19-3524; Rev 0; 11/04 MAX3345E Evaluation Kit The MAX3345E evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX3345E USB level translator. The EV kit includes TSSOP and UCSPTM versions of the MAX3345E IC, which are configured as a master and slave unit, respectively. The EV kit is designed to be driven by the on-board single-ended/differential driver, or directly connected to a microcontroller (C) or application-specific integrated circuit (ASIC). Features USB 1.1 Full-Speed Compliant (12Mbps) Single-Supply Operation Low-Profile (1.0mm max) Design On-Board Oscillator Included USB A-B Cable Jumper-Selectable Master/Slave Configuration Fully Assembled and Tested Also Evaluates MAX3344E Ordering Information UCSP is a trademark of Maxim Integrated Products, Inc. PART TEMP RANGE MAX3345EEVKIT 0C to +70C IC PACKAGE 16 TSSOP, 16 UCSP Note: To evaluate the MAX3344E, request a MAX3344EEUD and a MAX3344EEBE free sample with the MAX3345EEVKIT. Component List DESIGNATION QTY C1, C3 C2, C4 C5-C14 2 DESCRIPTION 10F 20%, 20V tantalum capacitors (B case) AVX TAJB106M020 DESIGNATION QTY DESCRIPTION R3-R6 4 23.7 1% resistors (0603) R7 1 620 5% resistor (1206) R8 1 374k 1% resistor (0603) 750k 1% resistor (0603) R9 1 U1 1 MAX3345EEUE (16-pin TSSOP) U2 1 MAX3345EEBE (16-pin UCSP) MAX603ESA (8-pin SO) 2 10F 20%, 10V tantalum capacitors (B case) AVX TAJB106M010 or AVX TAJB106M016 U3 1 U4 1 MAX604ESA (8-pin SO) 10 1.0F, 10V X7R ceramic capacitors (0603) TDK C1608X5R1A105K or TDK C1608X7R1A105K U5 1 Fairchild NC7SZ14P5 (5-pin SC70) U6 1 Fairchild NC7WZ17P6 (6-pin SC70) U7 1 Fairchild NC7SZ05M5 (5-pin SOT23) Y1 1 6.000MHz crystal oscillator module D1 1 Green surface-mount LED J1, J3 2 16-pin headers J2 1 USB A connector Assmann Electronics AU-Y1006 D+M, D-M, D+S, D-S 4 J4 1 USB B connector Assmann Electronics AU-Y1007 Scope probe connectors (3.5mm diameter) Tektronics 131-4244-00 [Qty 100] 131-5031-00 [Qty 25] None 14 Shunts (for JU1-JU14) None 1 USB A-B cable (5ft or 1.5m) None 1 MAX3345E EV kit PC board JU1, JU2, JU3, JU6 4 JU4, JU5, JU7-JU14 10 3-pin headers R1, R2 2 15k 5% resistors (0603) 2-pin headers ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 Evaluates: MAX3344E/MAX3345E General Description Evaluates: MAX3344E/MAX3345E MAX3345E Evaluation Kit Component Suppliers SUPPLIER PHONE FAX WEBSITE 3M 888-364-3577 800-321-6329 www.3m.com Assmann Electronics 877-277-6266 480-897-7255 www.usa-assmann.com AVX 843-946-0238 843-626-3123 www.avxcorp.com Fairchild 888-522-5372 408-721-1635 www.fairchildsemi.com TDK 847-803-6100 847-390-4405 www.component.tdk.com Note: Indicate that you are using the MAX3345E when contacting these component suppliers. Quick Start Slave Driving Master Required equipment: * DC power supply capable of supplying between +6V and +9V at 1A Table 1. Default Shunt Positions (Slave Driving Master) JUMPER SHUNT POSITION JU1 ON 15k resistor on D- line enabled JU2 ON 15k resistor on D+ line enabled JU3 OFF Driver disconnected from VPO line of master (U1) JU4 OFF Driver disconnected from VMO line of master (U1) JU5 1-2 Secondary power supply set to 1.8V JU6 ON Secondary power supply connected to circuit JU7 1-2 Master receive selected JU8 2-3 Internal 1.5k resistor is disconnected from the master D+ line JU9 1-2 Master inputs in differential mode JU10 2-3 Master suspend disabled JU11 2-3 Slave transmit selected JU12 1-2 5) Connect a scope probe to the D+M and the D-M scope jacks. Internal 1.5k resistor is disconnected from the slave D+ line JU13 2-3 Slave inputs in single-ended mode 6) Set the DC power supply to +6V. JU14 2-3 Slave suspend disabled * Oscilloscope (>100MHz) * Two 3.5mm scope probes * Function generator capable of providing a 6MHz square wave with an amplitude of 1.8VP-P to 3.3VP-P The MAX3345E EV kit is fully assembled and tested. Follow the steps below to verify board operation. Do not turn on the power supply until all connections are completed: 1) Ensure that the jumpers are in their default positions. See Table 1 for shunt positions. 2) Connect the positive output of the function generator to pin 8 of header J3. 3) Connect the ground of the function generator to pins 9 and 16 of header J3. 4) Connect the DC power supply to the user pads marked VSUP and GND. DESCRIPTION 7) Turn on the DC power supply. 8) Plug the USB cable into the USB A socket. 9) Plug the other end of the USB cable into the USB B socket. Master Driving Slave Required equipment: * DC power supply capable of supplying between +6V and +9V at 1A 10) The green LED turns on, confirming that a connection between the master and slave has been made. * Oscilloscope (>100MHz) 11) Turn on the function generator and set it to generate a 6MHz square wave, with an amplitude of 1.8VP-P. The MAX3345E EV kit is fully assembled and tested. Follow the steps below to verify board operation. Do not turn on the power supply until all connections are completed: 12) Verify with the oscilloscope that a +3.3V differential signal is being received on the D+M and D-M lines. 2 * Two 3.5mm scope probes _______________________________________________________________________________________ MAX3345E Evaluation Kit 2) Connect the DC power supply to the user pads marked VSUP and GND. 3) Connect a scope probe to the D+S and the D-S scope jacks. 4) Set the DC power supply to +6V. 5) Turn on the DC power supply. 6) Plug the USB cable into the USB A socket. 7) Plug the other end of the USB cable into the USB B socket. 8) The green LED turns on, confirming that a connection between the master and slave has been made. 9) Verify with the oscilloscope that a +3.3V differential signal is being received on the D+S and D-S lines. Detailed Description The MAX3345E EV kit provides a proven PC board layout to evaluate the MAX3345E. When connecting the MAX3345E EV kit to an ASIC or C, it must be interfaced to appropriate timing signals for proper operation. Table 2. Shunt Positions (Master Driving Slave) JUMPER SHUNT POSITION JU1 ON 15k resistor on D- line enabled JU2 ON 15k resistor on D+ line enabled JU3 OFF Driver disconnected from VPO line of master (U1) JU4 OFF Driver disconnected from VMO line of master (U1) JU5 1-2 Secondary power supply set to 1.8V JU6 ON Secondary power supply connected to circuit JU7 1-2 Master receive selected JU8 2-3 Internal 1.5k resistor is disconnected from the master D+ line JU9 1-2 Master inputs in differential mode DESCRIPTION Connect the DC power supply to the VSUP pad, and connect the ground return to the GND pad. See the MAX3344E/MAX3345E EV kit schematic (Figure 1). Refer to the MAX3344E/MAX3345E data sheet for timing requirements. On-Board Single-Ended/Differential Driver The MAX3345E EV kit is shipped with an on-board (master driving slave) single-ended/differential driver. This driver is used to evaluate the MAX3345E's switching characteristics without the user providing their own C or ASIC. The signal is provided by a crystal oscillator (Y1), which is fed into an inverter (U5) and a buffer (U6) with Schmitt trigger inputs. The buffer has been added to equalize the propagation delays from the crystal oscillator to the differential inputs VPO and VMO. Jumpers JU3 and JU4 control the operation of the on-board driver. See Table 3 for shunt positions. Note: When operated in differential mode, the on-board differential driver may generate a small skew between the D+/D- lines. For improved performance, drive the VPO and VMO pins of the MAX3345E with a precision differential data source at pins J1-8 (VPO) and J1-9 (VMO). On-Board Power Supplies The MAX3345E EV kit contains two on-board power supplies, that take an unregulated voltage of +6V to +9V DC and produce a regulated +5V (500mA max) and a jumper-selectable regulated +1.8V/+3.3V (500mA max). The +5V supply powers the USB bus, while the +1.8V/ +3.3V supply is an alternative to a user-supplied C/ASIC logic power supply. Jumpers JU5 and JU6 control the +1.8V/+3.3V power supply. See Table 4 for shunt positions. Table 3. On-Board Driver Jumper JUMPER SHUNT POSITION JU3 JU4 OFF OFF Driver is disconnected from circuit JU3 JU4 OFF 2-3 VPO is left for the user to drive, VMO is grounded DESCRIPTION JU10 2-3 Master suspend disabled JU11 2-3 Slave transmit selected JU3 JU4 OFF 1-2 Invalid jumper setting JU12 1-2 Internal 1.5k resistor is disconnected from the slave D+ line JU3 JU4 ON 1-2 Driver is operating in differential mode JU13 2-3 Slave inputs in single-ended mode JU14 2-3 Slave suspend disabled JU3 JU4 ON 2-3 Driver is operating in single-ended mode _______________________________________________________________________________________ 3 Evaluates: MAX3344E/MAX3345E 1) Ensure that the jumpers are in their default positions. See Table 2 for shunt positions. Evaluates: MAX3344E/MAX3345E MAX3345E Evaluation Kit Table 4. 1.8V/3.3V Power-Supply Jumper JUMPER SHUNT POSITION JU5 1-2 Output voltage is +1.8V JU5 2-3 Output voltage is +3.3V JU6 ON Power supply connected to circuit OFF Power supply disconnected from circuit. NOTE: User must supply power through the user pads marked VUP and GND. JU6 DESCRIPTION On-Board Resistive Loads The MAX3345E EV kit also contains two built-in 15k loads, which are located on the D+ and D- lines of the master IC (U1). Jumpers JU1 and JU2 connect these loads to the line. See Table 5 for shunt positions. Table 5. Resistive Load Jumper JUMPER SHUNT POSITION JU1, JU2 ON Master resistive load enabled JU1, JU2 OFF Master resistive load disabled DESCRIPTION Mode Select Jumpers JU9 and JU13 control the mode functions on the master and slave. See Table 7 for shunt positions. Table 7. Mode Select Jumper Settings JUMPER SHUNT POSITION JU9 1-2 Master inputs (VPO and VMO) differential mode JU9 2-3 Master inputs (VPO and VMO) single-ended mode JU13 1-2 Slave inputs (VPO and VMO) differential mode JU13 2-3 Slave inputs (VPO and VMO) single-ended mode Enumerate Jumper Settings Jumper JU8 connects an internal 1.5k pullup resistor from the master D+ line to +3.3V. Jumper JU12 connects an internal 1.5k pullup resistor from the slave D+ line to +3.3V. See Table 8 for shunt positions. Table 8. Enumerate Jumper Settings JUMPER SHUNT POSITION JU8 1-2 1.5k resistor is connected to the master D+ line JU8 2-3 1.5k resistor is disconnected from the master D+ line JU12 1-2 1.5k resistor is connected to the slave D+ line (full-speed operation) JU12 2-3 1.5k resistor is disconnected from the slave D+ line IC Control Jumpers The MAX3345E EV kit contains jumpers, which allow the user to manipulate various functions on both the master and slave (U1 and U2). Jumpers JU7 through JU14 set the output enable, enumerate, mode, and suspend functions on the master and slave (U1 and U2), respectively. Suspend Mode Jumpers JU10 and JU14 control the suspend function on the master and slave. See Table 6 for shunt positions. Table 6. Suspend Jumper Settings 4 JUMPER SHUNT POSITION JU10 1-2 Suspend function on master enabled JU10 2-3 Suspend function on master disabled JU14 1-2 Suspend function mode on slave enabled JU14 2-3 Suspend function mode on slave disabled DESCRIPTION DESCRIPTION DESCRIPTION Note: The MAX3345E is not compatible with low-speed devices. Output Enable Jumper Settings The output enable jumper selects between a transmit mode or receive mode. Jumpers JU7 and JU11 control the output enable for the master and slave. See Table 9 for shunt positions. _______________________________________________________________________________________ MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E Evaluating the MAX3344E The MAX3345E EV kit is also capable of evaluating the pin-compatible MAX3344E. To evaluate the MAX3344E, replace U1 with a MAX3344EEUD and replace U2 with a MAX3344EEBE. Table 9. Output Enable Jumper Settings JUMPER SHUNT POSITION JU7 1-2 Master receive selected 16-Pin Data Connectors J1, J3 JU7 2-3 Master transmit selected The MAX3345E EV kit contains two 16-pin headers for interfacing with an ASIC or C. Table 10 lists the function of each pin. Each header is identical with the exception that J1 is connected to the master (U1) and J3 is connected to the slave (U2). Use a 3M connector with part number CHG-1016-001010-KEP (or equivalent) to interface with this header. See the Component Suppliers section for contact information. Inputs and outputs are relative to the EV kit. JU11 1-2 Slave receive selected JU11 2-3 Slave transmit selected DESCRIPTION Table 10. J1, J3 Data Connector PIN SIGNAL I/O FUNCTION 1 SUSPEND I 0 = normal operation 1 = suspend operation 2 RCV O Receiver output (single-ended) 3 VPI O Single-ended output (D+) 4 VMI O Single-ended output (D-) 5 USB_DET 6 MODE I Mode: 0 = VPO/VMO operate as single-ended inputs 1 = VPO/VMO operate as differential inputs 7 ENUMERATE I Enumerate: 0 = 1.5k resistor disconnected from the D+ line 1 = 1.5k resistor connected to the D+ line (full-speed operation) O USB detect: 0 = device is not connected to the USB bus 1 = device is connected to the USB bus 8 VPO I Single-ended input (D+) 9 VMO I Single-ended input (D-) 10 OE I Output enable: 0 = transmitter enabled 1 = transmitter disabled 11 VL -- +1.8V/+3.3V on-board power supply 12-16 GND -- Ground _______________________________________________________________________________________ 5 Evaluates: MAX3344E/MAX3345E MAX3345E Evaluation Kit VUP 1 JU10 2 J1-1 J1-12 D-M 6 D- SUSP 12 J2-2 R3 23.7 1% 3 J1-13 J1-14 J1-2 J1-15 J1-3 J1-16 J1-4 1 7 8 16 J1-5 JU1 +5V RCV J2-1 5V VPI VMI VCC R1 15k 10 C7 1.0F USB_DET J2-4 VUP J1-6 1 JU9 2 3 3 MODE VUP 1 JU8 2 J1-7 VUP MAX3345E 9 D+ 13 ENUM JU2 USB A D+M 15 C5 1.0F VPO 2 J1-8 4 J1-9 VL GND VMO 5 R2 15k 11 VPO VMO VUP 1 JU7 2 J2-3 R4 23.7 1% 3 J1-11 J1-10 U1 VTRM 14 C6 1.0F OE 3 SIP-16P Figure 1. MAX3345E EV Kit Schematic (Sheet 1 of 3) 6 _______________________________________________________________________________________ MAX3345E Evaluation Kit D-S 1 JU14 2 B2 J3-1 J3-12 D- SUSP B4 J3-13 D2 J3-2 J3-15 J3-3 J3-16 J3-4 J4-2 R5 23.7 1% 3 J3-14 A1 A2 USB_DET C3 J3-5 RCV +5V VPI VMI VCC A3 J4-1 C10 1.0F USB_DET J4-4 VUP J3-6 1 JU13 2 3 C2 1 JU12 2 B3 VUP MAX3345E D+ C4 J4-3 R6 23.7 1% ENUM USB B D+S C8 1.0F C1 J3-9 VL GND D1 J3-8 1 JU11 2 B1 A4 VPO VMO VUP J3-10 U2 3 D3 J3-11 MODE VUP J3-7 Evaluates: MAX3344E/MAX3345E VUP VTRM D4 C9 1.0F OE 3 SIP-16P Figure 1. MAX3345E EV Kit Schematic (Sheet 2 of 3) _______________________________________________________________________________________ 7 Evaluates: MAX3344E/MAX3345E MAX3345E Evaluation Kit +5V VSUP 4 C1 10mF GND 20V 1 OFF IN OUT 2 8 GND GND SET GND GND IN OUT D1 VUP C2 10mF 10V U3 MAX603 +5V 1 7 2 USB_DET 5 3 N.C. 5 VCC U7 C14 1.0mF A GND R7 620W 4 Y INVERTER-UHS-NC7SZ05 3 1 C3 10mF 20V 2 GND 5 VUP U4 GND VUP JU6 8 C4 10mF 10V GND 7 VUP MAX604 3 4 GND OFF GND SET C12 1.0mF 6 R8 VUP 374kW 1 1% 5 +5V NC7SZ14 2 OE 3 2 1 VCC 4 JU3 2 VUP JU5 R9 750kW 1% 2 GND OUTPUT 3 VPO 3 C11 1.0mF Y1 5 U5 1 2 3 A1 U6 VCC GND Y1 A2 Y2 5 6 4 1 JU4 2 3 BUFFER-DUAL-NC7WZ17 Figure 1. MAX3345E EV Kit Schematic (Sheet 3 of 3) 8 C13 1.0mF _______________________________________________________________________________________ VMO MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E Figure 2. MAX3345E EV Kit Component Placement Guide-- Component Side Figure 3. MAX3345E EV Kit PC Board Layout--Component Side _______________________________________________________________________________________ 9 Evaluates: MAX3344E/MAX3345E MAX3345E Evaluation Kit Figure 4. MAX3345E EV Kit PC Board Layout--Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim 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 ____________________ 10 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.