MAX9860EVKIT_技术文档

19-5081; Rev 0; 12/09

MAX9860 Evaluation Kit

General Description

Features

S USB-PC Connection (Cable Included)

The MAX9860 evaluation kit (EV kit) consists of a

MAX9860 evaluation board and software. The EV kit is

a fully assembled and tested circuit board that evalu-

ates the MAX9860 low-power, voiceband, mono audio

codec. The EV kit is designed to send and receive

digital audio data in the Sony/Philips digital interface

(S/PDIF) format and can be optionally configured to com-

municate using generic digital audio or I²S-compatible

signals. The EV kit provides fiber optic receiving and

transmitting modules for digital audio input and output.

S USB Powered (External Power Supply Not

Required)

S On-Board 12.288MHz and 13MHz Clock Oscillators

S On-Board Digital Audio Interface Transceiver

S On-Board Fiber Optic Transmitter and Receiver

Modules

S Isolation Header for Direct Communication with

the MAX9860 I²C and Digital Audio Interfaces

M

The EV kit includes Windows 2000-, Windows XP -,

S Proven PCB Layout

M

and Windows Vista -compatible software that provides a

S Windows 2000-, Windows XP-, and Windows Vista

graphical user interface (GUI) for exercising the features

of the MAX9860. The EV kit is connected to a PC through

a USB A-to-B cable.

(32-Bit)-Compatible Software

Ordering Information

PART

TYPE

MAX9860EVKIT+

EV Kit

+Denotes lead(Pb)-free and RoHS compliant.

System Diagram

ANALOG INPUTS

SOFTWARE

REQUIRED

USB CABLE

EV KIT

ANALOG OUTPUTS

S/PDIF DIGITAL

INPUTS AND OUTPUTS

Windows, Windows XP, and Windows Vista are registered

trademarks of Microsoft Corp.

_______________________________________________________________ Maxim Integrated Products

1

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.

MAX9860 Evaluation Kit

Component List

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

REQUIRED COMPONENTS

0.1I DCR, 60I at 100MHz

ferrite beads

Murata BLM18PG600SN1

FB1, FB2

2

1.0FF Q10%, 6.3V X5R

ceramic capacitors (0402)

Murata GRM155R60J105K

C1, C2, C3,

10

C5–C11

Digital audio fiber optic

transmitter module

Toshiba TOTX147L(F,T)

J1

J2

1

2.2FF Q10%, 6.3V X5R

ceramic capacitor (0603)

Murata GRM188R60J225K

C4

1

Digital audio fiber optic receiver

module

SUPPORT COMPONENTS

Toshiba TORX147L(F,T)

C12, C17, C18,

1FF Q10%, 6.3V X5R

C19, C32, C34,

C45, C46

8

ceramic capacitors (0603)

Murata GRM188R60J105K

Not installed, 10-pin header

(2 x 5)

J3

J4

0

1

USB type-B right-angle

receptacle

C13, C16, C23,

C24, C30, C33,

C35, C39–C42,

C47

0.1FF Q10%, 16V X5R

ceramic capacitors (0603)

Murata GRM188R61C104K

12

JU1–JU7, JU9,

JU10, JU11

10

1

2-pin headers

JU8

21-pin header (3 x 7)

0.01FF Q10%, 16V X7R

ceramic capacitors (0603)

Murata GRM188R71C103K

C14, C15, C20,

C21, C26–C29

8

1

2

1

47FH Q5%, 200mA inductor

(1812)

Coilcraft 1812LS-473XJLB

L1

1

0.047FF Q10%, 16V X7R

ceramic capacitor (0603)

Murata GRM188R71C473K

C22

C25

R1, R2, R6, R12

R3

4

1

0

5

1

2

5

3

2

1

2.2kI Q5% resistors (0402)

10kI Q5% resistor (0402)

Not installed, resistors (0402)

75I Q5% resistors (0402)

402I Q5% resistor (0603)

47kI Q5% resistor (0603)

220I Q5% resistors (0603)

0I Q5% resistors (0603)

1.5kI Q5% resistors (0603)

27I Q5% resistors (0603)

2.2kI Q5% resistor (0603)

470I Q5% resistor (0603)

10kI Q5% resistor (0603)

R4, R5

0.47FF Q10%, 16V X7R

ceramic capacitor (0603)

Murata GRM188R71C474K

R7–R11

R13

R14

0.033FF Q10%, 16V X7R

ceramic capacitor (0603)

Murata GRM188R71C333K

R15, R16

R17, R19–R22

R18, R23, R24

R25, R26

R27

C31

10pF Q5%, 50V C0G

ceramic capacitors (0603)

Murata GRM1885C1H100J

C36, C37

C38

R28

10FF Q10%, 6.3V X5R

ceramic capacitor (0805)

Murata GRM219R60J106K

R29

Mono audio voice codec

(24 TQFN-EP*)

Maxim MAX9860ETG+

U1

1

2

22pF Q5%, 50V C0G

ceramic capacitors (0603)

Murata GRM1885C1H220J

C43, C44

C48–C52

2

0

Low-noise linear regulators

(5 SC70)

Maxim MAX8510EXK18+

U2, U3

Not installed, ceramic

capacitors (0402)

Digital audio transceiver (28 SO)

CirrusLogic CS8427-CSZ

Surface-mount LED, yellow

(0603)

U4

1

2

D1

D2

1

U5, U6

2:1 high-speed MUXes (6 SC70)

Surface-mount LED, red (0603)

2

______________________________________________________________________________________

MAX9860 Evaluation Kit

Component List (continued)

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

Low-noise linear regulator

(5 SC70)

Maxim MAX8511EXK33+

16MHz surface-mount crystal

Hong Kong X’tals

SSM16000N1HK188F0-0

U7

1

Y3

Y4

Y5

1

0

1

Not installed, crystal

USB-to-UART converter

(32 TQFP)

U8

U9

1

6MHz surface-mount crystal

Hong Kong X’tals

SSL60000N1HK188F0-0

93C46 type 3-wire EEPROM

(8 SO)

USB high-speed A-to-B cable,

6ft

Low-noise linear regulator

(5 SC70)

Maxim MAX8511EXK25+

—

1

17

1

U10

1

Shunts

Microcontroller (68 QFN-EP*)

Maxim MAXQ2000-RAX+

PCB: MAX9860 EVALUATION

KIT+

U11

Y1

1

—

*EP = Exposed pad.

12.288MHz clock oscillator

13MHz clock oscillator

Hong Kong X’tals

Y2

1

C4M13000NSMI02601-0

Component Suppliers

SUPPLIER

PHONE

WEBSITE

Coilcraft, Inc.

847-639-6400

852-35112388

770-436-1300

949-623-2900

www.coilcraft.com

Hong Kong X’tals Ltd.

www.hongkongcrystal.com

www.murata-northamerica.com

www.toshiba.com/taec

Murata Electronics North America, Inc.

Toshiba America Electronic Components, Inc.

Note: Indicate that you are using the MAX9860 when contacting these component suppliers.

MAX9860 EV Kit Files

FILE

DESCRIPTION

Installs the EV kit files on your computer

Application program

INSTALL.EXE

MAX9860.EXE

FTDIBUS.INF

USB device driver file

UNINST.EXE

Uninstalls the EV kit software

USB driver installation help file

USB_Driver_Help.PDF

_______________________________________________________________________________________

3

MAX9860 Evaluation Kit

8) Enable the digital audio equipment input and

output.

Quick Start

Recommended Equipment

9) Enable the two analog audio sources.

•ꢀ MAX9860 EV kit (USB A-to-B cable included)

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

load the latest version of the EV kit software,

9860Rxx.ZIP.

•ꢀ User-supplied Windows 2000, Windows XP, or

Windows Vista PC with a spare USB port

•ꢀ Speaker (16I or 32I, 50mW or greater)

11) Install the MAX9860 evaluation software on your

computer by running the INSTALL.EXE program.

The program files are copied and icons are created

in the Windows Start menu.

•ꢀ Two single-ended or differential analog audio

sources

•ꢀ Digital audio equipment with two TOSLINK optical

cables

12) 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 a window is not seen 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.

Refer to the MAX9860 IC data sheet while using this

EV kit for detailed descriptions of the codec’s features.

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 under-

lined refers to items from the Windows operating system.

Procedure

The MAX9860 EV kit is fully assembled and tested.

Follow the steps below to verify board operation before

exercising the full features of the MAX9860:

13) Follow the directions of the Found New Hardware

window to install the USB device driver. Manually

specify the location of the device driver to be

C:\Program Files\MAX9860 (default installation

directory) using the Browse button. During device

driver installation, Windows may 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

document included with the software for additional

information.

1) Verify that all of the jumpers are set in their default

positions, as shown in Table 1.

2) Connect one TOSLINK optical cable between the

digital audio equipment input and the J1 module on

the EV kit board.

3) Connect the other TOSLINK optical cable between

the digital audio equipment output and the J2 mod-

ule on the EV kit board.

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

4) Connect one analog audio source to the MICLP

and MICLN pads on the EV kit board. Connect the

MICLN pad to GND for single-ended microphone

input.

Start | Programs menu.

15) The EV kit software main window appears as shown

in Figure 1. Verify that the message MAX9860:

Connected is displayed on the status bar at the

bottom of the software’s main window.

5) Connect the other analog audio source to the

MICRP and MICRN pads on the EV kit board.

Connect the MICRN to GND for single-ended micro-

phone input.

16) In the Clock Sources group box, click on the

Recovered Master Clock radio button.

17) Press the Configure button.

6) Connect the speaker to the OUTP and OUTN pads

on the EV kit board.

18) On the top-right corner of the software’s main win-

dow, select Enabled from the drop-down list.

7) Set the digital audio equipment audio output and

input sampling frequency to 48kHz.

19) Verify that audio from the digital audio equipment

is output at the speaker and the two analog audio

sources are output to the digital audio equipment.

4

______________________________________________________________________________________

MAX9860 Evaluation Kit

Deselect the Auto Read Status menu item before using

the command module interface. The I²C dialog boxes

accept numeric data in binary, decimal, or hexadecimal.

Hexadecimal numbers should be prefixed by $ or 0x.

Binary numbers must be exactly eight digits. See Figure

2 for an example of this control method.

Detailed Description of Software

Software Main Window

On the top of the main window, press the Read All button

to read all of the MAX9860 register values and update

the GUI. Press Reset to reset the EV kit hardware. Press

Connected to set up the connection between the EV kit

and the software application. The drop-down list lets a

user enable or disable the MAX9860.

Help Menu

Select Help for information about this software.

Digital Audio Interface and Clocking Tab

The Digital Audio Interface and Clocking tab sheet

(Figure 1) contains the master clock (MCLK) and digi-

tal audio interface selections for the MAX9860. A user

can select an automatic typical interface configuration

or manually configure the device according to specific

requirements.

The Device Status group box reports the status of vari-

ous device functions. Check/uncheck the checkboxes to

enable/disable the hardware interrupts for each status

flag.

The lower side of the main window includes six tabs. On

each tab sheet, the user can exercise a group of related

configurations and check the register values. Each con-

trol on the GUI generates the expected read and/or write

operations on the internal registers of the MAX9860 and

the CS8427 digital audio transceiver.

Playback / Sidetone Tab

The Playback / Sidetone tab sheet (Figure 3) includes

the DAC enable and gain controls. It also includes the

sidetone enable and level controls.

File Menu

Select the Save Configuration menu item to save the

current EV kit configuration to a text file that can be

loaded at a later time. Select Load Configuration to

reload settings from a saved file.

Record Tab

The Record tab sheet (Figure 4) controls the function-

ality of the ADC and the microphone circuitry on the

MAX9860.

Select Exit to exit the application.

Digital Filters Tab

The Digital Filters tab sheet (Figure 5) controls the

functionality of the DAC and ADC voice filters on the

MAX9860.

View Menu

Select the View Transceiver Registers menu item to

display or hide the CS8427 tab to change the digital

audio transceiver registers.

AGC / NG Tab

The AGC / NG tab sheet (Figure 6) includes the settings

for the noise gate and the automatic gain control on the

MAX9860.

Options Menu

Select the Power On Reset menu item to reset the

MAX9860 to its power-on state. Select Read Status to

read the MAX9860 status registers. Select Auto Read

Status to enable the automatic read of the MAX9860 sta-

tus registers. Select Auto Connect to automatically set

up the connection between the EV kit and the software

application in case the connection is lost.

Registers Tab

The Registers tab sheet (Figure 7) displays all of the

MAX9860 register values on one page. To change a reg-

ister value, type in the new value in the appropriate edit

box and press the Enter key on the keyboard, or click the

bit names on the GUI.

Tools Menu

Select the Reconnect to EVKIT menu item to set up

the connection between the EV kit and the software

application.

CS8427 Tab

The CS8427 tab sheet (Figure 8) displays the MAX9860

EV kit-related CS8427 register values on one page. To

change a register value, type in the new value in the

appropriate edit box and press Enter or click the bit

names on the GUI.

Select Debug Mode to bring up the Maxim Command

Module Interface window. The interface allows I²C oper-

ations, such as read byte and write byte, to be executed.

_______________________________________________________________________________________

5

MAX9860 Evaluation Kit

Figure 1. MAX9860 Evaluation Software Main Window

6

______________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 2. MAX9860 Evaluation Software (Maxim Command Module Interface)

_______________________________________________________________________________________

7

MAX9860 Evaluation Kit

Figure 3. MAX9860 Evaluation Software (Playback / Sidetone Tab)

8

______________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 4. MAX9860 Evaluation Software (Record Tab)

_______________________________________________________________________________________

9

MAX9860 Evaluation Kit

Figure 5. MAX9860 Evaluation Software (Digital Filters Tab)

10 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 6. MAX9860 Evaluation Software (AGC / NG Tab)

______________________________________________________________________________________ 11

MAX9860 Evaluation Kit

Figure 7. MAX9860 Evaluation Software (Registers Tab)

12 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 8. MAX9860 Evaluation Software (CS8427 Tab)

______________________________________________________________________________________ 13

MAX9860 Evaluation Kit

Recovered Clock

When the S/PDIF IN has a digital audio input and the

S/PDIF transceiver is in operation, the recovered clock

from the S/PDIF transceiver can be used as the master

clock for the MAX9860.

Detailed Description of Hardware

The MAX9860 EV kit is a complete digital audio evalua-

tion system for the MAX9860 mono audio codec. The EV

kit provides translation between the digital audio signals

and optical S/PDIF signals to allow easy connection with

consumer electronics devices. See Table 1 for a descrip-

tion of all EV kit jumper configurations.

External Clocks

Connect an external clock source to the jumper JU8 cen-

ter pin on the 5th row to drive the MAX9860’s MCLK pin

without using the on-board oscillator. The user must type

in the correct clock frequency in the MCLK Frequency

edit box.

Clocking

On-Board Clock

The EV kit has one 12.288MHz and one 13MHz clock

oscillator on the board to provide flexible master-clock

selections for the MAX9860.

Table 1. Jumper Descriptions (JU1–JU11)

JUMPER

SHUNT POSITON

Open*

1-2

DESCRIPTION

MICLP disconnected from MICBIAS

JU1

MICLP connected to MICBIAS through a 2.2kI resistor

MICLN disconnected from GND

Open*

1-2

JU2

JU3

JU4

JU5

JU6

JU7

JU8

JU9

JU10

MICLN connected to GND

Open*

1-2

MICLN disconnected from GND

MICLN connected to GND through a 2.2kI resistor

MICRP disconnected from MICBIAS

Open*

1-2

MICRP connected to MICBIAS through a 2.2kI resistor

MICRN disconnected from GND

Open*

1-2

MICRN connected to GND

Open*

1-2

MICRN disconnected from GND

MICRN connected to GND through a 2.2kI resistor

MAX9860 DVDDIO connected to the on-board 3.3V supply

MAX9860 DVDDIO applied externally on the DVDDIO pad

MAX9860 connected to the on-board I²S and I²C interfaces

MAX9860 I²S and I²C interfaces available for the user-supplied equipment

MAX9860 AVDD connected to the on-board 1.8V supply

MAX9860 AVDD applied externally on the AVDD pad

MAX9860 DVDD connected to the on-board 1.8V supply

MAX9860 DVDD applied externally on the DVDD pad

CS8427 powered by 5V USB supply

1-2*

Open

2-3* (all rows)

Open

1-2*

Open

1-2*

Open

1-2*

JU11

Open

CS8427 powered by external supply on the CS8427_5V pad

*Default position.

14 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 9a. MAX9860 EV Kit Schematic (Sheet 1 of 5)

______________________________________________________________________________________ 15

MAX9860 Evaluation Kit

Figure 9b. MAX9860 EV Kit Schematic (Sheet 2 of 5)

16 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 9c. MAX9860 EV Kit Schematic (Sheet 3 of 5)

______________________________________________________________________________________ 17

MAX9860 Evaluation Kit

Figure 9d. MAX9860 EV Kit Schematic (Sheet 4 of 5)

18 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 9e. MAX9860 EV Kit Schematic (Sheet 5 of 5)

______________________________________________________________________________________ 19

MAX9860 Evaluation Kit

Figure 10. MAX9860 EV Kit Component Placement Guide—

Component Side

Figure 11. MAX9860 EV Kit PCB Layout—Component Side

Figure 12. MAX9860 EV Kit PCB Layout—Inner Layer 2

20 _____________________________________________________________________________________

MAX9860 Evaluation Kit

Figure 13. MAX9860 EV Kit PCB Layout—Inner Layer 3

Figure 14. MAX9860 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.

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

21

©

2009 Maxim Integrated Products

Maxim is a registered trademark of Maxim Integrated Products, Inc.


型号：	MAX9860EVKIT
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	On-Board Fiber Optic Transmitter and Receiver Modules
文件：	总21页 (文件大小：4532K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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