DC590B - Demo Manual

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
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