN9500 1M Ohm 1% LAN9500A * DNP * Default Configuration 1.00M 1 2 C 1 NC 11 12 SPD 2 14 HOLE2 HOLE1 +3.3V nPHY_INT TEST3 RJ1 RJ2 RJ3 RJ4 RJ5 RJ6 RJ7 RJ8 15 C 33 14 YELLOW C1 0.022uF 50V 10% +3.3V TEST1 TEST2 TD_N 1 1 12 11 14 TX- 1 nRESET TP1 USBDP USBDM TXCT + - 2 RXCLK RXDV U1 TXEN RXER CRS/GPIO3 LAN9500/LAN9500A COL/GPIO0 TXCLK TXD3/GPIO7/EEP_SIZE TXD2/GPIO6/PORT_SWAP TXD1/GPIO5/RMT_WKP TXD0/GPIO4/EEP_DISABLE 26 27 28 TD- 13 1 41 42 43 44 45 46 47 53 54 55 56 nFDX_LED/GPIO8 nLNKA_LED/GPIO9 nSPD_LED/GPIO10 TDCT 2 16 2 nTRST/RXD0 TDO/nPHY_RST TCK/RXD1 TMS/RXD2 TDI/RXD3 DNP LED_0603 DNP 3 TX+ 1 36 37 38 39 40 309 LED1 Blue LED TD+ 2 MDC/GPIO2 MDIO/GPIO1 1 1 22 23 D GREEN TXP TXN TD_P 1 2 +3.3V R29 309 1/16W 1% 2 2 1 Amphenol - RJHSE-5381 LNKA T1 TXP TXN R23 1 R28 309 1/16W 1% J2 1 R4 0 2 R5 49.9 1/16W 1% 1 1 R3 49.9 1/16W 1% Device R4 LAN9500 10 Ohm 1% LAN9500A * 0 Ohm * Default Configuration 2 1 R2 49.9 1/16W 1% 2 R1 49.9 1/16W 1% 2 4 7 9 15 VDD33A VDD33A/NC VDD33A VDD33A 25 35 48 51 52 VDD33IO VDD33IO VDD33IO VDD33IO VDD33IO 10 17 VDDUSBPLL +3.3V VDDPLL 21 50 VDDCORE VDDCORE D 1 VDD33A 2 +3.3V 1 VDDUSBPLL VDDCORE VDDPLL 1 EP DNP 1 2 1 2 +3.3V Regulator +3.3V B 1 2 1 3 EECS 5 EECLK/PWR_SEL 4 DI DO 1 GND 2 LP38693MP-3.3/NOPB +5V VR1 C7 0.1uF 16V 10% EEDI 4 1 2 2 EEDO/AUTOMDIX_EN TP2 VCC R18 EEDO/AUTOMDIX_EN 1 6 U2 CS VIN VEN NC VOUT 3 MTG4 CLK R24 10.0K 93AA56A-OT 1/16W SOT23-6 1% 500mA C15 1.0uF 16V 10% 0603 2 1 SOT223_5 2 MTG3 1 C13 0.1uF 16V 10% 2 MTG2 1 1 MTG1 1 C14 0.1uF 16V 10% 5 1 10.0K 0402 DNP B +3.3V Pin 5 is TAB 1 uWire EEPROM 2 GND Test Point 1 2 AUTO_MDIX disable optional strap. LED_0603 DNP C6 30pF 50V 5% 3 C5 30pF 50V 5% LED2 Blue LED Y1 25.000MHz HC49US GND 57 1 +3.3V Power Supply Filtering USB Connector Optional Reset Monitor VCC_USB C12 4700pF 25V 10% 0402 2 C11 1500pF 50V 10% P1 USBDM USBDP A VDDCORE +3.3V C28 1500pF 50V 10% 2 C23 4700pF 25V 10% 0402 1 2 C26 4700pF 1 1 C22 0.1uF 16V 10% 2 1 1 C27 1.0uF 16V 10% 0603 2 2 C21 1500pF 50V 10% 2 1 1 C20 4700pF 25V 10% 0402 2 1 C19 4700pF 25V 10% 0402 2 2 C18 0.1uF 16V 10% 2 C17 0.1uF 16V 10% 1 1 1 C16 1.0uF 16V 10% 0603 2 2 1 FB3 VDDPLL 0.5amp 120 Ohm 100MHz 1 2 1 VCC 2 3 DD+ 4 GND 5 6 SHLD1 SHLD2 2 C25 4.7uF 16V 10% 0805 VCC RST nRESET 1 VSS 1 C10 4700pF 25V 10% 0402 0.5amp 120 Ohm 100MHz SOT23 VTH = 2.88 V Treset = 100-200 mS +3.3V 1 2 0.5amp 120 Ohm 100MHz 2 2 C9 0.1uF 16V 10% 2 2 C8 0.1uF 16V 10% 2 0.5amp 120 Ohm 100MHz 1 1 1 1 2 R25 0 0402 STM1815SWX7F FB4 FB2 1 FB1 1 +5V VDDUSBPLL Push-Pull output 3 VDDCORE 1 VDD33A 2 +3.3V U3 DNP A USB Type-A RA Plug C24 4700pF 25V 10% 0402 R22 1 2 10M 1/16W 5% Title LAN9500 / LAN9500A, USB / Ethernet / Power / EEPROM Size GND_USB C Date: 5 4 3 2 Engineer Assembly No. R. W. 6555 Friday, May 21, 2010 1 PCB Rev Schematic Rev B Sheet 1.2 2 of 2