EVAL-ADF4208EB1_技术文档

EvaluationBoardForPLLFrequency

Synthesizer

a

EVAL-ADF4208EB1

FEATURES

G E NE R AL D E S C R IP T IO N

Evaluation Board featuring the ADF4208 synthesiser.

Requires only RF and IF VCO's and Loop Filters for dual

PLL.

Com plete w ith SMA connectors, battery, and on board

10MHz Crystal.

Program m able via a serial interface.

Accom panying Softw are allow s com plete controlofsynthesizer

functions from PC using Window s 95/ 98/ NT

Battery Operated: Choice of 3V or 5V supplies

On Board Monitoring of Current and Voltage.

T his board is designed to allow the user to evaluate

the performance of the ADF4208 Dual Frequency

Synthesizer for PLL's (Phase Locked Loops). T he

block diagram of the board is shown below. It con-

tains the ADF4208 synthesizer, a pc connector, and

SMA connections for refererence input, power

supplies and RF and IF output. T he board only

requires an RF VCO and loop filter and an IF VCO

and loop filter. A cable is included with the board to

connect to a pc printer port.

T he package also contains windows software to allow

easy programming of the synthesizer.

BLO CK D IAGRAM

9V BATTERY

V

DD

POWER SWITCH

V

VCO

ON

OFF

V

P

VCO1

VTUN

VCO 2

VCO 1

VCO2

VTUN

VCO1

FOUT

ADF4208

Not Populated

VCO2

FOUT

SMA

Socket

RF

OUT

SMA

Socket

IF

OUT

10 MHz Crystal

REF

IN

RSET

AD7706

EVAL-ADF4208EB1

PC CONNECTOR

REV.PrA 02/00

Inform ation furnished by Analog Devices is believed to be accurate and reliable. However,

no responsibility is assum ed by Analog Devices for its use, nor for any infringem ents of

patents or other rights of third parties which m ay result from its use. No license is granted

by im plication or otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.

Tel: 781-329-4700 Fax: 781-326-8703

EVAL-ADF4208EB1

H a r d wa r e D escr ip tion

T he evaluation board comes with a cable for connecting to

the printer port of a PC. T he silk screen and cable diagram for

the evaluation board are shown below. T he board

schematic is shown on pages 3 and 4.

EVAL-ADF411X

EVAL-ADF421X

1

2

3

4

5

6

7

8

9

1

14

Black - CLK

2

15

Brown - DATA

3

16

17

18

19

20

21

22

23

24

25

Red - LE

4

Orange - CE

PC

5

6

White - GND

Yellow

9 Way

Female D-Type

To

ADF411X

ADF421X

Evaluation

Board

7

8

9

Blue 10

11

12

Purple

13

25 Way Male

D-Type

To

PC Printer Port

Figure 2. PC Cable Diagram

connectors. If the user wishes they may use their own

power supplies and use the reference output. In this case,

they need to insert SMA connectors to as shown on the

silkscreen and block diagram.

T he AD7706 A/D converter is used to monitor the power

supply voltage and current consumption of the ADF4208.

T his helps the user pick the optimum synthesizer settings for

power consumption and also provides an alert if the battery

voltage is too low to sustain the required 3V or 5V for the

board supply.

Figure 1. Evaluation Board Silkscreen

T he board is powered from a single 9V battery. T he

power supply ciruitry allows the user to choose either 3V

or 5V for the ADF4208 V_DDand V_P, and for the VCO

supply. T he default settings are 3V for the ADF4208 V_DD

and 5V for the ADF4208 V_Pand for the VCO supply. It

is ver y im por tant to note that the AD F4208 V_{D D}should

never exceed the AD F4208 V_P. This can dam age the de-

vice.

All components necessary for LO generation are catered

for on-board. T he crystal oscillator circuit provides the

necessary 10MHz reference frequency. T he addition of an

SMA connector allows an external reference to be used

(Please consult circuit diagram to see what components

are needed to be added or removed for this). T he PLL

requires a loop filter and VCO for both the IF and RF

sides to complete the dual PLL. T he output is available

at RF OUT and IF OUT through standard SMA

REV.PrA 02/00

–2 –

EVAL-ADF4208EB1

Figure 3. Evaluation Board Circuit Diagram (Page 1)

REV.PrA 02/00

–3 –

EVAL-ADF4208EB1

Figure 4. Evaluation Board Circuit Diagram (Page 2)

REV.PrA 02/00

–4 –

EVAL-ADF4208EB1

Softwa r e D escr ip tion

Click on REF IN Frequency, and the REF IN Frequency

window will appear. Enter the reference frequency being

used and click OK. T his will be 10MHz with the Crystal.

Click on RF VCO Output Frequency, and the Output

Frequency window will appear. Enter the output frequency

and PFD reference frequency, and click OK. Repeat this

for the IF side.

Click On Prescaler, and the Prescaler window will appear.

Grab the pointer, and choose the desired prescaler value.

Click OK.

T he software comes on a CD. If the user runs

“AD F4XXXEvaluationSoftware.exe” on the CD , then the

install wizard installs the software. Follow the on-screen

directions. T he software will be installed in a default

directory called “C :\Program Files\Analog

Devices\ADF4xxx Evaluation Software”. T o run the

software, simply double click on "ADF4XXX Eval

Software.exe".

T he front panel of the evaluation board software is shown

below.

Click on the RF PD Polarity button to set the RF PD Polarity

bit High.

Click on Charge Pump Current Setting 2 or Charge Pump

Current Setting 1 and the Current Setting window will ap-

pear. Grab the pointer to set the Charge Pump Current Set-

ting. Click OK.

When the device window appears, choose the ADF4208

and click OK. T he main software screen now appears.

Follow the steps below for initial setup to interface to the

part.

Click on Choose Port, and the Port Connector window

will appear. Choose the port that the cable is connected to

on the PC and click OK. (Normally LPT 1)

T he data is now set up, and other features can now be exam-

ined by the user.

Figure 5. Software Front Panel

–5 –

REV.PrA 02/00

EVAL-ADF4208EB1

Table 1. Bill of Mater ials for the EVAL-AD F4208EB1

Qty Reference

Description

Manufacturer

PCB DECAL

VALUE

1

U1

U2

U3

U4

U5

U6

VCO1

VCO2

Y1

Y2

D1

D2

D3

ADF4208BRU

AD7706BR

AD780AR

ADP3300ART-5

ADP3300ART-3

Do Not Insert

4.9152MHz Crystal

10MHz Crystal

SD103C Schottky Diode

IN4001

ADI

TSSOP-20

SO16W B

SO8NB

SOT23-6

SOT23-5

ADF4208BRU

AD7706BR

AD780AR

ADP3300ART-5

ADP3300ART-3

NC7SM508

ADI

Fairchild

Vari-L

Vectron International

HC49 low profile

VXA4-1011

VXA4-1B2-10M00

SD103C

FEC 365-117

FEC 657-130

FEC 657-141

General Semiconductor DO35

D035

Vishay

Red Low Power LED

Green Low Power LED (Do Not Insert) Vishay

LED

D4

6

1

2

6

2

8

1

4

1

3

2

C1 C5 C7 C9 C11 C41

C2

C3 C29

C4 C6 C8 C10 C12 C30

C13-14

C15-17 C26-28 C43-44

C18

C19

C20

C21-22 C31-32

C23

C24

C25

C33 C36 C40

C34 C37

C35 C38

C39 C42

Multi Layer Ceramic Capacitor

Tantalum Capacitor

Multi Layer Ceramic Capacitor

Do Not Insert

Multi Layer Ceramic Capacitor

Do Not Insert

Multi Layer Ceramic Capacitor

Do Not Insert

Murata

AVX

Case 0603

CAP\TAJ_B

CAP\TAJ_A

Case 0603

Case 0805

Case 0603

Case 0805

Case 0603

CAP\TAJ_A

0.1uF

10uF 6.3V

22uF 6.3V

10pF

1nF

100pF

Murata

AVX

33pF

Multi Layer Ceramic Capacitor

Tantalum Capacitor

10nF

1uF 16V

4.7uF 10V

10uF 6.3V

AVX

1

7

1

2

1

6

2

1

3

6

3

2

1

R1

R2 R5-10

R3

R4 R18

R11

R12-14 R21-23

R15 R24

R16

R17

R19

R20

R25

Resistor (Surface Mount)

Do Not Insert

Resistor (Surface Mount)

Do Not Insert

Resistor (Surface Mount)

Do Not Insert

Resistor (Surface Mount)

Bourns

Case 0805

Case 0603

Case 0805

Case 0603

20r 1.0%

330r 1.0%

3k3 1.0%

1M 1.0%

51r 1.0%

18r 1.0%

51r 1.0%

R26

Bourns

Meggitt

1k 1.0%

R27-29

R30-33 R40-41

R34-35 R38

R36 R37

R42

10k 1.0%

100k 0.1%

0r 1.0%

330k 1.0%

4k7 1.0%

Bourns

1

SW 1

SW 2

Push Button Switch

SPDT Switch - (W ashable)

Omron

Apem

SW \PB-SMALL

SW _SIP-3P

FEC 176-986

FEC 150-559

20 T1-20

Red Testpoint

9 PIN D-TYPE MALE (HORIZ)

Do Not Insert

W Hughes

McMurdo

TESTPOINT

DCON9M

SMA

FEC-240-345

FEC 150-750

1

5

2

J1

J2 J3 J4 J5 J8

J6 J7

GOLD 50 SMA SOCKET

Pasternack

SMA

PE4118

Ω

3

1

4

LK1 LK2 LK3

LK4

LK1-4

3 pin header

4 pin header (2x2)

Shorting Shunt

Harwin

3M

SIP-3P

FEC 512-047

FEC 512-035

FEC 150-410

FEC 148-922

Each Corner

Rubber Stick-On Feet

2

1

P1

Pair PCB snap-on battery connector

9V PP3 Battery

Keystone

Duracell

BATT_PP3

FEC 723-988

FEC 908-526

1

PCB

EVAL-ADF4208EB1

REV.PrA 02/00

–6 –


型号：	EVAL-ADF4208EB1
厂家：	ADI
描述：	Evaluation Board For PLL Frequency Synthesizer 评估板用于PLL频率合成器
文件：	总6页 (文件大小：413K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

EVAL-ADF4208EB1 [ADI]

相关型号：

EVAL-ADF4212EB1

EVAL-ADF4213EB1

EVAL-ADF4213EB2

EVAL-ADF421XEB1

EVAL-ADF4350EB1Z

EVAL-ADF4351EB1Z

EVAL-ADF4360-0EB1

EVAL-ADF4360-1EB1

EVAL-ADF4360-3EB1

EVAL-ADF4360-4EB1

EVAL-ADF4360-5EB1

EVAL-ADF4360-6EB1