MAX9597EVKIT [MAXIM]

Lead-Free and RoHS Compliant;


型号：	MAX9597EVKIT
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	Lead-Free and RoHS Compliant
文件：	总16页 (文件大小：592K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

19-4275; Rev 0; 9/08

MAX9597 Evaluation Kit

Evluates:MAX597

General Description

Features

o Windows 2000/XP/Vista (32-Bit)-Compatible

The MAX9597 evaluation kit (EV kit) is an assembled

and tested PCB used to evaluate the MAX9597 single

SCART interface. It routes audio, video, and control sig-

nals between a set-top box decoder chip and the TV

SCART connector. The on-board microcontroller, which

is connected to the PC through the universal serial bus

Software

o TV SCART Connector

o On-Board Microcontroller to Generate I C

Commands

(USB) port, acts as the I C master.

o Easy-to-Use, Menu-Driven Software

o USB-PC Connection (Cable Included)

o Lead-Free and RoHS Compliant

The EV kit also includes Windows^®2000/XP/Vista -

compatible software that provides a simple user inter-

face for exercising the features of the MAX9597. The

program is menu driven and offers a graphical user

interface (GUI) complete with control buttons. The EV

kit comes with the MAX9597CTI+ installed.

Ordering Information

PART

TYPE

MAX9597EVKIT+

EV Kit

+Denotes lead-free and RoHS compliant.

Component List

DESIGNATION QTY

DESCRIPTION

DESIGNATION QTY

DESCRIPTION

Not installed, 2 x 5-pin JTAG header

5-pin header

C1, C12, C14,

10µF 10ꢀ, 16V X5R ceramic

capacitors (0805)

Murata GRM21BR61C106K

JU1

C31, C32, C36,

C43, C51

JU2, JU3, JU4

3-pin headers

22pF 5ꢀ, 50V C0G ceramic

capacitors (0603)

Murata GRM1885C1H220J

Ferrite bead (0603)

TDK MMZ1608R301A

C2, C3

USB type-B right-angle

PC-mount receptacle

0.033µF 10ꢀ, 25V X7R ceramic

capacitor (0603)

TDK C1608X7R1E333K

SCART connector

(side-entry PCB mount)

KYCON K-SCARTX-021

C5–C10,

C17–C28, C33,

C34, C37–C42

0.1µF 10ꢀ, 16V X7R ceramic

26 capacitors (0603)

TDK C1608X7R1C104K

RCA phono jacks

(side-entry PCB mount), white

P3, P4, P5

P6, P7, P8

1µF 10ꢀ, 16V X5R ceramic

capacitors (0603)

TDK C1608X5R1C105K

C11, C13, C29,

C30

RCA phono jacks

(side-entry PCB mount), red

10pF 5ꢀ, 50V C0G ceramic

capacitors (0603)

Murata GRM1885C1H100J

R1, R2

27Ω 5ꢀ resistors (0603)

1.5kΩ 5ꢀ resistors (0603)

470Ω 5ꢀ resistor (0603)

2.2kΩ 5ꢀ resistor (0603)

10kΩ 5ꢀ resistors (0603)

169kΩ 1ꢀ resistor (0603)

100kΩ 1ꢀ resistor (0603)

C15, C16

R3, R22, R23

C35, C44–C50

Not installed, capacitors (0603)

100V/200mA ultra-fast diodes

(SOT23)

Central Semiconductor CMPD7000

LEAD FREE

R6, R36, R42

D1–D8

ENC_B_IN,

ENC_G_IN,

ENC_R/C_IN,

ENC_Y/CVBS_IN

Not installed, resistors—shorted by

PCB trace (0402)

R9–R13

75Ω BNC female jacks, 4-pin, 0.25in

spacing (top mount)

Windows and Windows Vista are registered trademarks of Microsoft Corp.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX9597 Evaluation Kit

Component List (continued)

DESIGNATION QTY

DESCRIPTION

DESIGNATION QTY

DESCRIPTION

Adjustable output LDO regulator

(5 SC70)

Maxim MAX8512EXK+

R14–R21,

R28–R35, R54,

R55

18 75Ω 5ꢀ resistors (0603)

R24–R27, R37,

R38, R39, R43,

R44, R45, R50,

R51

UART-to-USB converter (32 TQFP)

FTDI FT232BL

12 0Ω 5ꢀ resistors (0603)

93C46 type 3-wire EEPROM (8 SO)

Atmel AT93C46A-10SU-2.7

R40, R41,

R46–R49, R52,

R53

16MHz crystal (HCM49)

Hong Kong X’tals

SSM1600000E18FAF

Not installed, resistors (0603)

Single SCART interface

(28 TQFN-EP*)

Maxim MAX9597CTI+

6MHz crystal (HCM49)

Hong Kong X’tals SSL600000E18FAF

—

Shunts

Microcontroller (68 QFN-EP*)

Maxim MAXQ2000-RAX+

USB high-speed A-to-B cables,

5ft (1.5m)

LDO regulator (5 SC70)

Maxim MAX8511EXK25+

Evluates:MAX597

PCB: MAX9597 Evaluation Kit+

*EP = Exposed pad.

Component Suppliers

SUPPLIER

Central Semiconductor Corp.

Hong Kong X’tals Ltd.

KYCON, Inc.

PHONE

WEBSITE

631-435-1110

852-35112388

408-494-0330

770-436-1300

847-803-6100

www.centralsemi.com

www.hongkongcrystal.com

www.kycon.com

Murata Electronics North America, Inc.

TDK Corp.

www.murata-northamerica.com

www.component.tdk.com

Note: Indicate that you are using the MAX9597 when contacting these component suppliers.

MAX9597 EV Kit Files

FILE

DESCRIPTION

INSTALL.EXE

MAX9597.EXE

FTD2XX.INF

Installs the EV kit files on your computer

Application program

USB driver file

UNINST.INI

Uninstalls the EV kit software

USB driver installation help file

USB_Driver_Help.PDF

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MAX9597 Evaluation Kit

Evluates:MAX597

8) Connect the GNDV12 and GNDAUD pads together

at the board.

Quick Start

Recommended Equipment

Before beginning, the following equipment is needed:

9) Connect the GNDDIG and GNDAUD pads together

at the board.

•

MAX9597 EV kit (USB cable included)

10) Connect the DVD composite video output to the

ENC_Y/CVBS_IN input of the MAX9597 evaluation kit.

Connect the DVD R, G, and B outputs to the

ENC_R/C_IN, ENC_G_IN, and ENC_B_IN inputs,

respectively. The video signals must be between 0

and 1V, approximately. If the video signals are not

between 0 and 1V, refer to Application Note 4028:

How to Level Shift Video Signals for DC-Coupled Video

Amplifiers/Filters, available at www.maxim-ic.com.

A user-supplied Windows 2000/XP/Vista PC with a

spare USB port

•

12V/100mA DC power supply (V12)

3.3V/250mA DC power supply (VVID)

3.3V/100mA DC power supply (VAUD)

DVD player with composite video, RGB video, left

audio, and right audio outputs

11) Connect the DVD left and right audio outputs to the

DL_INP and DR_INP inputs of the MAX9597 EV kit,

respectively. The ENC_INL+ and ENC_INR+ expect

Note: In the following sections, software-related items

are identified by bolding. Text in bold refers to items

directly from the EV kit software. Text in bold and

underlined refers to items from the Windows operating

system.

the incoming audio signals to be 0.5V

full scale

RMS

and to be centered around ground. Most of the

audio output signals from DVD players are 2V

RMS

Procedure

The MAX9597 EV kit is fully assembled and tested.

Follow the steps below to verify board operation.

Caution: Do not turn on the power supplies until all

connections are made.

If the DVD player has an audio volume control,

reduce the audio volume such that the full-scale

audio signal is ≤ 0.5V

. If the DVD player does

RMS

not have an audio volume control, replace R37 and

R43 with 30kΩ resistors. The audio signals are then

attenuated by a factor of 4 before being presented

to ENC_INL+ and ENC_INR+. Most incoming audio

signals are centered around ground. If not, add a

10µF capacitor in series with the audio source.

1) Visit www.maxim-ic.com/evkitsoftware to down-

load the latest version of the EV kit software,

9597Rxx.ZIP. Save the EV kit software to a tempo-

rary folder and uncompress the ZIP file.

12) Connect a TV to the TV (P2) SCART connector.

2) Install the EV kit software on your computer by run-

ning the INSTALL.EXE program inside the tempo-

rary folder. The program files are copied and icons

are created in the Windows Start | Programs

menu.

13) Connect the USB cable from the PC to the EV kit

board. A New Hardware Found window pops up

when installing the USB driver for the first time. If

you do not see a window that is similar to the one

described above after 30s, remove the USB cable

from the board and reconnect it. Administrator privi-

leges are required to install the USB device driver

on Windows.

3) Verify that all jumpers (JU1–JU4) are in their default

positions, as shown in Tables 1 and 2. Do not turn

on the power supplies until all connections are

made.

14) Follow the directions of the Add New Hardware

Wizard to install the USB device driver. Choose the

Search for the best driver for your device option.

Specify the location of the device driver to be

C:\Program Files\MAX9597 (default installation

directory) using the Browse button. During device

driver installation, Windows might show a warning

message indicating that the device driver Maxim

uses does not contain a digital signature. This is not

an error condition and it is safe to proceed with

installation. Refer to the USB_Driver_Help.PDF doc-

ument included with the software for additional

information.

4) Connect the 12V/100mA DC power supply to the

V12 and the GNDV12 pads on the MAX9597 EV kit

board.

5) Connect the 3.3V/250mA DC power supply to the

VVID and the GNDVID pads on the MAX9597 EV kit

board.

6) Connect the 3.3V/100mA DC power supply to the

VAUD and the GNDAUD pads on the MAX9597 EV

kit board.

7) Connect the GNDVID and GNDAUD pads together

at the board.

_______________________________________________________________________________________

MAX9597 Evaluation Kit

15) Turn on the power supplies.

The MAX9597 EV kit software splits and groups the

functions of the MAX9597 into two separate categories.

TV and Configuration control functions are accessed

by selecting the appropriate tab at the top left of the

MAX9597 EV kit software main window. The TV tab

sheet of the MAX9597 EV kit software is again split into

two sections (Video Control and Audio Control).

16) Start the EV kit software by opening its icon in the

Start | Programs menu. The EV kit software main

window appears, as shown in Figure 1. Observe as

the program automatically detects the address of

the MAX9597 and starts the main program.

Detailed Description of

Software

Click the POR Reset button to reset the MAX9597 reg-

isters and EV kit software to their power-on-reset con-

figuration.

User Interface

The user interface (Figure 1) is easy to operate. Use the

mouse, or press the tab key to navigate with the arrow

keys. Each of the buttons correspond to bits in the

command and configuration bytes. By pressing them,

TV Controls (Video/Audio)

The Video Control group box of the MAX9597 EV kit

software (Figure 1) allows the user to select functions,

such as Slow Switching and Fast Switching, by manip-

ulating the drop-down lists (refer to the MAX9597 IC data

sheet for a description of each of these functions).

the correct I C-compatible write operation is generated

to update the internal registers of the MAX9597. The

Interface group box indicates the current I C-compati-

The Audio Control group box of the MAX9597 EV kit

software allows the user to adjust various audio charac-

teristics of the TV output, such as Mute and Zero

Crossing Detector.

ble Device Address, Register Address Sent, and the

Data Sent/Received, for the last read/write operation.

This data is used to confirm proper device operation.

Evluates:MAX597

Table 1. Shunt Setting for SMBus/I C Address (JU1)

WRITE

ADDRESS

(HEX)

READ

ADDRESS

(HEX)

SHUNT

POSITION

DEV_ADDR

1-2*

1-3

1-4

1-5

VVID

SCL

R/W

0x96

0x98

0x94

0x9A

0x97

0x99

0x95

0x9B

GND

SDA

*Default position.

Table 2. MAX9597 EV Kit Jumper Description (JU2, JU3, JU4)

JUMPER

SHUNT POSITION

DESCRIPTION

1-2*

2-3

Connect to on-board SCL

JU2

Connect user-supplied SCL

Connect to on-board SDA

1-2*

2-3

JU3

Connect user-supplied SDA

Connect to on-board +3.3V supply

Connect user-supplied +3.3V

1-2*

2-3

JU4

*Default position.

_______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 1. MAX9597 EV Kit Software Main Window (TV Tab)

Full Power (POR) or Shutdown mode. A bias voltage

can also be applied at the R/C input of the encoder

(Chrominance Bias at ENC_R/C_IN). The EV kit soft-

ware checks to see if the slave is present every sec-

ond. Checking the Disable I2C Activity checkbox

stops activity between the microcontroller and the

MAX9597 when software is idle.

Configuration Control

Selecting the Configuration tab sheet (Figure 2) of the

MAX9597 EV kit software allows the user to adjust con-

figuration features of the MAX9597. Checking the

desired checkboxes in the Output Enable group box

enables selected outputs of the MAX9597. The

Operating Modes group box allows the user to select

Figure 2. MAX9597 EV Kit Software Main Window (Configuration Tab)

_______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 3. Example of a Simple SMBusReadByte Operation Using the Advanced User Interface

Advanced User Interface

Detailed Description of

There are two methods for communicating with the

MAX9597: through the normal user-interface main win-

Hardware

The MAX9597 EV kit is an assembled and tested PCB

that demonstrates the features of the MAX9597 single

SCART interface. It routes audio, video, and control sig-

nals between a set-top box decoder chip and the TV

SCART connector. All video connections are made

through 75Ω controlled-impedance traces. Connect a

TV to the corresponding TV SCART connector. The set-

top box decoder video connections are made through

the 75Ω BNCs with the ENC prefix. Audio signals from

the stereo audio DAC are connected to the white (P3,

P4, P5) and red (P6, P7, P8) RCA phono jacks.

dow or through the I C commands available by select-

ing Options | Interface (Advanced Users) from the

menu bar. A display pops up that allows the

SMBus™/I C-compatible protocols, such as Read Byte

and Write Byte, to be executed. The only SMBus/I C

compatible protocols used by the MAX9597 are:

• 1 - SMBusWriteByte(addr,cmd,data8)

• 4 - SMBusReadByte(addr,cmd) → data8

The combo and edit boxes accept numeric data in

hexadecimal and should be prefixed by 0x. See Figure

3 for an example of this tool.

Address Selection

Jumper JU1 sets the MAX9597 slave address. The

default address is 1001 011(r/w) (DEV_ADDR = VVID).

See Table 1 for a complete list of addresses.

In this example, the software is reading from device

address 1001011 (r/w) binary, and register address

0x00.

SMBus is a trademark of Intel Corp.

_______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

connect the chroma signal of the DVD S-video output to

the ENC_R/C_IN input. If the DVD player has an S-video

connector (4-pin DIN), then an S-video to BNC “Y” con-

nector cable can be used to break out the luma and

chroma signals separately. The video signals must be

between 0 and 1V, approximately. If the video signals

are not between 0 and 1V, see the previous section.

AC-Coupling of Incoming Video Signals

Most of the video DACs on set-top box chips generate

video signals between 0 and 1V. Therefore, the most

convenient connection between the set-top box chip and

the MAX9597 video inputs is a DC connection. If the

video DAC does not generate a video signal between 0

and 1V, or if the incoming video signals are from an

external source, then the video signal should be AC-

coupled through a 0.1µF capacitor. The internal transpar-

ent clamp or input bias circuit of the MAX9597 restores

the DC level of the video signal to the proper voltage,

such that the MAX9597 can process the signal properly.

Audio Lowpass Filter Circuits

The audio circuit is essentially a left audio path and a

right audio path, each with an independent op amp fol-

lowed by a gain-of-4 amplifier. The encoder (stereo

audio DAC) is the input source and the output goes to

the TV SCART connector (Figure 4).

If a chroma signal is AC-coupled into ENC_R/C_IN, the

input bias circuit should be activated by checking the

Chrominance Bias at ENC_R/C_IN checkbox. The

chroma signal does not have a sync pulse, so the

transparent sync-tip clamp circuit cannot set a chroma

signal to the correct DC level. If a red, composite, or

luma video signal is AC-coupled into ENC_R/C_IN,

leave the checkbox unchecked.

The full-scale output of the independent op amp is

0.5V

. The closed-loop gain of the op amp circuit

RMS

should be designed such that the resulting full-scale

output is 0.5V . The fixed, gain-of-4 amplifiers that

RMS

follow the independent op amps amplify the 0.5V

RMS

, which complies with the SCART standard.

RMS

The lowpass filter configurations shown in Figures 5

and 6 are recommended when connecting a stereo

audio DAC to the audio preamplifier (input amplifier) of

the MAX9597. The filter configuration helps eliminate

S-Video Signal Evaluation

Connect the luma signal of the DVD S-video output to

the ENC_Y/CVBS_IN input of the MAX9597 EV kit, and

ENC_INR+

ZERO-CROSS

DETECTOR

INPUT

OP AMP

AUD

ENC_INR-

ENC_INROUT

ENC_INL+

A = 4V/V

TV_OUTR

ZERO-CROSS

DETECTOR

INPUT

OP AMP

AUD

ENC_INL-

A = 4V/V

TV_OUTL

ENC_INLOUT

AUD

C1P

C1N

CHARGE

PUMP

CPV

MAX9597

Figure 4. MAX9597 Audio Section Functional Diagram

_______________________________________________________________________________________

MAX9597 Evaluation Kit

the switching noise caused by the audio DAC. The cor-

ner frequency of the filter configuration should be set

above the maximum 20kHz audio frequency and below

the sampling frequency of the DAC. Refer to the

MAX9597 IC data sheet for frequency responses of the

filter configurations that are shown in Figures 5 and 6.

3.01kΩ

PCM1742

DAC

INC_INL+

10µF

604Ω

6.04kΩ

ENC_INL-

LEFT

1.2nF

3.01kΩ

390pF

MAX9597

ENC_INLOUT

3.01kΩ

INC_INR+

ENC_INR-

10µF

604Ω

6.04kΩ

RIGHT

Evluates:MAX597

1.2nF

3.01kΩ

390pF

ENC_INROUT

NOTE: ALL RESISTORS ARE 1%.

Figure 5. Lowpass Filter Configuration for the Burr-Brown PCM1742

3.57kΩ

CS4334

DAC

INC_INL+

ENC_INL-

10µF

1.21kΩ

4.64kΩ

1.21kΩ

LEFT

2.7nF

3.3nF

270kΩ

2.40kΩ

560pF

MAX9597

ENC_INLOUT

3.57kΩ

INC_INR+

10µF

1.21kΩ

4.64kΩ

1.21kΩ

ENC_INR-

RIGHT

2.7nF

3.3nF

270kΩ

2.40kΩ

560pF

ENC_INROUT

NOTE: ALL RESISTORS ARE 1%.

Figure 6. Lowpass Filter Configuration for the Cirrus Logic CS4334

_______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

The audio input circuit of the MAX9597 has been

designed such that the existing resistors and capaci-

tors can be replaced to create the lowpass filter circuits

for the PCM1742 and the CS4334. See Table 3 for com-

ponent values.

Table 3. Component Values to Create Audio Lowpass Filter Circuits (PCM1742 and CS4334)

VALUES

DESIGNATION

DEFAULT

PCM1742

CS4334

CAPACITORS

C35, C47

Open

10µF

Open

1.2nF

10µF

2.7nF

10µF

C43, C51

C44, C48

C45, C49

C46, C50

Open

390pF

Open

560pF

3.3nF

RESISTORS

R36, R42

R37, R43

R38, R44

R39, R45

R40, R46

R41, R47

R48, R49

R50, R51

R52, R53

R54, R55

10kΩ

0Ω

Open

0Ω

Open

0Ω

1.21kΩ

2.4kΩ

4.64kΩ

1.21kΩ

270kΩ

Open

0Ω

3.01kΩ

6.04kΩ

604Ω

Open

3.01kΩ

Open

0Ω

Open

75Ω

3.57kΩ

Open

_______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 7a. MAX9597 EV Kit Schematic (Sheet 1 of 2)

10 ______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 7b. MAX9597 EV Kit Schematic (Sheet 2 of 2)

______________________________________________________________________________________ 11

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 8. MAX9597 EV Kit Component Placement Guide—Component Side

12 ______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 9. MAX9597 EV Kit Component PCB Layout—Component Side

______________________________________________________________________________________ 13

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 10. MAX9597 EV Kit PCB Layout—Inner Layer 2

14 ______________________________________________________________________________________

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 11. MAX9597 EV Kit PCB Layout—Inner Layer 3

______________________________________________________________________________________ 15

MAX9597 Evaluation Kit

Evluates:MAX597

Figure 12. MAX9597 EV Kit PCB 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.

16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

is a registered trademark of Maxim Integrated Products, Inc.

MAX9597EVKIT [MAXIM]

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