parallel port to i 2 c interface cables cable-smbus-3pinz, cable-smbus-5pinz rev. 0 evaluation boards are only intended for device evaluation and not for production purposes. evaluation boards are supplied as is and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. no license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. analog devices reserves the right to change devices or specifications at any time without notice. trademarks and registered trademarks are the property of their respective owners. evaluation boards are not authorized to be used in life support devices or systems. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ?2008 analog devices, inc. all rights reserved. general description this data sheet provides details of the parallel port to the i 2 c? interface cables. the cable-smbus-3pinz is for use with the adm106x series of programmable power supply sequencers from analog devices, inc. the cable-smbus-5pinz is for use with the adm1175/adm1176/adm1177/adm1178 family of hot swap controllers and adm119x power monitoring devices. the dongles are designed to connect a standard pc or notebook parallel port to a 3-pin or 5-pin header on an evaluation board, system board, or preprogramming module. the dongle can then be used to access and program a supported i 2 c device using the appropriate pc software. note that a suitable power supply must also be provided to the device. both cables provide clock (scl), data (sda), and gnd signals. the cable-smbus-5pinz also provides a conv and an alert signal. the signals are labeled on the crimp housing of the cable. it is advisable to mark pin 1 of the header on the board to ensure correct orientation upon connection, as shown in figure 1. figure 2 shows a schematic for the pcb contained in the parallel port connector for the cable-smbus-3pinz. figure 3 shows a schematic for the pcb contained in the parallel port connector for the cable-smbus-5pinz. for more information on these devices and to download the evaluation software, visit www.analog.com . scl sda gnd 3-pin header on adm106x evaluation board 3-terminal crimp housing cable 25-way parallel port connector to pc parallel port scl sda gnd cable-smbus-3pinz 5-pin header on adm1175/adm1176/adm1177/adm1178 or adm119x evaluation board pin 1 is indicated by a triangle on the crimp housing. 5-terminal crimp housing 25-way parallel port connector to pc parallel port scl sda gnd conv alert conv alert cable scl sda gnd cable-smbus-5pinz 07623-001 figure 1. parallel port to i 2 c interface cabl e connections
cable-smbus-3pinz, cable-smbus-5pinz rev. 0 | page 2 of 4 evaluation board schematics 07623-002 figure 2. cable-smbus-3pinz schematic 07623-003 figure 3. cable-smbus-5pinz schematic
cable-smbus-3pinz, cable-smbus-5pinz rev. 0 | page 3 of 4 ordering information bill of materials table 1. cable-smbus-3pinz qty. reference designator description supplier/part no. 3 r11, r12, r13 2.2 k resistor, r0603 fec 1 9330810 2 r14, r15 1 k resistor, r0603 fec 9330380 1 u1 74ac05 ic, so14nb fec 1103063 1 fec = farnell electronics. table 2. cable-smbus-5pinz qty. reference designator description supplier/part no. 1 c1 47 nf capacitor, 0603 fec 1 431965 2 c2, c3 4.7 nf capacitor, 0603 fec 722212 6 j1 to j6 test pad, testpoint not inserted 2 r1, r10 1.8 k resistor, 0603 fec 9330712 2 r2, r5 resistor, 0603 not inserted 3 r3, r7, r9 2.2 k resistor, 0603 fec 9330810 3 r4, r6, r11 1 k resistor, 0603 fec 9330380 1 r8 100 k resistor, 0603 fec 9330402 6 sl1 to sl6 solder pad, solder_link not inserted 1 u1 74ac05 ic, so14nb fec 1103063 1 fec = farnell electronics. ordering guide model description cable-smbus-3pinz 1 parallel port to 3-pin i 2 c interface cable cable-smbus-5pinz 1 parallel port to 5-pin i 2 c interface cable 1 z = rohs compliant part. esd caution
cable-smbus-3pinz, cable-smbus-5pinz rev. 0 | page 4 of 4 notes ?2008 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. eb07623-0-7/08(0)
|
