AX88178_RTL82X1CL_RGMII_REFEREN

5 5 4 4 3 3 2 2 1 1 D D C C B B A A Title Size Document Number Rev Date: Sheet of B 1 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of B 1 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of B 1 5Tuesday, February 02, 2010 AX88178 RTL8211CL/RTL8251CL RGMII GigaPHY Reference Schematic Index Page3: Realtek RTL8211CL/RTL8251CL GigaPHY (25MHz Crystal, RJ-45 Transformer) Page1: Schematic Index (This Page) Page 5: Revision History Page4: Power Circuit Page2: AX88178 (12MHz Crystal, EEPROM, USB Connector, Reset Circuit) ASIX ELECTRONIC CORPORATION Schematic Index AX88178_RTL8211CL_RTL8251CL V1.00 Note: 1.Please refer to AX88178 USB-to-Gigabit Ethernet Application Design Note for more AX88178 PCB layout design notes. 2.Please contact ASIX Support (support@asix.com.tw) to get AX88178 EEPROM User Guide for more details about AX88178 EEPROM setting. 3.Please deliver us your AX88178 schematic and your AX88178 EEPROM data file for further review. 4.Please contact Realtek's support guys to get the latest RTL8211CL/RTL8251CL reference schematic and Layout Guide and further suggestions before making your PCB board. 5 5 4 4 3 3 2 2 1 1 D D C C B B A A RPU DMRS EECK EECS EEDI EEDO XIN12M XOUT12M GND RESET# MAC_VDD33A RX_CLK RXD3 RXD2 RXD1 RXD0 RX_DV TXD3_T TXD2_T TXD1_T TX_EN_T MDIO TXD1 TXD0 TX_EN USBACT USBSPD USB_GND C H A S S I S G N D DM DP USB_5V XOUT12MXIN12M EEDO EECS EEDI EECK MDC_T MDC GND MAC_VDD33A RREF USBSPD DB MAC_VDD25 DB USB_5V VBUS DPRS DM DP PHY125MO FORCEF# GND USBACT FORCEF# RGMII_EN GPIO1 MAC_VDD33 INT_REG RGMII_EN GND MAC_VDD33 MAC_VDD33 RESET# TXD2 TXD3 GPIO2PHY_RST# INT_REG GND MAC_VDD33 MAC_VDD33 GPIO2 GND RX_CLK RXD3 RXD2 RXD1 RXD0 RX_DV MDIO TXD1 TXD0 TX_EN MDC TXC TXD2 TXD3 PHY125MO PHY_RST# USB_GND MAC_VDD33 GND USB_5V TXD0_T PHY_Pwr TXCTXC_T PHY_Pwr TXC RXD0 RXD1 RXD2 RX_CLK RX_DV TXD1 TXD0 TX_EN MDC MDIO RXD3 TXD3 TXD2 PHY125MO PHY_Pwr PHY_RST# USB_GND USB_5V MAC_VDD33 GND MAC_VDD33 MAC_VDD33 MAC_VDD33A MAC_VDD33 MAC_VDD25 MAC_VDD33 MAC_VDD33AMAC_VDD33 MAC_VDD25 MAC_VDD33 MAC_VDD33A USB_5V MAC_VDD25 Title Size Document Number Rev Date: Sheet of C 2 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 2 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 2 5Tuesday, February 02, 2010 USB Full Speed LED USB High Speed & TX Transfer LED Force USB Full Speed mode(Pull down) RGMII mode enable (GMII mode: R26 NC) Pin21 V25 : Internal regulator 2.5V power output. Pin22 VDDAH : Internal regulator 3.3V power input. 11 ohm@100MHz ASIX ELECTRONIC CORPORATION AX88178 AX88178_RTL8211CL_RTL8251CL V1.00 12MHz +- 30ppm Crystal for USB interface *Note2-1 USB Connector 93C56 or 93C66 EEPROM *Note2-1: The capacitor of 12MHz crystal clock MUST be 12pF. The following is the reason: The AX88178 expects the ideal frequency range for the 12Mhz clock; this will give most margins for the internal PLL to generate a good 480Mhz clock, which is required by USB High Speed mode. That range is still within the USB 2.0 spec, which requires 480Mhz +/-500ppm accuracy. Our extensive testing in the past showed higher capacitor value could put the 12Mhz out of above range, which sometimes can cause some problem during USB High Speed mode enumeration. For example, during the 100 times of repeatedly plug-and-unplug test, there may be 1 time that AX88178 may not be initialized properly. This is related to the bit error rate on USB bus in High Speed mode, which is higher if 12Mhz is out of above range. Therefore, we strongly suggest customers to use 12pF capacitor on 12MHz clock circuit for most stable operation of the chip. *Note2-4: AX88178 on-chip 3.3V to 2.5V regulator is a low dropout regulator (LDO), which requires some large external compensating capacitors on its input (pin #22) and output (pin #21) pins. The C8, C9, C10 and C11 capacitors are the compensating capacitors for the on-chip regulator. Power and by-pass capacitors Enable/Disable On-chip 3.3V to 2.5V Regulator (Default: enabled regulator) The DB pin should be pulled up for normal operation C5,C6 : Must be 12pF AX88178 Reset Circuit /3/ /3//3//3//3/ /3/ /3/ /3//3//3//3/ /3/ /3//3/ /3/ /4//3/ /4/ /4/ /3//4/ /4/ *Note2-4 *Note2-2 *Note2-3 *Note2-5 *Note2-2: The C1 12pF capacitor between the DP and DM signals is optional to filter the common-mode noise and should be placed as close as pin #31 and #32. *Note2-3: The GPIO1 and GPIO2 signals are used to control GigaPHY power and reset signals for passing the USB-IF compliant test. *Note2-5: All power pins should be implemented with a by-pass capacitor, and the by-pass capacitor should be as close as the power pin. Reserved for EMI close to AX88178 C23 0.1uF C23 0.1uF R21 22R21 22 C5 12pF C5 12pF C3 0.1uF C3 0.1uF C14 0.1uF C14 0.1uF R9 47KR9 47K C28 0.1uF C28 0.1uF R28 47KR28 47K C24 0.1uF C24 0.1uF C27 0.1uF C27 0.1uF C18 0.1uF C18 0.1uF C19 0.1uF C19 0.1uF L1 SBK160808T-110Y-S L1 SBK160808T-110Y-S R13 22R13 22 + C8 4.7uF/10V + C8 4.7uF/10V U3 93C56 U3 93C56 CS1 SK2 DI3 DO4 GND 5 NC 6 NC 7 VCC 8 R2 39K R2 39K + C9 4.7uF/10V + C9 4.7uF/10V R20 1MR20 1M C20 0.1uF C20 0.1uF R26 15KR26 15K C6 12pF C6 12pF C26 0.1uF C26 0.1uF D1 LED_OD1 LED_O R7 1.5KR7 1.5K + C13 4.7uF/10V + C13 4.7uF/10V C21 0.1uF C21 0.1uF R22 330R22 330 C22 0.1uF C22 0.1uF R14 22R14 22 R12 100R12 100 R8 12.1K 1%R8 12.1K 1% + C12 4.7uF/10V + C12 4.7uF/10V R23 47KR23 47K C25 0.1uF C25 0.1uF C11 0.1uF C11 0.1uF R19 330R19 330 C10 0.1uF C10 0.1uF R10 22R10 22 U1 AX88178 U1 AX88178 DP32 DM31 DPRS36 DMRS35 VBUS10 RPU34 XIN12M26 XOUT12M27 RREF30 RGMII_EN/NC103 DB65 XIN125M101 RESET_N12 EXTWAKEUP_N11 GPIO21 GPIO12 GPIO03 PHYRST_N122 FORCEFS_N15 LED125 USB_SPEED_LED126 TESTSPEEDUP13 HS_TEST_MODE42 SCAN_TEST43 SCAN_ENABLE44 CLK60EXT45 CLKSEL46 RX_CLK 104 RXD7 114 RXD6 113 RXD5 112 RXD4 111 RXD3 110 RXD2 109 RXD1 108 RXD0 107 RX_DV 105 RX_ER 106 COL 116 CRS 115 TX_CLK 102 GTX_CLK 91 TXC 90 TXD7 76 TXD6 77 TXD5 78 TXD4 79 TXD3 82 TXD2 83 TXD1 84 TXD0 85 TX_EN 89 TX_ER 88 MDIO 120 MDC 121 MDINT 117 N C 7 3 N C 7 2 N C 7 1 N C 7 0 N C 4 8 N C 4 7 N C 1 4 EECK4 EECS5 EEDI6 EEDO9 VDD3128 VDD397 VDD341 VDD319 VDD38 AVDD339 AVDD337 AVDD328 VDDAH22 GNDAH23 V2521 INT_REGULATOR_EN20 VDD2 80 VDD2 86 VDD2 123 N C 5 9 N C 5 8 N C 5 2 N C 5 1 G N D 1 2 7 G N D 1 2 4 G N D 1 1 9 G N D 1 0 0 G N D 9 8 G N D 8 7 G N D 8 1 G N D 7 5 G N D 4 0 G N D 2 5 G N D 1 8 G N D 1 7 G N D 7 A G N D 6 9 A G N D 6 7 A G N D 6 3 A G N D 6 0 A G N D 5 5 A G N D 5 4 A G N D 5 0 A G N D 3 8 A G N D 3 3 A G N D 2 9 VDDK 16 VDDK 24 VDDK 74 VDDK 99 VDDK 118 AVDDK 49 AVDDK 53 AVDDK 57 AVDDK 64 AVDDK 66 AVDDK 68 N C 6 2 N C 6 1 N C 5 6 N C 9 2 N C 9 3 N C 9 4 N C 9 5 N C 9 6 R18 22R18 22 D2 LED_GD2 LED_G R24 NC,4.7KR24 NC,4.7K C1 NC,12pF C1 NC,12pF R27 47KR27 47K S1 SW SPST S1 SW SPST R6 4.7KR6 4.7K R15 22R15 22 C4 NC,10pF C4 NC,10pF U2 XC61CN2802MR U2 XC61CN2802MR VIN3 VOUT 1 VSS 2 C7 0.1uF C7 0.1uF R4 47K R4 47K C17 0.1uF C17 0.1uF C30 0.1uF C30 0.1uF R25 4.7KR25 4.7K C16 0.1uF C16 0.1uF 4 1 23 J1 USB-CON 4 1 23 J1 USB-CON GND 4 VDD5 1 D+ 3 D- 2 S 6 S 5 R1 47K R1 47K Y1 CRYSTAL 12MHzY1 CRYSTAL 12MHz C15 0.1uF C15 0.1uF C2 0.1uF C2 0.1uF C29 0.1uF C29 0.1uF R11 100R11 100 R16 22R16 22 R3 39.0R3 39.0 R17 22R17 22 R5 39.0 R5 39.0 5 5 4 4 3 3 2 2 1 1 D D C C B B A A RX_CTL RX_CLK XTAL2 TXD3 TXD2 TXD1 TXD0 TX_CTL RXD3 RXD2 RXD1 RXD0 MDIO MDC TXC CLK125 PHY_RST# RXD1/TXDLY RXD2/AN0 RXD3/AN1 PHY_VDD33 LED1_AD1 LED2_RXDLY LED0_AD0 PHY_VDD33 DA+ DA- C H A S S I S G N D DB+ DB- DC+ DC- DD+ DD- C H A S S I S G N D MDI2- MDI3+ MDI1+ MDI3- MDI2+ MDI0- MDI1- MDI0+ MDI2+ MDI3+ PHY_AVDD10 PHY_AVDD10 MDI3- MDI0- PHY_AVDD33 MDI1- MDI2- MDI0+ MDI1+ T X D 0 P H Y _ V D D 3 3 R X _ C T L / R M I I T X D 1 T X C P H Y _ V D D 3 3 R X D 3 / A N 1 X T A L 1 R S E T P H Y _ A V D D 3 3 X T A L 2 V D D R E G L E D 2 _ R X D L Y R E G O U T _ V 1 0 V D D R E G E N S W R E G A V D D 1 0 / P W O U T 1 0 D PHY_VDD10 CLK125 MDC PHYRSTB LED0_AD0 LED1_AD1 TX_CTL TXD3 TXD2 PHY_VDD10 P H Y _ V D D 3 3 AVDD10/PWOUT10D ENSWREG PHY_VDD3 PHY_AVDD3 PHY_VDD10 PHY_AVDD10 REGOUT_V10 PHYRSTB P H Y _ V D D 3 3 PHY_RST# C H A S S I S G N D C H A S S I S G N D RX_CLK R X D 1 / T X D L Y R X D 2 / A N 0 RXD3 RXD2 RXD1 RXD0 RX_CTL PHY_VDD33 LED0_AD0 MDIO LED1_AD1 PHY_AVDD33 PHY_VDD33 PHY_AVDD10 GND MDI2+ MDI2- MDI0+ MDI1+ MDI1- VDD33 MDI3- MDI3+ MDI0- VDD33 VDD33 G N D GND G N D XTAL1 GND VDDREG RX_CLK RXD3 RXD2 TXC RXD1 RXD0 RX_DV TXD2 TXD1 TX_EN TXD3 TXD0 MDC MDIO PHY125MO PHY_RST# PHY_VDD33 PHY_AVDD33 PHY_VDD10 PHY_AVDD10 REGOUT_V10 VDD33 GND Title Size Document Number Rev Date: Sheet of C 3 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 3 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 3 5Tuesday, February 02, 2010 /2/ /2//2/ /2/ /2/ /2/ /2/ /2//2/ /2/ /2/ /2/ /2//2/ /2/ /2/ AN0 Pull High TX/RX Activity LED Link LED (Any speed) /4/ /4/ /4/ /4/ /4/ C50, C51 Reserved for EMI close to LAN connector ASIX ELECTRONIC CORPORATION RTL8211CL_RTL8251CL GigaPHY AX88178_RTL8211CL_RTL8251CL V1.00 U6, U7 Reserved for cable discharge (ESD protection reference circuit) /4/ 1.Enable On-chip Switch Regulator: Connect ENSWREG to PHY_VDD33 (i.e. Mount R31 and unmount R34) 2.Disable On-chip Switch Regulator: (Default) Connect ENSWREG to GND (i.e. Mount R34 and unmount R31) Enable all Nway capabilities Delay TXCLK/RXCLK 2ns PHY Address=01 AN1 Pull High TXDLK Pull High RXDLK Pull High AD1 Pull Low AD0 Pull High /4//2/ Hardware Configuration25MHz +- 50ppm Crystal for Ethernet interface PHY Reset Circuit Gigabit Magetic + RJ45 Connector ESD Protection Circuit (Optional) Reserved for EMI close to PHY The bypass capacitors (C31,C32) should be as close as VDDREG pins The Ethernet LED circuit is a reference circuit while the PHY Address was set to 01h. (i.e. LED0_AD0 was pulled high and LED1_AD1 was pulled low) Please check Realtek's GigaPHY reference circuit for more details if necessary. Ethernet LED Circuit Note: 1.The RTL8211CL/RTL8251CL GigaPHY reference circuits are for customers' reference purpose. Please contact Realtek's support guys to get the latest RTL8211CL/RTL8251CL reference schematic and Layout Guide before making your PCB board. C31 must be a ceramic (X5R) capacitor C32 is recommended to be ceramic capacitor (Unmount R30, C31, C32 while disabling on-chip regulator) C33 should be as close as AVDD10 pin The 3.3V power input VDDREG trace should be wider than 40 mils (Keep floating while disabling on-chip switching regulator) The 1.05V power output REG_OUT trace should be wider than 60 mils (Keep floating while disabling on-chip switching regulator) 2.Please exactly follow up Realtek's RTL8211CL/RTL8251CL Layout Guide to layout RTL8211CL/RTL8251CL 3.3V to 1.05V On-chip Switching Regulator and Ethernet magnetic circuits; otherwise,the RTL8211CL/RTL8251CL might not work normally. Please refer to Realtek's layout guide for more details. On-Chip Switching Regulator Circuit Controlled by AX88178 GPIO2 Reference Transformer Part No. list YL18-3002S YuTai Electronics Co.,LTD TEL:86-574-63620701,63621610 http;//www.yutai-elec.com EMAIL：nico_yu@yeah.net C34 27pF C34 27pF R36 4.7KR36 4.7K R52 22R52 22 1 2 3 5 4 6 U6 1 2 3 5 4 6 U6 1 2 3 4 5 6 U4 YL18-3002S U4 YL18-3002S TCT1 1 TD1+ 2 TD1- 3 TCT2 4 TD2+ 5 TD2- 6 TCT3 7 TD3+ 8 TD3- 9 TCT4 10 TD4+ 11 TD4- 12MX4-13 MX4+14 MCT415 MX3-16 MX3+17 MCT318 MX2-19 MX2+20 MCT221 MX1-22 MX1+23 MCT124 R29 4.7KR29 4.7K C38 0.1uFC38 0.1uF R 4 3 7 5 R 4 3 7 5 D4 LED1 D4 LED1 C36 0.01uF C36 0.01uF R35 4.7KR35 4.7K CON1 RJ45S1X1 CON1 RJ45S1X1 DA+ 11 DA- 12 DB+ 13 DB- 16 DC+ 14 DC- 15 DD+ 17 DD- 18 FGND2 FGND1 GH14 GH23 C51 100pF C51 100pF C35 27pF C35 27pF R49 22R49 22 R 4 2 7 5 R 4 2 7 5 C44 1000pF/2KV-X-SA C44 1000pF/2KV-X-SAC45 1000pF/2KV-X-SA C45 1000pF/2KV-X-SA R32 4.7KR32 4.7K R30 NC,0 R30 NC,0 R45 4.7K R45 4.7K C39 0.1uFC39 0.1uF C40 0.01uF C40 0.01uF R46 0R46 0 R40 1.5KR40 1.5K C46 0.1uF C46 0.1uF Y2 CRYSTAL 25MHz Y2 CRYSTAL 25MHz R 4 1 7 5 R 4 1 7 5 1 2 3 5 4 6 U7 1 2 3 5 4 6 U7 1 2 3 4 5 6 R51 22R51 22 C33 0.1uF C33 0.1uF R54 330RR54 330R RTL8211CL\ RTL8251CL U5 RTL8211CL\ RTL8251CL U5 MDI[0]+1 MDI[0]-2 FB103 MDI[1]+4 MDI[1]-5 AVDD336 GND7 MDI[2]+8 MDI[2]-9 AVDD1010 MDI[3]+11 MDI[3]-12 R X C T L 1 3 R X D 0 1 4 D V D D 3 3 1 5 R X D 1 / T X D L Y 1 6 R X D 2 / A N 0 1 7 R X D 3 / A N 1 1 8 R X C 1 9 G N D 2 0 D V D D 3 3 2 1 T X C 2 2 T X D 0 2 3 T X D 1 2 4 TXD2 25 TXD3 26 TXCTL 27 DVDD10 28 PHYRSTB 29 MDC 30 MDIO 31 CLK125 32 GND 33 LED0/PHYAD0 34 LED1/PHYAD1 35 DVDD10 36 D V D D 3 3 3 7 L E D 2 / I N T B / R X D L Y 3 8 E N S W R E G 3 9 A V D D 1 0 4 0 A V D D 3 3 4 1 C K X T A L 1 4 2 V D D R E G 4 5 R S E T 4 6 G N D 4 7 R E G _ O U T 4 8 C K X T A L 2 4 3 V D D R E G 4 4 R34 0 R34 0 D3 LED0 D3 LED0 R 4 4 7 5 R 4 4 7 5 C50 100pF C50 100pF R31 NC,0 R31 NC,0 R39 2.49K 1%R39 2.49K 1% C42 0.01uFC42 0.01uF R37 4.7KR37 4.7K C47 NC,10pF C47 NC,10pF + C31 NC,22uF + C31 NC,22uF R48 22R48 22 R53 330RR53 330R C32 NC,0.1uF C32 NC,0.1uF R47 22R47 22 C37 0.01uF C37 0.01uF C48 0.1uF C48 0.1uF C43 0.01uFC43 0.01uF C41 0.01uF C41 0.01uF R38 4.7KR38 4.7K R50 22R50 22 R33 0 R33 0 C49 0.1uF C49 0.1uF 5 5 4 4 3 3 2 2 1 1 D D C C B B A A MAC_VDD33 PHY_VDD33 PHY_VDD10 USB_GND USB_5V USB_GND 5V USB_5V 5V PHY_Pwr PHY_Pwr REGOUT_V10 PHY_AVDD10 REGOUT_V10 VDD33 PHY_AVDD33 PHY_Pwr 5V GND MAC_VDD33 PHY_VDD33 PHY_VDD10 GND USB_5V USB_GND PHY_Pwr PHY_AVDD10 REGOUT_V10 VDD33 PHY_AVDD33 MAC_VDD33 USB_5V PHY_VDD33 PHY_AVDD33 PHY_AVDD10 PHY_VDD10 VDD33 Title Size Document Number Rev Date: Sheet of C 4 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 4 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of C 4 5Tuesday, February 02, 2010 3.3V VCC Power for AX88178: Max. 3.3V/200mA/660mW /2/ /3/ /3/ /2//3/ /2/ /2/ /2/ 11 ohm@100MHz 11 ohm@100MHz /3/ /3/ ASIX ELECTRONIC CORPORATION Power AX88178_RTL8211CL_RTL8251CL V1.00 /3/ /3/ USB Connector 5V VCC Input: 5V/500mA/2500mW 5V to 3.3V Linear Regulator with 300mA output current *Note4-1: The RTL8211CL/RTL8251CL GigaPHY power circuits and power consumption information are for customers' reference purpose. Please contact Realtek's support guys to get more detailed information of RTL8211CL/RTL8251CL GigaPHY related power circuits and power consumption information. 5V to 3.3V Switching Regulator with 600mA output current *Note4-1RTL8211CL/RTL8251CL Power Circuit AX88178 Power Circuit The bypass capacitors (C75,C76) should be as close as L6 or L5 L5 (4.7uH) must be kept within 200 mils of REG_OUT pin C75 must be a ceramic (X5R) capacitor C76 is recommended to be ceramic capacitor while using RTL8211CL/RTL8251CL on-chip switching regulator On-Chip Switching Regulator Circuit 5V to 1.05V Switching Regulator with 600mA output current Controlled by AX88178 GPIO1 Controlled by AX88178 GPIO1 The bypass capacitors (C64,C66) should be as close as L4 C63 0.1uF C63 0.1uF L2 SBK160808T-110Y-S L2 SBK160808T-110Y-S R57 0 R57 0 + C75 22uF + C75 22uF + C55 4.7uF/10V + C55 4.7uF/10V U10 RT8008PB U10 RT8008PB VIN4 EN1 LX 3 FB 5 G N D 2 L3 SBK160808T-110Y-S L3 SBK160808T-110Y-S + C64 22uF + C64 22uFC67 0.1uF C67 0.1uF L6 2.2uH L6 2.2uH C66 0.1uF C66 0.1uF C72 0.1uF C72 0.1uF C59 0.1uF C59 0.1uF + C53 4.7uF/10V + C53 4.7uF/10V C60 15pF C60 15pF C58 0.1uF C58 0.1uF C73 0.1uF C73 0.1uF C79 0.1uF C79 0.1uF C78 0.1uF C78 0.1uF C76 0.1uF C76 0.1uF + C54 10uF/10V + C54 10uF/10V C80 0.1uF C80 0.1uF R60 240K 1% R60 240K 1% C56 0.1uF C56 0.1uF C74 0.1uF C74 0.1uF R56 43K 1% R56 43K 1% + C65 4.7uF/10V + C65 4.7uF/10V C81 0.1uF C81 0.1uF R55 200K 1% R55 200K 1% L5 NC,4.7uH-700mA L5 NC,4.7uH-700mA R58 1.5K 1% R58 1.5K 1% C68 0.1uF C68 0.1uF C71 15pF C71 15pF C57 0.1uF C57 0.1uF U9 RT8008PB U9 RT8008PB VIN4 EN1 LX 3 FB 5 G N D 2 R61 0 R61 0 + C52 4.7uF/10V + C52 4.7uF/10V C69 0.1uF C69 0.1uF + C77 4.7uF/10V + C77 4.7uF/10V C61 0.1uF C61 0.1uF L4 2.2uH L4 2.2uH C70 0.1uF C70 0.1uF R62 27K 1% R62 27K 1% U8 RT9161A-3.3V U8 RT9161A-3.3V G N D 1 V I N 2 V O U T 3 C62 0.1uF C62 0.1uF R59 200K 1% R59 200K 1% 5 5 4 4 3 3 2 2 1 1 D D C C B B A A Title Size Document Number Rev Date: Sheet of B 5 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of B 5 5Tuesday, February 02, 2010 Title Size Document Number Rev Date: Sheet of B 5 5Tuesday, February 02, 2010 ASIX ELECTRONIC CORPORATION Revision Histroy AX88178_RTL8211CL_RTL8251CL V1.00 Revision History Revision Date Comment V1.00 2009/08/11 Initial release.