19-2372; Rev 1; 11/02 MAX3341E Evaluation Kit The MAX3341E evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX3341E USB level translator. The EV kit includes TSSOP and UCSP versions of the MAX3341E 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 (µC) 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 MAX3342E Ordering Information PART TEMP RANGE MAX3341EEVKIT 0°C to +70°C IC PACKAGE 16 TSSOP, 16 UCSP Note: To evaluate the MAX3342E, request a MAX3342EEUD and a MAX3342EEBE free sample with the MAX3341EEVKIT. Component List DESIGNATION QTY C1, C3 C2, C4 C5–C14 2 2 10 DESCRIPTION 10µF ±20%, 20V tantalum capacitors (B case) AVX TAJB106M020 4 23.7Ω ±1% resistors (0603) R7 1 620Ω ±5% resistor (1206) R8 1 374kΩ ±1% resistor (0603) 10µF ±20%, 10V tantalum capacitors (B case) AVX TAJB106M010 or AVX TAJB106M016 R9 1 750kΩ ±1% resistor (0603) U1 1 MAX3341EEUE (16-pin TSSOP) U2 1 MAX3341EEBE (16-pin UCSP) U3 1 MAX603ESA (8-pin SO) U4 1 MAX604ESA (8-pin SO) U5 1 Fairchild NC7SZ14P5 (5-pin SC70) U6 1 Fairchild NC7WZ17P6 (6-pin SC70) U7 1 Fairchild NC7SZ05M5 (5-pin SOT23) 1.0µF, 10V X7R ceramic capacitors (0603) TDK C1608X5R1A105K or TDK C1608X7R1A105K 1 Green surface-mount LED J1, J3 2 16-pin headers 4 DESCRIPTION R3–R6 D1 JU1, JU2, JU3, JU6 DESIGNATION QTY 2-pin headers JU4, JU5, JU7–JU14 10 J2 1 USB A connector Assmann Electronics AU-Y1006 J4 1 USB B connector Assmann Electronics AU-Y1007 R1, R2 2 15kΩ ±5% resistors (0603) 3-pin headers Y1 1 6.000MHz crystal oscillator module D+M, D-M, D+S, D-S 4 Scope probe connectors (3.5mm diameter) None 14 Shunts (for JU1–JU14) None 1 USB A-B cable (5ft or 1.5m ) None 1 MAX3341E EV kit PC board None 1 MAX3341E data sheet ________________________________________________________________ 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: MAX3341E/MAX3342E General Description Evaluates: MAX3341E/MAX3342E MAX3341E Evaluation Kit Component Suppliers SUPPLIER 3M PHONE 888-364-3577 FAX 800-321-6329 WEBSITE 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: Please indicate that you are using the MAX3341E when contacting these component suppliers. Quick Start Slave Driving Master Required equipment: • DC power supply capable of supplying between +6V and +9V at 1A • Oscilloscope (>20MHz) Table 1. Default Shunt Positions (Slave Driving Master) JUMPER SHUNT POSITION JU1 ON JU2 ON 15kΩ 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 1.5kΩ resistor is disconnected from the master D+ line • 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 MAX3341E 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. DESCRIPTION 15kΩ resistor on D- line enabled 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 1.5kΩ 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 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. 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 (>20MHz) 11) Turn on the function generator and set it to generate a 6MHz square wave, with an amplitude of 1.8VP-P. The MAX3341E 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 _______________________________________________________________________________________ MAX3341E 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 LEDl 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 MAX3341E EV kit provides a proven PC board layout to evaluate the MAX3341E. When connecting the MAX3341E EV kit to an ASIC or µC, it must be interfaced to appropriate timing signals for proper operation. Table 2. Shunt Positions (Master Driving Slave) JUMPER SHUNT POSITION JU1 ON 15kΩ resistor on D- line enabled JU2 ON 15kΩ resistor on D+ line enabled JU3 ON Driver connected to VPO line of master (U1) DESCRIPTION JU4 1-2 Driver connected to VMO line of master (U1) JU5 1-2 Secondary power supply set to 1.8V JU6 ON Secondary power supply connected to circuit JU7 2-3 Master transmit selected JU8 2-3 Internal 1.5kΩ resistor is disconnected from the master D+ line JU9 1-2 Master inputs in differential mode JU10 2-3 Master suspend disabled JU11 1-2 Slave receive selected JU12 2-3 Internal 1.5kΩ resistor is disconnected from the slave D+ line JU13 1-2 Slave inputs in differential mode JU14 2-3 Slave suspend disabled Connect the DC power supply to the VSUP pad, and connect the ground return to the GND pad. See the MAX3341E EV kit schematic (Figure 1). Refer to the MAX3341E data sheet for timing requirements. On-Board Single-Ended/Differential Driver The MAX3341E EV kit is shipped with an on-board (master driving slave) single-ended/differential driver. This driver is used to evaluate the MAX3341E’s switching characteristics without the user providing his/her own µC 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. 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 JU3 JU4 OFF 1-2 Invalid jumper setting JU3 JU4 ON 1-2 Driver is operating in differential mode JU3 JU4 ON 2-3 Driver is operating in single-ended mode DESCRIPTION On-Board Power Supplies The MAX3341E 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 µC/ASIC logic power supply. Jumpers JU5 and JU6 control the +1.8V/+3.3V power supply. See Table 4 for shunt positions. _______________________________________________________________________________________ 3 Evaluates: MAX3341E/MAX3342E 1) Ensure that the jumpers are in their default positions. See Table 2 for shunt positions. Evaluates: MAX3341E/MAX3342E MAX3341E 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 MAX3341E EV kit also contains two built-in 15kΩ 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 DESCRIPTION JU1, JU2 ON Master resistive load enabled JU1, JU2 OFF Master resistive load disabled 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 1.5kΩ pullup resistor from the master D+ line to +3.3V. Jumper JU12 connects an internal 1.5kΩ 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 1.5kΩ resistor is connected to the master D+ line JU8 2-3 1.5kΩ resistor is disconnected from the master D+ line JU12 1-2 1.5kΩ resistor is connected to the slave D+ line (full-speed operation) IC Control Jumpers The MAX3341E 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. DESCRIPTION DESCRIPTION Suspend Mode Jumpers JU10 and JU14 control the suspend function on the master and slave. See Table 6 for shunt positions. 1.5kΩ resistor is disconnected from the slave D+ line Note: The MAX3341E is not compatible with low-speed devices. Table 6. Suspend Jumper Settings 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. 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 4 DESCRIPTION JU12 2-3 _______________________________________________________________________________________ MAX3341E Evaluation Kit Evaluates: MAX3341E/MAX3342E Evaluating the MAX3342E The MAX3341E EV kit is also capable of evaluating the pin-compatible MAX3342E. To evaluate the MAX3342E, replace U1 with a MAX3342EEUD and replace U2 with a MAX3342EEBE. 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 MAX3341E EV kit contains two 16-pin headers for interfacing with an ASIC or µC. 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 1 SUSPEND I 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 = 1.5kΩ resistor disconnected from the D+ line 1 = 1.5kΩ resistor connected to the D+ line (full-speed operation) 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 O FUNCTION 0 = normal operation 1 = suspend operation USB detect: 0 = device is not connected to the USB bus 1 = device is connected to the USB bus _______________________________________________________________________________________ 5 Evaluates: MAX3341E/MAX3342E MAX3341E Evaluation Kit VUP 1 JU10 2 J1–1 J1–12 D-M 6 D- SUSP 12 J2–2 R3 23.7Ω 1% 3 J1–13 1 J1–2 J1–14 7 J1–3 J1–15 8 J1–4 J1–16 16 J1–5 JU1 +5V RCV J2–1 5V VPI VMI VCC R1 15kΩ 10 C7 1.0µF USB_DET J2–4 VUP J1–6 1 JU9 2 3 3 MODE VUP 1 JU8 2 J1–7 VUP MAX3341E 9 D+ 13 ENUM JU2 USB A D+M 15 C5 1.0µF VPO 2 J1–8 4 J1–9 VL GND VMO 5 R2 15kΩ 11 VPO VMO VUP 1 JU7 2 J2–3 R4 23.7Ω 1% 3 J1–11 J1–10 U1 VTRM 14 C6 1.0µF OE 3 SIP–16P Figure 1. MAX3341E EV Kit Schematic (Sheet 1 of 3) 6 _______________________________________________________________________________________ MAX3341E Evaluation Kit D-S 1 JU14 2 B2 J3–1 J3–12 D- SUSP B4 J3–13 J3–2 J3–15 J3–3 J3–16 J3–4 J4–2 R5 23.7Ω 1% 3 J3–14 D2 A1 A2 USB_DET C3 J3–5 RCV +5V VPI VMI VCC A3 J4–1 C10 1.0µF USB_DET J4–4 VUP J3–6 1 JU13 2 3 C2 1 JU12 2 B3 VUP MAX3341E D+ C4 J4–3 R6 23.7Ω 1% ENUM USB B D+S C8 1.0µF 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: MAX3341E/MAX3342E VUP VTRM D4 C9 1.0µF OE 3 SIP–16P Figure 1. MAX3341E EV Kit Schematic (Sheet 2 of 3) _______________________________________________________________________________________ 7 Evaluates: MAX3341E/MAX3342E MAX3341E Evaluation Kit +5V VSUP 4 C1 10mF GND 20V 1 OUT OFF IN 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 U5 VUP JU5 R9 750kW 1% 2 GND OUTPUT 3 1 2 3 A1 U6 VCC GND Y1 A2 Y2 5 C13 1.0mF 6 4 BUFFER–DUAL–NC7WZ17 Figure 1. MAX3341E EV Kit Schematic (Sheet 3 of 3) 8 VPO 3 C11 1.0mF Y1 5 _______________________________________________________________________________________ 1 JU4 2 3 VMO MAX3341E Evaluation Kit Evaluates: MAX3341E/MAX3342E Figure 2. MAX3341E EV Kit Component Placement Guide— Component Side Figure 3. MAX3341E EV Kit PC Board Layout—Component Side _______________________________________________________________________________________ 9 Evaluates: MAX3341E/MAX3342E MAX3341E Evaluation Kit Figure 4. MAX3341E 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 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.