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Philips Semiconductors

UM10014_4

ISP1520 Hi-Speed USB Hub Demo Board

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

User manual

Rev. 04.00 — 11 May 2004

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Layer 4: Bottom Routing

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Summary of Contents for ISP1520

Page 1: ...ev 04 00 11 May 2004 User manual Document information Info Content Keywords ISP1520 hub controller USB universal serial bus Abstract This document describes the ISP1520 hub demo board It also contains the related schematics the PCB layout and the Bill of Material ...

Page 2: ...nformation For additional information please visit http www semiconductors philips com For sales office addresses please send an email to sales addresses www semiconductors philips com Rev Date Description 4 0 May 11 2004 Updated the schematic 3 0 April 14 2004 Updated the following Section 2 Section 4 Section 5 5 Section 6 1 1 Feb 2003 Updated Section 5 5 and Section 6 1 0 Nov 2002 First release ...

Page 3: ... ALL WARRANTIES INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANT ABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT THE ENTIRE RISK ARISING OUT OF THE USE OR PERFORMANCE OF THE PRODUCT AND DOCUMENTATION REMAINS WITH THE RECIPIENT TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW IN NO EVENT SHALL PHILIPS SEMICONDUCTORS OR ITS SUPPLIERS BE LIABLE FOR ANY CONSEQUENTIAL INCID...

Page 4: ...odLink Indicator 7 5 3 Port Power Switch Transistors 7 5 4 Overcurrent Circuit Detection 7 5 5 Power Supply 8 5 6 I2 C Bus Interface 9 6 Schematics 10 7 Installing the Board 17 8 Bill of Materials for the ISP1520 Hub demo board 18 9 References 18 GoodLink and I2 C Bus are trademarks of Koninklijke Philips Electronics N V Microsoft is a registered trademark of Microsoft Corp The names of actual com...

Page 5: ...s a large number of features and options to be evaluated This document describes the ISP1520 hub demo board It also contains the related schematics the PCB layout and the Bill of Material BoM Figure 1 1 ISP1520 Hub demo board 2 ISP1520 Hub demo board Features Complies with Universal Serial Bus Specification Rev 2 0 Supports self powered operation Configurable number of downstream facing ports from...

Page 6: ...Regulated Output 5 1VCC 5 2 5A Warning If you are using the board version 02170 2 make sure that the power plug polarity is at the core and at the outer shield 5 Hub demo board Description 5 1 ISP1520 64 Pin TQFP Package The ISP1520 has the following port configurations One Hi Speed USB and Original USB capable upstream facing port USB0 and Four Hi Speed USB and Original USB capable downstream fac...

Page 7: ... of each downstream facing port through a low ohmic PMOS transistor 5 4 Overcurrent Circuit Detection The integrated analog overcurrent detection circuit of the ISP1520 senses the voltage drop across the power switch When the port draws too much current the voltage drop across the power switch exceeds the trip voltage threshold The overcurrent circuit detects this and automatically switches off th...

Page 8: ...he PCB see schematics As a lower cost alternative there are provisions on the board to use polyswitches to handle overcurrent conditions In this case the port switching transistors are bypassed If this solution is preferred then the overcurrent detection circuit inside the chip must be switched to the digital mode Table 5 3 Mode Selection Using ADOC Default settings 5 5 Power Supply This hub demo ...

Page 9: ...e 5 1 Windows Reporting of the Self Powered Mode 5 6 I 2 C Bus Interface The ISP1520 can use either its USB descriptors from the internal ROM or from an external I2 C busTM EEPROM or microcontroller Mode selection is done through jumpers J1and J2 see Table 5 5 Table 5 5 Mode Selection Using J1 and I2 Default settings SW1 Power Mode S Self powered B Ignore J1 J2 Mode SCL SDA ON ON Internal ROM LOW ...

Page 10: ... Write Protect pin of the I2 C bus EEPROM The Hub Controller and the EEPROM have different I2 C bus device addresses To program this IC on board select the jumper according to Table 5 6 It is recommended that you program the I2 C bus EEPROM before connecting the hub to USB through the USB host For convenience the hub demo board is equipped with a socket for this component allowing easy programming...

Page 11: ...SW4 PSW2 V3 3REG 0 R R31 OC4 330R R9 RED D15 500K R5 VDN 0 1uF C20 J6 J5 V3 3REG NC R105 VIN 2 VOUT 3 VSS 1 XC6206P302 U2 REF1 1 I O1 2 I O2 3 REF2 4 HEADER 3 ESD1 REF1 1 I O1 2 I O2 3 REF2 4 HEADER 3 ESD2 REF1 1 I O1 2 I O2 3 REF2 4 HEADER 3 ESD3 REF1 1 I O1 2 I O2 3 REF2 4 HEADER 3 ESD4 REF1 1 I O1 2 I O2 3 REF2 4 HEADER 3 ESD5 VBUS1 VBUS2 VBUS3 VBUS4 VBUS1 VBUS2 VBUS3 VBUS4 VDN NC R35 J10 NC R3...

Page 12: ...Philips Semiconductors UM10014_4 ISP1520 Hi Speed USB Hub Demo Board Koninklijke Philips Electronics N V 2004 All rights reserved User manual Rev 04 00 11 May 2004 12 of 18 Component Placement ...

Page 13: ...Philips Semiconductors UM10014_4 ISP1520 Hi Speed USB Hub Demo Board Koninklijke Philips Electronics N V 2004 All rights reserved User manual Rev 04 00 11 May 2004 13 of 18 Layer 1 Top Routing ...

Page 14: ...Philips Semiconductors UM10014_4 ISP1520 Hi Speed USB Hub Demo Board Koninklijke Philips Electronics N V 2004 All rights reserved User manual Rev 04 00 11 May 2004 14 of 18 Layer 2 Ground Planes ...

Page 15: ...Philips Semiconductors UM10014_4 ISP1520 Hi Speed USB Hub Demo Board Koninklijke Philips Electronics N V 2004 All rights reserved User manual Rev 04 00 11 May 2004 15 of 18 Layer3 Power Planes ...

Page 16: ...Philips Semiconductors UM10014_4 ISP1520 Hi Speed USB Hub Demo Board Koninklijke Philips Electronics N V 2004 All rights reserved User manual Rev 04 00 11 May 2004 16 of 18 Layer 4 Bottom Routing ...

Page 17: ... to the hub The power supply must meet the requirements specified in Section 4 2 Plug a USB cable in the USB0 port and connect the other end of the cable to the USB host After a while the GoodLink LED D15 will start to blink This indicates that the enumeration process has successfully completed and the hub is now ready for use You can check the driver installation in the Device Manager window To c...

Page 18: ...0603R 10 F C15 REC1 2 Electrolytic capacitor 12 kΏ 1 R11 0603R 12 MHz X1 XTAL7 Crystal 15 kΏ R20 R19 R18 R25 R22 R24 R23 R21 0603R 22 pF C9 C8 0603C Capacitor 22 F C16 REC1 2 Electrolytic capacitor 100 kΏ R14 R15 R37 R5 R35 0603R 100 F C11 C14 C12 C13 REC15 3 Electrolytic capacitor 330 Ώ R9 0603R AT24C01 U15 DIP8 BLM41P600S L1 1206CUST DC_IN PWR_C1 DC JACK2 HEADER 3 ESD1 ESD2 ESD5 ESD4 ESD3 SOT 14...

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