1 of 11 rev: 060903 general description the DS3154DK is an easy-to-use evaluation kit for the ds3154 quad ds3/e3/sts-1 liu. a surface- mounted ds3154 and careful layout of the analog signal traces provide maximum signal integrity to demonstrate the transmit and receive capabilities of the ds3154. on-board dallas 8051-compatible microcontroller and included software give point-and- click access to configuration and status registers from a personal computer. leds on the board indicate interrupt, loss-of-signal, transmit driver monitor, and prbs sync status for all four ports. the board provides bnc connectors for the line-side transmit and receive differential pairs and a 50-pin connector for framer interface signals. all leds and connectors are clearly labeled with silk-screening to identify associated signals. demo kit contents DS3154DK board cd-rom chipview software ds3154.def definition file DS3154DK data sheet ds3154 data sheet ordering information part description DS3154DK ds3154 demo kit features soldered ds3154 for best signal integrity bnc connectors, transformers and termination passives for all four lius careful layout for analog signal paths equipment-side connector for external data source/sink or external remote loopback on-board ds3 and e3 crystal oscillators ds3154 configured for cpu bus operation for complete control over the device on-board dallas microcontroller and included software provide point-and-click access to the ds3154 register set leds for interrupt, loss-of-signal, transmit driver monitor, and prbs sync banana jack connectors for v dd and gnd support use of lab power supplies separate ds3154 v dd to enable i dd measurements easy-to-read silk screen labels identify the signals associated with all connectors, jumpers and leds ds3154d k quad ds3/e3/sts-1 liu demo kit www.maxim-ic.com
ds3154 demo kit 2 of 11 component list designation qty descript ion manufacturer part u1 1 quad ds3/e3/sts1 liu, 144-pin bga dallas semiconductor ds3154 u12 1 high-speed microcontroller, 44-pin tqfp dallas semiconductor ds87c520-ecl u11 1 dual rs232 xmitr/receiver, 16-pin so (300-mil) dallas semiconductor ds232as u10 so, 8-pin, step-up dc-dc converter 0.5a limit maxim max1675eua u6, u7 2 oct buffer/driver, 3.3v sop, 20-pin narrow texas instruments sn74alvc244nsr u2, u4, u5 3 ic, hex inverter, so toshiba tc74hc04afn c1, c2, c7, c8, c14, c24, c43, c44, c47?c60 22 0.1 f, 25v 10% ceramic capacitors (1206) panasonic ecj-3vb1e104k c13, c15?c17, c20, c22, c23, c25, c26, c37, c38 11 10 f, 10v, 20% ceramic capacitors (1206) panasonic ecj-3yb1a106m c27?c36, c39?c42 14 0.1 f, 16v 10% ceramic capacitors (0805) phycomp 08052r104k7b20d c45, c46 2 22pf, 100v 10% ceramic capacitors (1206) avx 12061a220kat2a c18, c19 2 68 f, 16v 20% tantalum capacitors (d case) panasonic ecs-t1cd686r c3?c6, c9?c12 8 47,000pf, 0v 10% ceramic capacitors (1206) p anasonic ecu-v1h473kbw d1 1 1a, 50v diode generic 1n4001 ds1-ds3, ds5, ds6, ds9, ds10, ds13, ds14, ds18 10 led, red, smd panasonic ln1251c ds4, ds7, ds8, ds11, ds12, ds16, ds19, ds20 8 led, green, smd panasonic ln1351c j1 1 connector, 10-pin, dual row, vertical digi-key (distributor) s2012-05-nd j2?j9 8 right angle bnc amphenol 31-5431 j10 1 connector, db9 ra, short case amp 788750-2 j11 1 terminal strip, 50-pin, dual row vertical samtec tsw-125-07-t-d j12, j14 2 socket, banana plug, horizontal, red mouser 164-6219 j13 1 socket, banana plug, horizontal, black mouser 164-6218 jmp1?jmp10 10 do not place, open 3-pin th jumper n/a n/a jmp11?jmr14 4 do not place, shorted 2-pin th jumper n/a n/a l1 1 22.0 h, 2-pin smt 20% inductor coiltronics up1b-220 r7?r12, r14, r31, r32, r34?r36, r38, r77, r78, r83-r90, r96?r98 26 332 1% 1/10w resistors (0805) panasonic erj-6enf3320v r48?r52, r60?r76 22 33.2 1% 1/10w resistors (0805) panasonic erj-6enf33r2v r17, r41, r42, r46, r55, r56, r92 7 0 5% 1/10w resistors (0805) panasonic erj-6gey0r00v r1?r6, r13, r15, r16, r18, r19, r22, r24?r30, r40, r43, r53, r54, r79?r82, r91, r95 29 10k 5%, 1/10w resistors (0805) panasonic erj-6geyj103v r93 1 3.9 5%, 1/10w resistors (0805) panasonic erj-6geyj3r9v r20, r21, r23, r33, r37, r39, r44, r45, r47, r57?r59 12 resistors (0805), do not populate n/a n/a sw1?sw4 4 switch, spdt slide, 3-pin th tyco ssa12 sw5, sw6 2 switch mom 4-pin single pole panasonic evqpae04m t1?t8 8 xfmr, xmit/rcv, 1 to 2ct, smt 6-pin pulse engineering pe-65968 y1 1 oscillator, crystal clock, 3.3v, 44.736mhz saronix nth089aa3-44.736 y2 1 oscillator, crystal clock, 3.3v, 34.368mhz saronix nth089aa3-34.368 y3 1 11.0592mhz low-profile crystal pletronics lp49-33-11.0592m
ds3154 demo kit 3 of 11 board floorplan figure 1 shows the floorplan of the DS3154DK. the ds3154 is near the center of the board, surrounded by 2:1 transformers. the line-side bnc connectors for the transmit (tx) and receive (rx) differential pairs are located at the bottom of the board. leds driven by ds3154 pins rlosn , tdmn , and prbsn are located next to the corresponding bnc connectors. an led driven by the ds3154?s int pin is located to the far right. the system connector in the upper-left corner presents all of the ds3154?s framer interface pins: rclkn, rposn/rdatn, rneg/rlcvn, tclkn, tposn/tdatn, and tnegn. in the upper-right corner are banana jacks for ground, board v dd , and a separate ds3154 v dd (useful for ds3154 i dd measurements). the board also contains ds3 and e3 oscillators and the necessary jumpers to configure the ds3154 transmitters for clocking from the oscillators, from the system connector or from the ds3154 receivers (external remote loopback). in the right-center of the board are a ds87c520 microcontroller and associated components, including four switches and four leds connected to the controller?s general-purpose i/o pins. the microcontroller translates memory access requests from the rs-232 serial port (top-center of the board) into register accesses on the ds3154. figure 1. board floorplan system connector ds3154 bnc rx4 xfrmr board vdd gnd ds3 osc int jtag led ds3154 vdd serial port and rs-232 transceiver power- supply components xfrmr xfrmr xfrmr xfrmr xfrmr xfrmr xfrmr bnc tx4 bnc tx2 bnc rx2 bnc rx3 bnc tx3 bnc tx1 bnc rx1 leds leds leds leds c reset 87c520 c ds3/e3 clock jumpers e3mclk t3mclk tclk1 tclk2 tclk3 tclk4 pwr led e3 osc 3154 reset clock buffers clock buffers external/internal clock jumpers tclk1 tclk2 tclk3 tclk4 general purpose switches and leds c osc
ds3154 demo kit 4 of 11 tclk jumpers jumpers jmp7, jmp8, jmp9, and jmp10 (just below the system connector) select the clock source for the ds3154 transmitters. the center pin on each of these jumpers is connected directly to the associated tclk pin on the ds3154. to drive a ds3154 tclk pin from the system connector, connect the center pin and the ext (external) pin of the associated jumper. to drive a ds3154 tclk pin from one of the on-board oscillators, connect the center pin and the int (internal) pin of the associated jumper. jumpers jmp2, jmp3, jmp4, and jmp5 select between the ds3 oscillator and the e3 oscillator ( figure 2 ). figure 2. tclk jumpers line-side connections the DS3154DK implements the transmit (tx) and receive (rx) line interface networks recommended in the ds3154 data sheet and shown in figure 3 . the bnc connectors for liu1 are labeled tx1 and rx1. the bnc connectors for liu2 are labeled tx2 and rx2. the bnc connectors for liu3 are labeled tx3 and rx3. the bnc connectors for liu4 are labeled tx4 and rx4. figure 3. line-side circuitry 1:2ct 1:2ct 0.05 f transmit receive txp txn rxp rxn each liu 330 (1%) 0.05 f 330 (1%) ds315x ds3 osc e3 osc jmp2 ds3154 tclk1 jmp7 tclk1 system connector ds3 osc e3 osc jmp3 ds3154 tclk2 tclk2 ds3 osc e3 osc jmp4 ds3154 tclk3 tclk3 ds3 osc e3 osc jmp5 ds3154 tclk4 tclk4 ext int jmp8 ext int jmp9 ext int jmp10 ext int
ds3154 demo kit 5 of 11 system connector the 50-pin system connector at the top of the board gives access to the following ds3154 signals: stmclk, rclkn, rposn/rdatn, rneg/rlcvn, tclkn, tposn/tdatn, and tnegn. the system connector can be used to connect the ds3154 to an external ds3/e3 framer or other data source/sink. by using jumpers to connect tclkn to rclkn, tposn to rposn, and tnegn to rnegn, the system connector can also be used to implement an external remote loopback. in addition, it can be used to wire ds3154 input pins like tposn and tnegn low. to wire a pin low, use a jumper to connect it to the neighboring gnd pin on the upper row of the system connector. microcontroller, switches, and leds the ds87c520 microcontroller has factory-installed firmware in on-chip nonvolatile memory. this firmware translates memory access requests from the rs-232 serial port into register accesses on the ds3154. switches sw1 through sw4 and leds ds7, ds11, ds19, and ds20 are connected to four general-purpose i/o pins on the microcontroller. when the microcontroller starts up it turns on ds20 and leaves ds7, ds11, and ds19 off to indicate that the controller is working correctly. otherwise, these switches and leds are not used by the DS3154DK firmware. power-supply connectors connect a 3.3v power supply across the red j12 (dk v dd ) and black j13 (gnd) banana jacks. connect a separate supply to the red j14 (3154 v dd ) and black j13 (gnd). jumpers (jmp11?jmp14) are provided to measure the device?s current and can be used instead of j14. the supplies (v dd and v3_3) have been separated from what is shown in the schematic (page 4, section d-3) because switching power-supply noise is affecting generated jitter on the ds3154. the supplies should not be wired together for any jitter peformance measurements. connecting to a computer connect a standard db-9 serial cable between the serial port on the DS3154DK and an available serial port on the host computer. the host computer must be a windows ? -based pc. be sure the cable is a standard straight- through cable rather than a null-modem cable. null-modem cables prevent proper operation. installing and running the software chipview is a general-purpose program that supports a number of dallas semiconductor demo kits. to install the chipview software, run setup.exe from the disk included in the DS3154DK box or from the zip file downloadable on our website at www.maxim-ic.com/DS3154DK . after installation, run the chipview program with the DS3154DK board powered up and connected to the pc. if the default installation options were used, one easy way to run chipview is to click the start button on the windows toolbar and select programs chipview chipview. in the opening screen, click the register view button. (the demo and terminal buttons are not supported for the DS3154DK.) select the correct serial port in the port selection dialog box, then click ok. next, the definition file assignment window appears. this window has subwindows to select definition files for up to four separate boards on other dallas evaluation platforms. because chipview is communicating with the DS3154DK, only one subwindow is active. in the active subwindow, select the ds3154.def definition file from the list shown, or browse to find it in another directory. press the continue button. after selecting the definition file, the main part of the chipview window displays the ds3154?s register map. the registers in liu1 are displayed in the left column followed by registers for the other lius in subsequent columns. to select a register, click on it in the register map. when a register is selected, the full name of the register and its bit map are displayed at the bottom of the chipview window. bits that are logic 0 are displayed in white, while bits that are logic 1 are displayed in green. windows is a registered trademark of microsoft corp.
ds3154 demo kit 6 of 11 the chipview software supports the following actions: toggle a bit. select the register in the register map and then click the bit in the bit map. write a register. select the register, click the write button, and enter the value to be written. write all registers. click the write all button and enter the value to be written. read a register. select the register in the register map and click the read button. read all registers. click the read all button. basic DS3154DK configuration these example configurations provide a quick start to using the DS3154DK. the ds3154 and the DS3154DK can be configured in many other ways. to set up other configurations, refer to the ds3154 data sheet and other sections of this data sheet. ds3 configuration 1) on the system connector, jumper all four tpos pins and all four tneg pins to ground. 2) on jumpers jmp7 through jmp10, connect the center post to the int post. this connects the ds3154?s tclk1 through tclk4 pins to an on-board oscillator. 3) place jumpers jmp2 through jmp5 to connect the ds3154?s tclk1 through tclk4 pins to the on-board ds3 oscillator. make sure jmp1 has t3mclk connected to the ds3 oscillator. make sure jmp6 has e3mclk connected to the e3 oscillator. 4) press and release the ds3154 reset button on the dk board ?or? set and then clear the rst bit in each gcr register. the reset default mode is ds3. 5) clear the tts bit in each tcr register and clear the rts bit in each rcr register. 6) set the tdsa and tdsb bits in each gcr register to transmit a 2 15 - 1 prbs pattern. 7) for each liu port, connect the transmitter to the receiver using 75 coax to configure an external local loopback ?or? set the llb bit in each gcr register to configure an internal local loopback. 8) press the read all button twice to update the display. at this point the transmitter is generating a 2 15 - 1 prbs pattern that is being looped back to the receiver. on the DS3154DK board, the prbs leds should be lit, indicating prbs sync. the tdm and rlos leds should not be lit. in the register map, the sr and srl registers should contain all zeros. e3 configuration 1) on the system connector, jumper all four tpos pins and all four tneg pins to ground. 2) on jumpers jmp7 through jmp10, connect the center post to the int post. this connects the ds3154?s tclk1 through tclk4 pins to an on-board oscillator. 3) place jumpers jmp2 through jmp5 to connect the ds3154?s tclk1 through tclk4 pins to the on-board e3 oscillator. make sure jmp6 has e3mclk connected to the e3 oscillator. make sure jmp1 has t3mclk connected to the ds3 oscillator. 4) press and release the ds3154 reset button on the dk board ?or? set and then clear the rst bit in each gcr register. 5) set the e3 bit in each gcr register. 6) clear the tts bit in each tcr register and clear the rts bit in each rcr register. 7) set the tdsa and tdsb bits in each gcr register to transmit a 2 23 - 1 prbs pattern. 8) for each liu port, connect the transmitter to the receiver using 75 coax to configure an external local loopback ?or? set the llb bit in each gcr register to configure an internal local loopback. 9) press the read all button twice to update the display. at this point the transmitter is generating a 2 23 - 1 prbs pattern that is being looped back to the receiver. on the DS3154DK board, the prbs leds should be lit, indicating prbs sync. the tdm and rlos leds should not be lit. in the register map, the sr and srl registers should contain all zeros.
ds3154 demo kit maxim/dallas semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a ma xim/dallas semiconductor product. no circuit patent licenses are implied. maxim/dallas semiconductor reserves the right to change the circuitry and specification s without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2003 maxim integrated products printed usa 7 of 11 sts-1 configuration 1) on the system connector, jumper all four tpos pins and all four tneg pins to ground. 2) on jumpers jmp7 through jmp10, connect the center post to the ext post. this connects the ds3154?s tclk1 through tclk4 pins to the respective pins on the system connector. (the position of jumpers jmp1 through jmp6 does not matter.) 3) apply an sts-1 clock source (51.84mhz) to the stmclk, tclk1, tclk2, tclk3, and tclk4 pins on the system connector. 4) press and release the ds3154 reset button on the dk board ?or? set and then clear the rst bit in each gcr register. 5) set the e3 and sts bits in each gcr register to configure each liu for sts-1 operation. 6) clear the tts bit in each tcr register and clear the rts bit in each rcr register. 7) set the tdsa and tdsb bits in each gcr register to transmit a 2 15 - 1 prbs pattern. 8) for each liu port, connect the transmitter to the receiver using 75 coax to configure an external local loopback ?or? set the llb bit in each gcr register to configure an internal local loopback. 9) press the read all button twice to update the display. at this point the transmitter is generating a 2 15 - 1 prbs pattern that is being looped back to the receiver. on the DS3154DK board, the prbs leds should be lit, indicating prbs sync. the tdm and rlos leds should not be lit. in the register map, the sr and srl registers should contain all zeros. ds3154 information the ds3154 quick view page on our website has the latest ds3154 data sheet, application notes, and downloads. go to www.maxim-ic.com/ds3154 . DS3154DK information the DS3154DK quick view page on our website has the latest DS3154DK data sheet, chipview software updates, and downloads. go to www.maxim-ic.com/DS3154DK . technical support for additional technical support, please email your questions to telecom.support@dalsemi.com .
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