DEMO MANUAL DC590B USB Serial Controller for Linear Technology QuikEval Demo Boards Description Demonstration circuit 590B is a USB-based controller with generic serial peripheral interface (SPI) and inter integrated circuit (I2C) ports. It is designed to mate with Linear Technology’s family of QuikEval™ demonstration boards. The demo board is fully isolated from the host PC’s ground, and in many cases no external power source is required. The evaluation software automatically detects which demo board is connected and loads the appropriate control screen. The QuikEval system provides a quick and easy way to evaluate the performance of a wide variety of Linear Technology’s products, including ADCs, DACs, SMBus power control products and many others. Design files for this circuit board are available at http://www.linear.com/demo L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and QuikEval and PScope are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Board Photo DO NOT CONNECT USB CABLE TO HOST PC DEMO CIRCUIT UNDER EVALUATION SELECT ISOLATED SUPPLY VOLTAGE (2.7V, 3.3V, 5.0V, OR EXTERNAL CONNECT EXTERNAL 10V TO 12V SUPPLY ONLY IF JP5, ISO IS SET TO OFF (SEE TEXT) CONNECT 2.7 TO 5V LOGIC SUPPLY ONLY IF VCCIO IS SET TO EXT (SEE TEXT) dc590b F01 DO NOT CONNECT ISOLATED GROUND ISOLATED POWER SUPPLY (SHOWN IN OFF POSITION) Figure 1. DC590B Connection Diagram dc590bf 1 DEMO MANUAL DC590B Quick Start Procedure For proper equipment setup, use the following procedure: 1. Do NOT plug in DC590B before running the installation program. 2. Download the QuikEval installation program from http://www.linear.com/software/ 3. Run the QuikEval installation program and follow the onscreen instructions. NOTE: The QuikEval demo software requires a PC that is running Windows XP (or later), and has an available USB port. Each demonstration board also comes with a Quick Start guide similar to this one. For usage details relevant to a particular circuit, refer to its Quick Start Guide. To update the software (requires Internet connection): n Choose Update from the Tools menu. This automatically updates the main program and drivers for individual demo circuits. To view the DC590B Demo Manual: n Choose Quick Start Guide from the View menu. 4. Connect the demonstration circuit to be evaluated to the DC590B using the supplied 14-conductor ribbon cable. The demo software detects the circuit and starts the appropriate control screen. dc590B F02 Figure 2. QuikEval Software dc590bf 2 DEMO MANUAL DC590B Connections to the DC590B Figure 1 shows the connections to the DC590B. In most cases, DC590B and the demonstration circuit under evaluation can operate from available USB power, and thus require nothing more than a USB connection to the host PC and a ribbon connecting DC590B to the demo circuit under evaluation. The DC590B offers several other power options, as described in the following text. Isolated Supply Options An LT3439 low noise switching power supply provides isolated power to the demonstration circuit under evaluation and to the isolation circuitry. This is adequate in many cases, however an external power supply is recommended to reduce the load on the host computer’s USB port or to reduce power supply noise in the circuit under test. The LT3439 switching power supply is enabled by default but may be disabled by moving jumper JP5 (ISO, to the left) to the OFF position. This allows the isolated side of the board and the demonstration circuit under evaluation to be powered separately. This is recommended when testing precision components such as high resolution ADCs and DACs. After moving JP5 ISO to the OFF position, apply a clean, regulated power supply from 7V to 10V to the V+ and AGND turret posts. Isolated Digital Supply The signal levels on the digital interface are determined by the VCCA voltage. The onboard regulator can be set to 5V, 3.3V and 2.7V, by installing JP6 in the appropriate position (remove jumper for 2.7V). Selecting EXT shuts the regulator down, and an external supply between 2.7V and 5V must be applied to the VCCA turret post. LED Indicators Two LED indicators are provided. The ISO PWR LED is lit when either the onboard switching power supply is running or external power is applied to the isolated side of the board. The COMMAND LED indicates that a command has been sent to the board by the host PC and is waiting to be executed. The LED may not appear to be blinking in some cases, as the duty cycle may be very short. Jumper Summary Some jumpers on the DC590B board are for future use and MUST be left in the default positions. JUMPER POSITION FUNCTION JP1 PROG Microcontroller in-circuit programming header. Do NOT install jumper; make no connections JP2 MODE Do NOT install jumper; make no connections JP3 Watchdog Enable Do NOT install jumper; make no connections JP4 EE Jumper MUST be in the EN position JP5 SW (Right-hand side) MUST be in the ON Position. See Connections section. ISO (Left-hand side) Controls the isolated supply. See Connections section. VCCA Control See Connections section JP6 The +5V turret is the digital supply for the isolated portion of DC590B. Do not draw current from this point. dc590bf 3 DEMO MANUAL DC590B Troubleshooting Guide PROBLEM SOLUTION The DC590B is plugged in, but the QuikEval screen still says “USB Serial Controller Not Connected” The most likely cause is improper installation of the USB drivers, which causes Windows to recognize DC590B as an “Unknown Device.” Open the Windows Control Panel, open “System” and click the “Device Manager” tab. Open the “Other Devices” item and look for USB SERIAL CONTROLLER. Select this item and click the remove button. Unplug the DC590B, re-install the QuikEval software, and follow the onscreen instructions. Verify that the demo board is properly powered up. This Demo Manual lists the basic power connections to the DC590B. Some demo boards may have additional requirements; refer to the demo board’s Quick Start guide for details. Contact Linear Technology Applications Engineering. The demo board software loads properly but will not run, or displays “Device Not Accessible” errors After connecting the demo board to DC590B with the supplied 14-pin ribbon cable, QuikEval software still displays “Evaluation Board is Not Connected” dc590bf 4 DEMO MANUAL DC590B Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER 1 27 C1-C5, C8-C10, C12-C19, C23, C26, C27, C30-C37 CAP., X5R, 0.1µF, 10V, 10%, 0402 AVX, 0402ZD104KAT 2 1 C6 CAP., X7R, 2200pF, 100V, 10%, 0402 AVX, 04025C222KAT2A 3 1 C7 CAP., NPO, 100pF, 50V, 10%, 0402 AVX, 04025A101KAT2A 4 7 C11, C21, C24, C38, C40, C41, C42 CAP., X5R, 10µF, 6.3V, 20%, 0805 TDK, C2012X5R0J106M 5 1 C20 CAP., X5R, 100µF, 6.3V, 20%, 1210 TDK, C3225X5R0J107M 6 3 C22, C28, C39 CAP., X7R, 0.01µF, 16V, 10%, 0402 AVX, 0402YC103KAT2A 7 1 C25 CAP., X7R, 330pF, 100V, 10%, 0402 AVX, 04025C331KAT2A 8 1 C29 CAP., X7R, 2.2nF, 1000V, 1206 AVX, 1206AC222KAT1A 9 2 C43, C44 CAP., NPO, 47pF, 50V, 10%, 0402 AVX, 04025A470KAT2A 10 2 D1,D2 DIODE, SCHOTTKY, SOT23 DIODES INC., BAT54S-7-F 11 7 E1, E2, E3, E4, E5, E6, E7 TESTPOINT, TURRET, 0.064" MILL-MAX, 2308-2-00-80-00-00-07-0 12 4 JP1, JP2, JP5, JP6 JMP, 2×3, 0.079" SAMTEC, TMM-103-02-L-D 13 0 JP3 JMP, 3-PIN, 1 ROW, 0.079" OPT. 14 1 JP4 JMP, 3-PIN, 1 ROW, 0.079" SAMTEC, TMM-103-02-L-S 15 0 JP7 JMP, 2-PIN, 1 ROW, 0.079" OPT. 16 4 SHUNTS ON JP4 (1 AND 2), SHUNT, 0.079" CENTER JP5 (1 AND 3, 2 AND 4), JP6 (3 AND 4) SAMTEC, 2SN-BK-G 17 0 J1 JMP, 2×20, 0.100" OPT. 18 0 J2 JMP, 2×7, 0.100" OPT. 19 1 J3 CON, USB-B, 4 PINS, SINGLE THR. HOLE MILL-MAX, 897-43-004-90-000 20 1 J4 HEADER, 2×7 PIN, 0.079" MOLEX, 87831-1420 21 5 LED1-LED5 LED, GND, 0603 LITE ON, LTST-C190KGKT 22 1 Q1 TRANS, NPN, MMBT3904, SOT23 DIODES INC., MMBT3904-7-F 23 2 Q2, Q5 XSTOR, N-CH, SOT23 VISHAY, 2N7002-T1-E3 24 1 Q4 MOSFET, N-CH, DS, SOT23 VISHAY, Si2306DS-T1-E3 25 1 RSENSE RES., CHIP, 0.1Ω, 1%, 0805 VISHAY, WSL0805R1000F 26 4 R1, R49, R57, R64 RES., CHIP, 49.9k, 1/16W, 1%, 0402 AAC, CR05-4992FM 27 5 R2, R11, R12, R13, R20 RES., CHIP, 475, 1/16W, 1%, 0402 AAC, CR05-4750FM 28 19 R3, R8, R9, R21, R27, R28, R30, R31, R33, R35, R39, R43-R48, R63, R68 RES., CHIP, 10k, 1/16W, 5%, 0402 AAC, CR05-103JM 29 7 R4, R6, R14, R17, R23, R24, R29 RES., CHIP, 22.1, 1/16W, 1%, 0402 AAC, CR05-22R1FM 30 13 R5, R15, R16, R18, R19, R22, R25, R51, R52, R56, R58, R59, R62 RES., CHIP, 1.5k, 1/16W, 5%, 0402 AAC, CR05-152JM 31 1 R7 RES., CHIP, 14k, 1/16W, 1%, 0402 AAC, CR05-1402FM 32 2 R10, R66 RES., CHIP, 102k, 1/16W, 1%, 0402 AAC, CR05-1023FM 33 1 R26 RES., CHIP, 6.34k, 1/16W, 1%, 0402 AAC, CR05-6341FM 34 1 R32 RES., CHIP, 2.21k, 1/16W, 1%, 0402 AAC, CR05-2211FM 35 4 R34, R36, R37, R40 RES., CHIP, 100, 1/16W, 5%, 0402 AAC, CR05-101JM 36 1 R38 RES., CHIP, 16.9k, 1/16W, 1%, 0402 VISHAY, CRCW040216K9FKED dc590bf 5 DEMO MANUAL DC590B Parts List ITEM QTY 37 8 REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER R41, R42, R50, R53, R54, R55, R60, R61 RES., CHIP, 4.99k, 1/16W, 1%, 0402 AAC, CR05-4991FM 38 1 R65 RES., CHIP, 26.7k, 1/16W, 1%, 0402 VISHAY, CRCW040226K7FKED 39 1 R67 RES., CHIP, 41.2k, 1/16W, 1%, 0402 AAC, CR05-4122FM 40 1 R69 RES., CHIP, 0, 1/8W, 1206 VISHAY, CRCW12060000Z0EA 41 1 SW1 SW, LIGHT TOUCH, EVQPPDA25 PANASONIC, EVQPPDA25 42 1 T1 XFMR, PA0510, TRANS-PA0510 PULSE, PA0510NLT 43 1 U1 I.C., PIC16LF877A-I/PT, QFP44 MICROCHIP, PIC16LF877A-I/PT 44 1 U2 I.C., LTC1799CS5#PBF, TSOT23-5 LINEAR TECHNOLOGY, LTC1799CS5#PBF 45 1 U3 I.C., LTC1726EMS8-2.5#PBF, MS8 LINEAR TECHNOLOGY, LTC1726EMS8-2.5#PBF 46 2 U6, U4 I.C., NC7SP17P5X, SC70-5 FAIRCHILD SEMI., NC7SP17P5X 47 1 U5 I.C., 74HC74PW, TSSOP14 PHILIPS SEMI., 74HC74PW 48 1 U7 I.C., FT245BL, LQFP32 FUTURE TECHNOLOGY, FT245BL 49 1 U8 I.C., 93LC46BT-I/OT, SOT23-6 MICROCHIP, 93LC46BT-I/OT 50 1 U9 I.C., LTC6905CS5-96#TRPBF, TSOT23-5 LINEAR TECHNOLOGY, LTC6905CS5-96#TRPBF 51 1 U10 I.C., LT1761ES5-3.3#TRPBF, SOT23-5 LINEAR TECHNOLOGY, LT1761ES5-3.3#TRPBF 52 1 U11 I.C., LT3439EFE#PBF, TSSOP16FE LINEAR TECHNOLOGY, LT3439EFE#PBF 53 1 U12 I.C., LTC4210-1CS6#PBF, TSOT23-6 LINEAR TECHNOLOGY, LTC4210-1CS6#PBF 54 2 U13, U17 I.C., 74VHC125MTC, TSSOP14 FAIRCHILD SEMI., 74VHC125MTCX 55 1 U14 I.C., OPTO-COUPLER, HCPL-092J-000E, SO16-NB AVAGO/AGILENT, HCPL-092J-000E 56 2 U15, U20 I.C., 74VHC4052MTC, TSSOP16 FAIRCHILD SEMI., 74VHC4052MTC 57 2 U23, U16 I.C., OPTO-COUPLER, MOCD207M, S08 FAIRCHILD SEMI., MOCD207M-NL 58 1 U18 I.C., LTC4302CMS-2#PBF, MS10 LINEAR TECHNOLOGY, LTC4302CMS-2#PBF 59 1 U19 I.C., LT1719CS6#TRPBF, SOT23-6 LINEAR TECHNOLOGY, LT1719CS6#TRPBF 60 1 U21 I.C., LT1761ES5-5#TRPBF, SOT23-5 LINEAR TECHNOLOGY, LT1761ES5-5#TRPBF 61 1 U22 I.C., LT1761ES5-SD#PBF, SOT23-5 LINEAR TECHNOLOGY, LT1761ES5-SD#PBF 62 0 VR1 RPOT, 10k, 1 TURN, RPOT-3313J OPT. 63 4 MH1-MH4 STAND-OFF, NYLON (SNAP-ON), 0.25" TALL KEYSTONE, 8831 (SNAP-ON) dc590bf 6 A B C EN DIS 3 2 1 Q2 2N7002 OPT JP3 WD C7 100PF C6 2200PF C5 0.1 7 8 1 5 VCC 8 9 WT RT VCC 3 C4 0.1 2 VCC25 1 VCC3 GND 4 10 Q Q 5 U3 LTC1726EMS8-2.5 6 5 6 11 Q Q 3 2 1 DIV OUT CLK 25 RE0/BOARD_DETECT 3 4 2. INSTALL SHUNTS ON JP4, JP5, AND JP6 AS SHOWN. 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. RA5 RA4 RA3 RA2 RA1 RA0 RE0/RD RE1/WR RE2/CS 2 2 4 10M CUSTOMER NOTICE R17 22.1 CONTRAST MODE JP2 HD2X3-079 5 6 3 4 1 2 VCC CW 3 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. USB_RXF# 2 SCALE = NONE MARK T. J1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 HD2X7-100 OPT J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 HD2X20-100 OPT DATE: N/A SIZE DESCRIPTION PIC_DB5 PIC_DB7 PIC_DB0 RA5/LCD_EN VCC 10M PIC_DB7 PIC_DB6 PIC_DB5 PIC_DB4 PIC_DB3 PIC_DB2 PIC_DB1 PIC_DB0 RB2 RB1 RB0 RC7/RX RC6/TX RC5/MOSI/SDAO RC4/MISO/SDAI RC3/SCK/SCI RC2 RC1 RC0 RC1 LED3 GRN R12 475 VCC Tuesday, May 24, 2011 1 SHEET 1 DEMO CIRCUIT 590B USB SERIAL CONTROLLER II IC NO. RC0 LED4 GRN R13 475 VCC RE2/I2C-SPI# RE1/AUX-MAIN# RE0/BOARD_DETECT USB_TXE# USB_WR_CLK USB_RXF# USB_RD_CLK# RA4/ISO_PWR_SHDN/ PIC_DB7 PIC_DB6 PIC_DB5 PIC_DB4 PIC_DB3 PIC_DB2 PIC_DB1 PIC_DB0 3 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only R19 1.5K R16 1.5K RC2 LED2 GRN DATE 05-24-11 RC5/MOSI/SDAO RC4/MISO/SDAI RC3/SCK/SCI RB5/CS MARK T. APPROVED LED2-LED4 LTST-C190KGKT (LITE-ON) R11 475 VCC PRODUCTION 1 REVISION HISTORY TECHNOLOGY 3 2 TITLE: SCHEMATIC PIC_DB4 PIC_DB6 PIC_DB1 VCC KT REV ECO COMMAND LED1 LTST-C190KGKT (LITE-ON) GRN R2 475 VCC 2 APPROVALS R18 1.5K R15 1.5K VR1 10K OPT 2 R1 49.9K LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. U6 NC7SP17P5X VCC C9 0.1 1 2 3 PROG JP1 HD2X3-079 5 6 3 4 1 2 R21 10K VCC R5 1.5K SYS_10MHZ PIC_DB7 PIC_DB6 PIC_DB5 PIC_DB4 PIC_DB3 PIC_DB2 PIC_DB1 PIC_DB0 5 4 3 2 41 40 39 38 R14 22.1 RC7/RX RC6/TX RC5/MOSI/SDAO RC4/MISO/SDAI RC3/SCK/SCI RC2 RC1 RC0 1 44 43 42 37 36 35 32 4 RB7 RB6 RB5/CS RB4 RB3 RB2 RB1 RB0 17 16 15 14 11 10 9 8 U4 NC7SP17P5X VCC C8 0.1 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 RA5/LCD_EN RA4/ISO_PWR_SHDN/ USB_TXE# USB_WR_CLK USB_RXF# USB_RD_CLK# 24 23 22 21 20 19 Figure 3. DC590B USB Serial Controller 26 USB_RD_CLK# OSCIN U1 PIC16LF877A-I/PT RX/RC7 TX/RC6 MOSI/RC5 MISO/RC4 SCK/RC3 RC2 18 MCLR RC1 RC0 RE1/AUX-MAIN# 2 VPIC PGD/RB7 PGC/RB6 RB5 RB4 RB3 31 OSCOUT RB2 RB1 INT/RB0 27 R6 22.1 R4 22.1 30 C2 0.1 RE2/I2C-SPI# U5B 74HC74PW D 4 5 SYSTEM_RST# SET GND V+ U2 LTC1799CS5 C1 0.1 NOTES: UNLESS OTHERWISE SPECIFIED CLK D R9 10K R3 10K 3 Q1 MMBT3904 2 R8 10K C3 0.1 VCC 12 USB_RXF# U5A 74HC74PW VCC WDI R10 102K SW1 EVQPPDA25 1 2 R7 14K RST PRE 1 28 VDD VSS 6 D 3 2 14 VCC 7 VDD VSS 29 VCCA 14 VCC GND 7 CLR 13 4 PRE CLR 1 GND 7 1 3 5 3 5 3 - + 3 - + 4 - + - + 5 A B C D DEMO MANUAL DC590B Schematic Diagram dc590bf 7 A B C GND VCC 5VSW E3 E2 E1 5 C26 0.1 C21 10,6.3V 0805 USB5V RA4/ISO_PWR_SHDN/ USB5V C18 0.1 USB_RD_CLK# USB_WR_CLK USB_TXE# USB_RXF# 1 3 6 4 5 VCC 5VSW CT ON VCC CG VSEN U12 LTC4210-1CS6 0805 RSENSE 0.1 OHM SET DIV GND V+ OUT C27 0.1 3 2 1 VCC 48MHZ U9 LTC6905CS5-96 R28 10K 4 5 3 USBDP USBDM 3 2 1 SHDN GND VIN BYP OUT U10 LT1761ES5-3.3 HD1X2-079 JP7 OPT 4 5 USB5V C22 0.01 OFF R33 10K R25 1.5K R24 22.1 R23 22.1 3 VPIC R27 10K R69 0 1206 DI CS CLK 1 3 2 7 6 5 11 R38 16.9K C19 0.1 C20 100,6.3V 1210 R32 2.21K RT CT SYNC SHDN CUSTOMER NOTICE C25 330PF DO VSS VCC U8 93LC46BT-I/OT R35 10K 4 5 6 C44 47PF J3 1 2 3 4 5 6 USB-B MILL-MAX 1 2 3 4 5 6 C15 USB5V 0.1 RSL COLB COLA 3 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. R39 10K 2 SCALE = NONE MARK T. KT DATE: N/A SIZE 3 3 2 1 1 D2 BAT54S V+ C23 0.1 V+ C24 10,6.3V 0805 1 SHEET 2 DEMO CIRCUIT 590B Tuesday, May 24, 2011 IC NO. 3 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only 1 USB SERIAL CONTROLLER II TECHNOLOGY 1206 C29 2.2NF,1000V 1 8 D1 V+ BAT54S 2 ISOLATED T1 PA0510 TITLE: SCHEMATIC 3 6 4 5 NON-ISOLATED 2 APPROVALS 4 14 3 U11 LT3439EFE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. C16 0.1 USB5V C43 47PF 3 Figure 4. DC590B USB Serial Controller 2. INSTALL SHUNTS ON JP4, JP5, AND JP6 AS SHOWN. 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. 4 R37 100 JP5 5VSW HD2X3-079 1 2 3 4 5 6 C42 10,6.3V 0805 2 Q5 2N7002 JP4 EE 1 EN 2 3 DIS HD1X3-079 C17 0.1 C11 10,6.3V 0805 VCC ON 31 6 2 1 32 5 7 8 U7 FT245BM C13 0.1 USB5V NOTES: UNLESS OTHERWISE SPECIFIED C28 0.01 R40 100 R36 100 2 Q4 Si2316DS 5VSW 10K R30 R31 10K 22.1 R29 D7 D6 D5 D4 D3 D2 D1 D0 4 R20 VCC 475 16 15 RD# RSTOUT# 14 WR 12 TXE# RXF# EECS 27 XTIN EESK 28 XTOUT EEDATA 11 3V3OUT 10 SI/WU 4 PWREN# RST# TEST 18 19 20 21 22 23 24 25 C14 0.1 C12 0.1 C10 0.1 30 AVCC AGND 29 PIC_DB7 PIC_DB6 PIC_DB5 PIC_DB4 PIC_DB3 PIC_DB2 PIC_DB1 PIC_DB0 1 3 VCC 26 VCC 13 VCCIO 9 17 GND GND D GND 2 1 SW ISO 13 VIN 8 10 17 GND GND 16 1 PGND PGND 5 A B C D DEMO MANUAL DC590B Schematic Diagram dc590bf Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. A B C D RE0/BOARD_DETECT RE1/AUX-MAIN# RE2/I2C-SPI# RB5/CS RC3/SCK/SCI RC5/MOSI/SDAO RC4/MISO/SDAI 5 SPARE R61 4.99K VCC R60 4.99K VCC R52 1.5K VCC R51 1.5K VCC C32 0.1 VCC 5 6 7 8 4 3 2 1 1 2 3 4 5 6 7 8 E2 A2 C2 A1 C1 A2 C2 COL1 E1 COL2 E2 U23 MOCD207M E1 COL2 C1 COL1 A1 U16 MOCD207M VDD1 VDD2 GND1 GND2 IN1 OUT1 IN2 OUT2 IN3 OUT3 OUT4 IN4 NC NC GND1 GND2 U14 HCPL-092J 4 3 2 1 5 6 7 8 16 15 14 13 12 11 10 9 4 V+ OUT SHDN +5V U17A 74VHC125MTC 3 3 2 1 2 12 C37 0.1 +IN V- -IN 12 X0 14 X1 15 X2 11 X3 1 Y0 5 Y1 2 Y2 4 Y3 6 INH 10 A 9 B 7 VEE U19 LT1719CS6 Y X U17D 74VHC125MTC 11 C36 0.1 ISO_SPARE +5V 5 6 3 13 R56 1.5K R58 1.5K 4 3 13 Y X +5V +5V R68 10K VCCA 9 5 VCCA 3 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. HD2X3-079 2 SCALE = NONE MARK T. KT APPROVALS +5V AC AD V+ V+ 1 2 3 4 5 3 2 1 3 2 1 DATE: N/A SIZE BYP OUT AUX_SDA AUX_SCL +5V ADJ OUT 4 5 4 5 10 9 8 7 6 V+ R59 1.5K R54 4.99K AGND +5V VCCA V+ 1 2 V+ 5V 6 4 CS 7 SCK/SCL 5 MOSI/SDA MISO 10 9 EEVCC 11 EESDA 12 EESCL 14 EEGND NC R34 100 R26 6.34K R67 41.2K R64 49.9K C41 10,6.3V 0805 ISO PWR LED5 LTST-C190KGKT (LITE-ON) GRN VCCA +5V I2C ADDR: 4302 @ O x CO EE @ O x AO 1 SHEET 3 DEMO CIRCUIT 590B Tuesday, May 24, 2011 IC NO. USB SERIAL CONTROLLER II 3 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only R66 102K E7 E6 E5 E4 J4 HD2X7-079-MOLEX +5V VCCA 1 C40 10,6.3V 0805 R65 26.7K C39 0.01 +5V +5V VCCA R53 4.99K VCCA VCCA TECHNOLOGY SHDN GND IN U22 LT1761ES5-SD SHDN GND VIN U21 LT1761ES5-5 SDAIN SDAOUT SCLIN SCLOUT CONN VCC ADDR VCC2 GND GPIO1 U18 LTC4302CMS-2 TITLE: SCHEMATIC R63 10K V+ VCCA ISO_CS ISO_SCK/SCL ISO_SDA/MOSI MISO AUX I2C LINES ARE PULLED LOW TO FACILITATE BOARD DETECTION (PULL UP ON STAMP BOARD) (5K PULL UPS ARE ON STAMP BOARD) SCK MOSI MISO 12 U13D 74VHC125MTC 11 VCCA CS C38 10,6.3V 0805 5 EXT 3 5V 1 3.3V R42 4.99K REMOVE=2.7V 6 4 2 JP6 VCCIO R57 49.9K U17C 74VHC125MTC 8 R41 4.99K VCCA R49 49.9K U17B 74VHC125MTC 6 U13C 74VHC125MTC 8 U13B 74VHC125MTC 6 VCCA 5V TO VCCA TRANSLATION U13A 74VHC125MTC 3 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. CUSTOMER NOTICE 12 X0 14 X1 15 X2 11 X3 1 Y0 5 Y1 2 Y2 4 Y3 6 INH 10 A 9 B 7 VEE U20 74VHC4052MTC C35 0.1 R48 10K 9 5 2 C30 0.1 2 14 13 7 14 7 1 Figure 5. DC590B USB Serial Controller 2. INSTALL SHUNTS ON JP4, JP5, AND JP6 AS SHOWN. 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. C34 0.1 LOW=MAIN, HI=AUX LOW=SPI, HI=I2C R43 R44 R45 R46 10K 10K 10K 10K +5V R47 10K SPI MODE - EN/ PULLED LOW, DATA TO INPUT I2C MODE - INPUT PULLED LOW, DATA TO EN/ VCCA U15 74VHC4052MTC C31 +5V 0.1 VHC125 LOGIC: NOTES: UNLESS OTHERWISE SPECIFIED 1.5K R62 1.5K R55 4.99K +5V R50 4.99K C33 0.1 R22 +5V +5V +5V ISOLATED 16 VCC GND 8 3 QUICKEVAL CONNECTOR 7 14 4 7 14 10 14 4 7 14 10 7 3 8 GND 13 GND GND NON-ISOLATED 4 16 VCC GND 8 13 14 7 14 1 7 - + 5 A B C D DEMO MANUAL DC590B Schematic Diagram dc590bf 9 DEMO MANUAL DC590B DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation dc590bf 10 Linear Technology Corporation LT 0912 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2012