5 4 3 2 1 5V D D LED EEPROM RESET AVCC33 FIBER MODULE . . DM9621 DM9621A C VCC33 C DM9620 DM9620A XFMR RJ45 25MHz USB CONN B B A A DAVICOM Semiconductor,Inc. Title USB2.0 TO ETHERNET 5 4 3 Size A4 Document Number Date: Tuesday, September 11, 2012 2 Rev 1.31 BLOCK Sheet 1 1 of 4 5 4 3 2 1 DEBUGGING USE ONLY R8 RST# 25MHZ/49US XTAL 100K D3 0R LED LED D5 R151 R152 R153 1 2 3 4 LED 33 33 33 VCC33 SMI_CK SMI_D USB_LED R130 4.7K TXD0 R22 4.7K TXD1 R23 4.7K/NOPOP TXEN R26 4.7K/NOPOP WOL R192 4.7K/NOPOP DGND HEADER_4 330R C2 USB_LED RESET DGND 1UF DGND R9 0R FDX_LED PLACE 33 OHM RESISTORS CLOSE TO IC USB1_LED UGND 5 C7 0.1UF D14 MLV USB CON UGND RREF DM DP VCC33_PLL C DGND DGND UGND VCC18 VCC33 U1 EECS EECK EEDIO R5 10K 1 2 3 4 CS SK DI DO 93C46 VCC33 8 7 6 5 VCC NC NC GND VCC18 VCC33 X2 X1 37 AGND 38 39 40 41 42 AGND 43 44 45 46 47 48 49 C1 0.1UF VCC3A GND RREF DM DP VCC33_PLL GND_PLL VCCOUT VCC3 X2 X1 GND GND AGND FIBERSD VCC3 CLK50M EECS EECK EEDIO MDIO MDC RXDV GND RXD0 RXD1 TXD0 TX+ TX- AGND R34 6.98K/1% DGND RXD0 RXD1 TXD0 RXC EECS EECK EEDIO MDIO MDC RXER RXDV VCC33 RXD0 RXD1 RXD2 RXD3 TXC DGND U3 DM9620/9620A LQFP64 C BGR C16 TXEN TXD1 BGR VCC33 RXC EECS EECK EEDIO MDIO MDC RXDV 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 DGND DGND RX+ RX- 24 23 22 21 20 19 18 17 16 15 14 13 U5 DM9621/9621A QFN48 DIP8 DGND AGND X2 X1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AVCC33 75K VCC33_PLL VCC3 RXC EECS EECK EEDIO MDIO MDC RXER RXDV GND RXD0 RXD1 RXD2 RXD3 TXC GND TXD1 TXD0 UGND R2 C6 4.7UF DM DP X1_12M X2_12M AVCC3 GND RREF DM DP VCC33_PLL GNDPLL VCC18 VCC3 X2 X1 GND SD RXGND RX+ RX- USB_IN GND D+ DVCC AGND RREF 36 35 34 33 32 31 30 29 28 27 26 25 DP DM 6 X2_12M X1_12M RSTB WOL VBUS_IN TEST2 TEST1 LINK_LED SPD_LED USB_LED SMI_CK SMI_D PTC 12K J2 4 3 2 1 BGGND BGRES RXVDDOUT RX+ RXRXGND TXGND TX+ TXTXVDDOUT TXE TXD1 USB5V R1 47K L1 D16 TVS R28 AGND 1 2 3 4 5 6 7 8 9 10 11 12 D15 TVS MLV AVCC33 TXEN TXD3 TXD2 D17 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 DGND RST# WOL USB_IN TEST2 TEST1 LINK_LED SPD_LED USB1_LED SMI_CK SMI_D AGND TP1 RREF 4.7K TX+ TX- R133 RSTB WOL GND VUSB_IN TEST2 VCC3 TEST1 LNK_LED SPD_LED FDX_LED USB_LED GND SMI_CK SMI_D COL CRS DGND UGND USB_IN 5V-->3V D If use DM9620 mount R10(R9 not use) If use DM9621 mount R9(R10 not use) 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 C10 15PF 1 D C9 15PF TP39 WOL VCC33 TEST1 A SW1 R10 SMI_CK SMI_D COL CRS D1 1N4148 LED USB_LED FDX_LED SPD_LED LINK_LED RST# WOL 1 C Y3 J1 8 7 D2 6 5 D4 TEST1 LINK_LED SPD_LED FDX_LED USB_LED RN1 1 2 3 4 USB_IN TEST2 VCC33 BGGND BGRES AVCC18 RX+ RXRXGND TXGND TX+ TXAVCC18 TXE TXD3 TXD2 VCC33 TXD1 TXD0 X1 X2 VCC33 TXD0 Ethernet RX packet header format 1= DM9620 mode, 4 header bytes include flag byte TXD1 1: EEPROM force to 93C46 type 0: EEPROM type auto-detection TXEN 1: USB_LED as SMI interrupt 47UF/16V VCC33 C19 0.1UF DGND AVCC18 R191 0/NOPOP AVCC18 VCC18 5V DO NOT USE IF TP CONNECTION IS USED FIBER MODULE B FIBER INTERFACE NOT APPLICABLE FOR DM9621 C12 R171 R174 127/1% 127/1% FIBER_RX+ FIBER_RX- R178 R179 R175 R176 127/1% 69/1% R177 69/1% JP2 FIBERSD FIBER_TXFIBER_TX+ R180 R181 F_TXF_TX+ 0R 0R R184 83/1% A DC TERMINATION R178 = 0 OHM R179 = 0 OHM R180 = 0 OHM R181 = 0 OHM R37 NOPOP R38 NOPOP R49 NOPOP R50 NOPOP R189 NOPOP R190 NOPOP C12 NOPOP C49 NOPOP AC TERMINATION R178 = 0.1UF R179 = 0.1UF R180 = 0.1UF R181 = 0.1UF R37 = 49.9 OHM R38 = 49.9 OHM R49 = 49.9 OHM R50 = 49.9 OHM R189 = 0 OHM R190 = 0 OHM C12 = 0.1 UF C49 = 0.1 UF R185 83/1% R186 83/1% R187 182/1% R188 182/1% 1 2 3 4 5 6 7 8 9 0.1UF B PLACE 33 OHM RESISTORS CLOSE TO IC R37 49.9/1% R38 49.9/1% D10 TVS AVCC18 Fiber_3.3V_MODULE C92 0.1uF DGND D11 D12 TVS TVS TX+ FIBER_TX+ RX- FIBER_RX- FIBER_RX+ RX+ R49 49.9/1% R50 49.9/1% JP1 1 TD+/RD+ TX+/RX+ 16 2 NC NC 15 3 TD-/RD- TX-/RX- 14 4 5 NC MCT 13 CT NC 6 RD+/TD+ 12 RX+/TX+ 7 NC 11 NC 10 8 RD-/TD- RX-/TX- ETHERNET XFMR + C35 47UF/16V R190 0/NOPOP C36 0.1UF DGND 1 2 3 4 5 6 7 8 11 12 R46 75R R47 75R R154 R155 R156 R157 R158 R159 R160 R161 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP CRS COL TXD3 TXD2 TXD1 TXD0 TXEN TXC R162 R163 R164 R165 R166 R167 R168 R169 R170 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP 33/NOPOP RXER RXC RXDV RXD0 RXD1 RXD2 RXD3 MDC MDIO GND_EARTH 2 C48 0.1UF 0805 DGND 3 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 MII CON - BOARD EDGE C37 1 0.01UF/2KV R4 1M 0805 RJ-45 R48 75R 9 C49 0.1UF 4 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 D13 TVS T1 FIBER_TX- TX- DGND 5 GND_EARTH R189 AND R190 NOT TO BE USED IN TP MODE R189 0/NOPOP CON2 F_RX+ F_RX- 0R 0R R7 0R/NOPOP DO NOT USE IF FIBER CONNECTION IS USED DGND AVCC18 3V3_FIBER CLEARANCE AREA DO NOT PLACE ANY OTHER TRACES AND PLANES UNDER THIS AREA GND_EARTH 2 A DAVICOM Semiconductor,Inc. Title USB2.0 TO ETHERNET Size A3 Document Number DM9620 MAIN CHIP Date: Tuesday, September 11, 2012 Rev 1.31 Sheet 1 2 of 4 5 4 3 2 1 USB5V L2 5V JUMPER U4 1 3 C52 IN AP1117-3.3V SOT223 OUT 2 OUT + RA1 330 4 L3 INDUCTOR PVCC33 C53 100UF/10V C51 0.1UF + C54 DGND 0.1UF L4 AVCC33 INDUCTOR TP35 AVCC33 1 DGND DGND ADJUSTABLE LDO CALCULATION Vout = Vref x ( 1 + RA2 / RA1) Vref = 1.25 V For fixed Vout LDO, RA1 = open, RA2 = 0 ohm D 100UF/10V 1 C55 0.1UF 100UF/16V 2 3 C50 1 J13 DC-JACK GND D TP34 VCC33 1 2 J12 VCC33 INDUCTOR RA2 549 C57 C56 0.1UF 100UF/10V DGND DGND VCC33_PLL L5 C INDUCTOR TP36 VCC33_PLL 1 C59 C C58 0.1UF 100U/10V VCC33 DGND C39 C40 C41 C42 C43 C44 3V3_FIBER 10UF 0.1UF 10UF 0.1UF 10UF 0.1UF L12 INDUCTOR C94 C95 DGND 100UF/10V AVCC33 B VCC33_PLL VCC33 0.1UF VCC18 B C26 C27 C30 C31 C89 C90 C88 C87 C5 10UF 0.1UF 10UF 0.1UF 10UF 0.1UF 10UF 0.1UF 100UF DGND AGND R150 1M UGND C23 0.1UF AGND L10 INDUCTOR L11 INDUCTOR DGND AGND A A DAVICOM Semiconductor,Inc. Title USB2.0 TO ETHERNET 5 4 3 Size A4 Document Number Date: Tuesday, September 11, 2012 2 Rev 1.31 POWER Sheet 3 1 of 4 5 VER 4 DATE 3 ENGINEER 2 1 NOTE 1.0 04/28/2009 MARCO FAN NEW CIRCUIT DM9620+DM9621 1.01 04/28/2009 WILLIE NIOU 6.8K to 6.98K UPDATE 1.1 10/22/2010 MARCO FAN 1. 2. 3. 4. 5. 1.2 03/11/2011 WILLIE NIOU 1. ADD FIBER CIRCIT 2. ADD FIBER MODULE VOLTAGE FILTER D D C USB5V_IN: C6 DIP 100UF--->SMD 4.7UF RESET RC: SMD 10K --->1K, DIP 10UF--->SMD 4.7UF AVCC18:C16 DIP 100UF--->47UF DM9620 PIN 1,6,7,62,64 CONN DGND--->AGND USB CONN PART OF 5V--->4V, DGND--->AGND C 1.3 03/16/2012 WILLIE NIOU 1. DO NOT USE MDIX WHEN IN FIBER MODE PHY REG[0X00]=0X2100 PHY REG[0X10]=0X4014 PHY REG[0X14]=0X0010 2. WOL ADD PULL-UP SELECTION FOR DM9621A/20A 1.31 09/11/2012 WILLIE NIOU R8 CHANGE FROM 4.7K TO 100K B B A A DAVICOM Semiconductor,Inc. Title USB2.0 TO ETHERNET 5 4 3 Size A4 Document Number Date: Tuesday, September 11, 2012 2 Rev 1.31 HISTORY Sheet 4 1 of 4