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19-3524; Rev 0; 11/04
MAX3345E Evaluation Kit
General Description
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). 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
Features
USB 1.1 Full-Speed Compliant (12Mbps)
Evaluates: MAX3344E/MAX3345E
Ordering Information
PART TEMP RANGE 0C to +70C IC PACKAGE 16 TSSOP, 16 UCSP
UCSP is a trademark of Maxim Integrated Products, Inc.
MAX3345EEVKIT
Note: To evaluate the MAX3344E, request a MAX3344EEUD and a MAX3344EEBE free sample with the MAX3345EEVKIT.
Component List
DESIGNATION QTY C1, C3 2 DESCRIPTION 10F 20%, 20V tantalum capacitors (B case) AVX TAJB106M020 10F 20%, 10V tantalum capacitors (B case) AVX TAJB106M010 or AVX TAJB106M016 1.0F, 10V X7R ceramic capacitors (0603) TDK C1608X5R1A105K or TDK C1608X7R1A105K Green surface-mount LED 16-pin headers USB A connector Assmann Electronics AU-Y1006 USB B connector Assmann Electronics AU-Y1007 2-pin headers 3-pin headers 15k 5% resistors (0603) D+M, D-M, D+S, D-S None None None 10 2 4 DESIGNATION QTY R3-R6 R7 R8 R9 U1 U2 U3 U4 U5 U6 U7 Y1 4 1 1 1 1 1 1 1 1 1 1 1 DESCRIPTION 23.7 1% resistors (0603) 620 5% resistor (1206) 374k 1% resistor (0603) 750k 1% resistor (0603) MAX3345EEUE (16-pin TSSOP) MAX3345EEBE (16-pin UCSP) MAX603ESA (8-pin SO) MAX604ESA (8-pin SO) Fairchild NC7SZ14P5 (5-pin SC70) Fairchild NC7WZ17P6 (6-pin SC70) Fairchild NC7SZ05M5 (5-pin SOT23) 6.000MHz crystal oscillator module Scope probe connectors (3.5mm diameter) Tektronics 131-4244-00 [Qty 100] 131-5031-00 [Qty 25] Shunts (for JU1-JU14) USB A-B cable (5ft or 1.5m) MAX3345E EV kit PC board
C2, C4
2
C5-C14
10
D1 J1, J3 J2 J4 JU1, JU2, JU3, JU6 JU4, JU5, JU7-JU14 R1, R2
1 2 1 1 4
14 1 1
________________________________________________________________ Maxim Integrated Products
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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.
MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
Component Suppliers
SUPPLIER 3M Assmann Electronics AVX Fairchild TDK PHONE 888-364-3577 877-277-6266 843-946-0238 888-522-5372 847-803-6100 FAX 800-321-6329 480-897-7255 843-626-3123 408-721-1635 847-390-4405 WEBSITE www.3m.com www.usa-assmann.com www.avxcorp.com www.fairchildsemi.com 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 * 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. 5) Connect a scope probe to the D+M and the D-M scope jacks. 6) Set the DC power supply to +6V. 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. 10) The green LED turns on, confirming that a connection between the master and slave has been made. 11) Turn on the function generator and set it to generate a 6MHz square wave, with an amplitude of 1.8VP-P. 12) Verify with the oscilloscope that a +3.3V differential signal is being received on the D+M and D-M lines.
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Table 1. Default Shunt Positions (Slave Driving Master)
JUMPER JU1 JU2 JU3 JU4 JU5 JU6 JU7 JU8 JU9 JU10 JU11 JU12 JU13 JU14 SHUNT POSITION ON ON OFF OFF 1-2 ON 1-2 2-3 1-2 2-3 2-3 1-2 2-3 2-3 DESCRIPTION 15k resistor on D- line enabled 15k resistor on D+ line enabled Driver disconnected from VPO line of master (U1) Driver disconnected from VMO line of master (U1) Secondary power supply set to 1.8V Secondary power supply connected to circuit Master receive selected Internal 1.5k resistor is disconnected from the master D+ line Master inputs in differential mode Master suspend disabled Slave transmit selected Internal 1.5k resistor is disconnected from the slave D+ line Slave inputs in single-ended mode Slave suspend disabled
Master Driving Slave
Required equipment: * DC power supply capable of supplying between +6V and +9V at 1A * Oscilloscope (>100MHz) * Two 3.5mm scope probes 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:
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MAX3345E Evaluation Kit
1) Ensure that the jumpers are in their default positions. See Table 2 for shunt positions. 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. 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.
Evaluates: MAX3344E/MAX3345E
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).
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 JU1 JU2 JU3 JU4 JU5 JU6 JU7 JU8 JU9 JU10 JU11 JU12 JU13 JU14 SHUNT POSITION ON ON OFF OFF 1-2 ON 1-2 2-3 1-2 2-3 2-3 1-2 2-3 2-3 DESCRIPTION 15k resistor on D- line enabled 15k resistor on D+ line enabled Driver disconnected from VPO line of master (U1) Driver disconnected from VMO line of master (U1) Secondary power supply set to 1.8V Secondary power supply connected to circuit Master receive selected Internal 1.5k resistor is disconnected from the master D+ line Master inputs in differential mode Master suspend disabled Slave transmit selected Internal 1.5k resistor is disconnected from the slave D+ line Slave inputs in single-ended mode Slave suspend disabled
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 JU3 JU4 JU3 JU4 JU3 JU4 JU3 JU4 JU3 JU4 SHUNT POSITION OFF OFF OFF 2-3 OFF 1-2 ON 1-2 ON 2-3 DESCRIPTION Driver is disconnected from circuit VPO is left for the user to drive, VMO is grounded Invalid jumper setting Driver is operating in differential mode Driver is operating in single-ended mode
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MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
Table 4. 1.8V/3.3V Power-Supply Jumper
JUMPER JU5 JU5 JU6 SHUNT POSITION 1-2 2-3 ON DESCRIPTION Output voltage is +1.8V Output voltage is +3.3V Power supply connected to circuit Power supply disconnected from circuit. NOTE: User must supply power through the user pads marked VUP and GND. JUMPER JU9 JU9 JU13 JU13
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
SHUNT POSITION 1-2 2-3 1-2 2-3 DESCRIPTION Master inputs (VPO and VMO) differential mode Master inputs (VPO and VMO) single-ended mode Slave inputs (VPO and VMO) differential mode Slave inputs (VPO and VMO) single-ended mode
JU6
OFF
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 JU1, JU2 JU1, JU2 SHUNT POSITION ON OFF DESCRIPTION Master resistive load enabled Master resistive load disabled
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 1-2 2-3 1-2 2-3 DESCRIPTION 1.5k resistor is connected to the master D+ line 1.5k resistor is disconnected from the master D+ line 1.5k resistor is connected to the slave D+ line (full-speed operation) 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.
JU8 JU8 JU12 JU12
Note: The MAX3345E is not compatible with low-speed devices.
Table 6. Suspend Jumper Settings
JUMPER JU10 JU10 JU14 JU14 SHUNT POSITION 1-2 2-3 1-2 2-3 DESCRIPTION Suspend function on master enabled Suspend function on master disabled Suspend function mode on slave enabled Suspend function mode on slave disabled
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.
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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 JU7 JU7 JU11 JU11 SHUNT POSITION 1-2 2-3 1-2 2-3 DESCRIPTION Master receive selected Master transmit selected Slave receive selected Slave transmit selected
16-Pin Data Connectors J1, J3
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.
Table 10. J1, J3 Data Connector
PIN 1 2 3 4 5 SIGNAL SUSPEND RCV VPI VMI USB_DET I/O I O O O 0 = normal operation 1 = suspend operation Receiver output (single-ended) Single-ended output (D+) Single-ended output (D-) USB detect: 0 = device is not connected to the USB bus 1 = device is connected to the USB bus Mode: 0 = VPO/VMO operate as single-ended inputs 1 = VPO/VMO operate as differential inputs Enumerate: 0 = 1.5k resistor disconnected from the D+ line 1 = 1.5k resistor connected to the D+ line (full-speed operation) Single-ended input (D+) Single-ended input (D-) Output enable: 0 = transmitter enabled 1 = transmitter disabled +1.8V/+3.3V on-board power supply Ground FUNCTION
O
6
MODE
I
7 8 9 10 11 12-16
ENUMERATE VPO VMO OE VL GND
I I I I -- --
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MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
VUP D-M
J1-12 J1-13 J1-14 J1-15 J1-16
J1-1
1 JU10 2 3
6
SUSP
D-
12 R3 23.7 1% JU1 +5V
J2-2
J1-2 J1-3 J1-4 J1-5 VUP 1 JU9 2 3 VUP 1 JU8 2 VUP J1-11 3
1 7 8 16
RCV VPI VMI USB_DET VCC 10 C7 1.0F 5V R1 15k
J2-1
J2-4
J1-6
3
MODE
U1
MAX3345E
9 ENUM
D+
13 R4 23.7 1% JU2 D+M
J2-3 USB A
J1-7
15 C5 1.0F VPO 2 4 VUP 1 JU7 2 3 VMO
VL GND 11
R2 15k
J1-8 J1-9
VPO VMO VTRM 14 C6 1.0F
J1-10 SIP-16P
5
OE
Figure 1. MAX3345E EV Kit Schematic (Sheet 1 of 3)
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MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
VUP
D-S
J3-12 J3-13 J3-14 J3-15 J3-16
J3-1
1 JU14 2 B2 3
SUSP
D-
B4 R5 23.7 1%
J4-2
J3-2 J3-3 J3-4 USB_DET J3-5 VUP 1 JU13 2 3 VUP
D2 A1 A2 C3
RCV VPI VMI USB_DET VCC A3 C10 1.0F +5V J4-1
J4-4
J3-6
C2
MODE
U2
J3-7 VUP J3-11
1 JU12 2 B3 3
MAX3345E
ENUM
D+
C4 R6 23.7 1% D+S
J4-3 USB B
D3 C8 1.0F D1 C1 VUP 1 JU11 2 3
VL GND A4
J3-8 J3-9
VPO VMO VTRM D4 C9 1.0F
J3-10 SIP-16P
B1
OE
Figure 1. MAX3345E EV Kit Schematic (Sheet 2 of 3)
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MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
+5V VSUP C1 10mF GND 20V 4 1 OFF IN OUT 8 C2 10mF 10V GND SET GND 7 USB_DET 5 5 VUP OUT 8 C4 10mF 10V 7 VUP 6 R8 VUP 374kW 1 1% 3 21 JU5 R9 750kW 1% 2 GND OUTPUT 3 1 2 3 A1 GND A2 U6 VCC Y1 Y2 5 6 4 1 JU4 2 3 +5V OE Y1 VCC 4 C11 1.0mF NC7SZ14 2 5 U5 3 VUP C13 1.0mF 2 JU3 C12 1.0mF JU6 VUP VUP 1 2 3 N.C. A GND Y 4 VCC 5 C14 1.0mF
+5V
D1
U3
MAX603
2 3 GND GND
U7
R7 620W
INVERTER-UHS-NC7SZ05
1 C3 10mF 20V 2
IN
GND
GND
U4
GND
MAX604
3 GND GND
VPO
4
OFF
SET
5
VMO
BUFFER-DUAL-NC7WZ17
Figure 1. MAX3345E EV Kit Schematic (Sheet 3 of 3)
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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
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MAX3345E Evaluation Kit Evaluates: MAX3344E/MAX3345E
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.

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