DS3154DK

DS3154DK Quad DS3/E3/STS-1 LIU Demo Kit www.maxim-ic.com GENERAL DESCRIPTION FEATURES The DS3154DK is an easy-to-use evaluation kit for the DS3154 quad DS3/E3/STS-1 LIU. A surfacemounted 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-andclick 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 § § § § § § § § 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 VDD and GND Support Use of Lab Power Supplies Separate DS3154 VDD to Enable IDD Measurements Easy-to-Read Silk Screen Labels Identify the Signals Associated with All Connectors, Jumpers and LEDs ORDERING INFORMATION PART DS3154DK DESCRIPTION DS3154 Demo Kit 1 of 11 REV: 060903 DS3154 Demo Kit COMPONENT LIST DESIGNATION QTY DESCRIPTION MANUFACTURER U1 U12 U11 U10 U6, U7 U2, U4, U5 C1, C2, C7, C8, C14, C24, C43, C44, C47–C60 C13, C15–C17, C20, C22, C23, C25, C26, C37, C38 C27–C36, C39–C42 C45, C46 C18, C19 C3–C6, C9–C12 D1 DS1-DS3, DS5, DS6, DS9, DS10, DS13, DS14, DS18 DS4, DS7, DS8, DS11, DS12, DS16, DS19, DS20 J1 J2–J9 J10 J11 J12, J14 J13 JMP1–JMP10 JMP11–JMR14 L1 R7–R12, R14, R31, R32, R34–R36, R38, R77, R78, R83-R90, R96–R98 R48–R52, R60–R76 R17, R41, R42, R46, R55, R56, R92 R1–R6, R13, R15, R16, R18, R19, R22, R24–R30, R40, R43, R53, R54, R79–R82, R91, R95 R93 R20, R21, R23, R33, R37, R39, R44, R45, R47, R57–R59 SW1–SW4 SW5, SW6 T1–T8 Y1 Y2 Y3 1 1 1 2 3 Quad DS3/E3/STS1 LIU, 144-pin BGA High-speed microcontroller, 44-pin TQFP Dual RS232 XMITR/receiver, 16-pin SO (300-mil) SO, 8-pin, step-up DC-DC converter 0.5A limit Oct buffer/driver, 3.3V SOP, 20-pin narrow IC, hex inverter, SO Dallas Semiconductor Dallas Semiconductor Dallas Semiconductor Maxim Texas Instruments Toshiba DS3154 DS87C520-ECL DS232AS MAX1675EUA SN74ALVC244NSR TC74HC04AFN 22 0.1mF, 25V 10% ceramic capacitors (1206) Panasonic ECJ-3VB1E104K 11 10mF, 10V, 20% ceramic capacitors (1206) Panasonic ECJ-3YB1A106M 14 2 2 8 1 0.1mF, 16V 10% ceramic capacitors (0805) 22pF, 100V 10% ceramic capacitors (1206) 68mF, 16V 20% tantalum capacitors (D case) 47,000pF, 0V 10% ceramic capacitors (1206) 1A, 50V diode Phycomp AVX Panasonic Panasonic Generic 08052R104K7B20D 12061A220KAT2A ECS-T1CD686R ECU-V1H473KBW 1N4001 10 LED, red, SMD Panasonic LN1251C 8 LED, green, SMD Panasonic LN1351C 1 8 1 1 2 1 10 4 1 Connector, 10-pin, dual row, vertical Right angle BNC Connector, DB9 RA, short case Terminal strip, 50-pin, dual row vertical Socket, banana plug, horizontal, red Socket, banana plug, horizontal, black Do not place, open 3-pin TH jumper Do not place, shorted 2-pin TH jumper 22.0mH, 2-pin SMT 20% inductor Digi-Key (Distributor) Amphenol Amp Samtec Mouser Mouser N/A N/A Coiltronics S2012-05-ND 31-5431 788750-2 TSW-125-07-T-D 164-6219 164-6218 N/A N/A UP1B-220 26 332W 1% 1/10W resistors (0805) Panasonic ERJ-6ENF3320V 22 33.2W 1% 1/10W resistors (0805) Panasonic ERJ-6ENF33R2V 7 0W 5% 1/10W resistors (0805) Panasonic ERJ-6GEY0R00V Panasonic ERJ-6GEYJ103V 29 10kW 5%, 1/10W resistors (0805) PART 1 3.9W 5%, 1/10W resistors (0805) Panasonic ERJ-6GEYJ3R9V 12 Resistors (0805), do not populate N/A N/A 4 2 8 1 1 1 Switch, SPDT slide, 3-pin TH Switch MOM 4-pin single pole XFMR, XMIT/RCV, 1 to 2CT, SMT 6-pin Oscillator, crystal clock, 3.3V, 44.736MHz Oscillator, crystal clock, 3.3V, 34.368MHz 11.0592MHz low-profile crystal Tyco Panasonic Pulse Engineering Saronix Saronix Pletronics SSA12 EVQPAE04M PE-65968 NTH089AA3-44.736 NTH089AA3-34.368 LP49-33-11.0592M 2 of 11 DS3154 Demo Kit 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 VDD, and a separate DS3154 VDD (useful for DS3154 IDD 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 DS3/E3 CLOCK JUMPERS E3MCLK T3MCLK TCLK1 TCLK2 TCLK3 TCLK4 TCLK4 LED PWR TCLK3 CLOCK BUFFERS CLOCK BUFFERS DS3 OSC TCLK2 GND BOARD VDD SERIAL PORT AND RS-232 TRANSCEIVER EXTERNAL/INTERNAL CLOCK JUMPERS TCLK1 DS3154 VDD 3154 RESET SYSTEM CONNECTOR POWERSUPPLY COMPONENTS mC OSC E3 OSC GENERAL PURPOSE SWITCHES AND LEDS 87C520 mC xfrmr xfrmr mC RESET xfrmr DS3154 JTAG xfrmr xfrmr xfrmr LEDs LED INT xfrmr xfrmr LEDs LEDs LEDs BNC BNC BNC BNC BNC BNC BNC BNC RX4 TX4 RX2 TX2 RX3 TX3 RX1 TX1 3 of 11 DS3154 Demo Kit 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 SYSTEM CONNECTOR TCLK1 EXT JMP7 EXT DS3154 TCLK1 INT DS3 OSC TCLK2 JMP2 E3 OSC JMP8 INT DS3 OSC TCLK3 JMP3 EXT DS3154 TCLK2 E3 OSC JMP9 EXT DS3154 TCLK3 INT DS3 OSC TCLK4 JMP4 E3 OSC JMP10 INT DS3 OSC JMP5 DS3154 TCLK4 E3 OSC 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 TRANSMIT EACH LIU TXP 0.05mF 330W (1%) TXN 1:2ct DS315x RECEIVE RXP 0.05mF 330W (1%) RXN 1:2ct 4 of 11 DS3154 Demo Kit 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 VDD) and black J13 (GND) banana jacks. Connect a separate supply to the red J14 (3154 VDD) and black J13 (GND). Jumpers (JMP11–JMP14) are provided to measure the device’s current and can be used instead of J14. The supplies (VDD 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 straightthrough 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. 5 of 11 DS3154 Demo Kit 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. 15 6) Set the TDSA and TDSB bits in each GCR register to transmit a 2 - 1 PRBS pattern. 7) For each LIU port, connect the transmitter to the receiver using 75W 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. 15 At this point the transmitter is generating a 2 - 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. 23 7) Set the TDSA and TDSB bits in each GCR register to transmit a 2 - 1 PRBS pattern. 8) For each LIU port, connect the transmitter to the receiver using 75W 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. 23 At this point the transmitter is generating a 2 - 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. 6 of 11 DS3154 Demo Kit 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. 15 7) Set the TDSA and TDSB bits in each GCR register to transmit a 2 - 1 PRBS pattern. 8) For each LIU port, connect the transmitter to the receiver using 75W 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. 15 At this point the transmitter is generating a 2 - 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. Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product. No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications 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 © 2003 Maxim Integrated Products · Printed USA © 2003 Maxim Integrated Products · Printed USA © 2003 Maxim Integrated Products · Printed USA © 2003 Maxim Integrated Products · Printed USA