EVAL-ADF4112EB1 [ADI]

CDMA Evaluation Board For PLL Frequency Synthesizer; CDMA评估板对于PLL频率合成器


型号：	EVAL-ADF4112EB1
厂家：	ADI
描述：	CDMA Evaluation Board For PLL Frequency Synthesizer CDMA评估板对于PLL频率合成器 CD
文件：	总6页 (文件大小：177K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

CDMA Evaluation Board For PLL

Frequency Synthesizer

EVAL-ADF4112EB1

GE NE RAL D E SC RIP T IO N

FEATURES

Self-Contained Board including Synthesizer and VCO,

Loop Filter for generating CDMA frequencies (824MHz

to 849MHz)

Designed for 3kHz Loop Bandw idth

Accom panying Softw are allow s com plete control of synthe-

sizer functions from PC

Battery Operated: Choice of 3V or 5V supplies

Typical Phase Noise Perform ance of -81dBc/ Hz @ 300 Hz

offset

Typical Spurious Perform ance of better than -81dBc at

30kHz offset from carrier

T his board is designed to allow the user to evaluate the

performance of the ADF4112 Frequency Synthesizer for

PLL's (Phase Locked Loops). T he block diagram of the

board is shown below. It contains the ADF4113 synthe-

sizer, a pc connector, SMA connector for the reference

input, power supplies and RF output. T here is also a

loop filter (3kHz bandwidth) and a VCO on board. 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

POWER SWITCH

ON OFF

VCO

VCO 1

(Vari-L)

ADF4112

TCXO

VCO 190-836T

OUT

SMA

Socket

REF

Vectron

AD7706

EVAL-ADF4112EB1

PC CONNECTOR

REV.PrA 04/00

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-ADF4112EB1

H ar dwar e D escr iption

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

Black - CLK

Brown - DATA

Red - LE

Orange - CE

White - GND

Yellow

9 Way

Female D-Type

ADF411X

ADF421X

Evaluation

Board

Blue 10

Purple

25 Way Male

D-Type

PC Printer Port

Figure 2. PC Cable Diagram

Loop component values shown in the circuit diagram are for

836MHz RF output, 5mA CP current, VCO190-836T ,

30kHz channel spacing and 3kHz loop bandwidth.

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 ADF4112 V_DDand V_P, and for the VCO supply. T he

default settings are 3V for the ADF4113 V_DDand 5V for the

ADF4112 V_Pand for the VCO supply. It is ver y im por tant

to note that the AD F4112 V_{D D}should never exceed the

AD F4112 V_P. This can dam age the device.

All components necessary for LO generation are on-board.

T he 13MHz T CXO from Vectron provides the necessary

Reference Input. T he PLL is made up of the ADF4112,

passive loop filter (20kHz bandwidth) and the VCO 190-

836T from Vari-L. T he output is available at RFOUT

through a standard SMA connector. If the user wishes they

may use their own power supplies and reference input. 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 ADF4112.

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.

REV.PrA 04/00

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EVAL-ADF4112EB1

Figure 3. Evaluation Board Circuit Diagram (Page 1)

REV.PrA 04/00

–3–

EVAL-ADF4112EB1

Figure 4. Evaluation Board Circuit Diagram (Page 2)

REV.PrA 04/00

–4–

EVAL-ADF4112EB1

Softwar e D escr iption

quency, for example) and click once. T his brings up a screen

where it is possible to either type in a new value of output

frequency or else increment and decrement by the channel

spacing.

T he software also allows monitoring of the device supply

voltage, supply current and the charge pump voltage. Simply

hit the "Update Voltage and Current Display" button to get

an up-to-date reading.

T he evaluation board software is contained on a CD-ROM

which comes in the package. T o load the software the user

should click on “setup.exe” , 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”. T o run the software, simply go to the

Start Menu and choose Program/ADF4XXX/

ADF4XXX_rev0. T his will open the software for the evalua-

tion board. T he user will be asked to choose which device is

being evaluated. Click on the ADF4112 button. Hit OK. T he

window shown below will now appear.

In this panel, click on the "Eval Board" button. Choose

ADF4112EB1 from the list on offer. Hit OK. T he synthesizer

will now be programmed with the correct settings for a

CDMA system working at 836MHz. 30kHz PFD frequency

is set up, 32/33 prescaler is chosen and charge pump current

of 5mA is programmed.

If the user wishes to change any of the settings then place the

cursor over the desired parameter (RF VCO Output Fre-

Figure 5. Software Front Panel

–5–

REV.PrA 04/00

EVAL-ADF4112EB1

Table 1. Bill of Mater ials for the EVAL-AD F4112EB1

Qty Reference Designator

Description

Manufacturer

PCB DECAL

VALUE

VCO1

ADF4112BRU

AD7706BR

ADI

TSSOP-16

SO16WB

SO8NB

ADF4112BRU

AD7706BR

ADI

AD780AR

ADI

AD780AR

ADP3300ART-5

ADP3300ART-3

VCO190-836T

4.9152MHz Crystal

19.2 MHz TCXO

SD103C Schottky Diode

IN4001

ADI

SOT23-6

ADP3300ART-5

ADP3300ART-3

VCO190-836T

ADI

Vari-L (Acal Elect. = Disti)

Vectron International

General Semiconductor

HC49 low profile VXA4-1011

T-1194

DO35

D035

LED

SD103C

FEC 365-117

FEC 657-130

FEC 657-141

Red Low Power LED

Vishay

Green Low Power LED (Do Not Insert) Vishay

LED

C1 C41

0.1uF Multi Layer Ceramic Capacitor Murata

Case 0603

CAP\TAJ_B

Case 0603

CAP\TAJ_A

Case 0805

Case 0603

Case 0805

Case 0603

CAP\TAJ_A

FEC 499-675

FEC 197-014

FEC 499-122

FEC 197-038

FEC 317-627

FEC 499-110

FEC 317-202

FEC 498-555

10uF 6.3V Tantalum Capacitor

100pF Multi Layer Ceramic Capacitor Murata

22uF 6.3V Tantalum Capacitor AVX

0.1uF Multi Layer Ceramic Capacitor Murata

AVX

C3 C26 C27 C28

C4 C31

C5 C7 C11

C6 C8 C9 C12 C32

C13 C14

C21 C22

C23

10pF Multi Layer Ceramic Capacitor

1nF Multi Layer Ceramic Capacitor

33pF Multi Layer Ceramic Capacitor

Murata

4.7nF Multi Layer Ceramic Capacitor Murata

47nF Multi Layer Ceramic Capacitor Murata

620pF Multi Layer Ceramic Capacitor Murata

C24

C25

C33 C36 C40

C34 C37

C35 C38

C39 C42

10nF Multi Layer Ceramic Capacitor

1uF 16V Tantalum Capacitor

4.7uF 10V Tantalum Capacitor

10uF 6.3V Tantalum Capacitor

Murata

AVX

FEC 499-146

FEC 498-701

FEC 498-658

FEC 197-014

AVX

20r 5% Resistor (Surface Mount)

330r 1% Resistor (Surface Mount)

3k3 1% Resistor (Surface Mount)

4k7 1% Resistor (Surface Mount)

Do Not Insert

Multicomp

Case 0805

Case 0603

Case 0805

Case 0603

Case 0805

Case 0603

Case 0805

FEC 771-132

FEC 911-143

FEC 911-290

FEC 911-318

R2 R5 R6 R7 R8 R9 R10

R11 R25

R18

1M 1% Resistor (Surface Mount)

5k1 1% Resistor (Surface Mount)

22k 1% Resistor (Surface Mount)

18r 1% Resistor (Surface Mount)

51r 1% Resistor (Surface Mount)

10k 1% Resistor (Surface Mount)

Multicomp

FEC 911-598

FEC 911-021

R19

R20

R21 R22 R23

R24

Multicomp

R27 R28 R29

FEC 911-355

FEC 911-471

FEC 911-537

FEC 772-227

FEC 911-938

R30 R31 R32R33 R40 R41 100k 0.1% Resistor (Surface Mount) Meggitt

R36 R37

R38 R39

R12

330K 1% Resistor (Surface Mount)

0r 1% Resistor (Surface Mount)

0r 1% Resistor - Do Not Insert

4k7 1% Resistor (Surface Mount)

Multicomp

R42

SW1

SW2

Push Button Switch

Omron

Apem

SW\PB-SMALL

SW_SIP-3P

FEC 176-986

FEC 150-559

SPDT Switch - (Washable)

18 T1-15 T19-21

Red Testpoint

W Hughes

McMurdo

Pasternack

Harwin

TESTPOINT

FEC-240-345

FEC 150-750

PE4118

9 PIN D-TYPE MALE (HORIZ)

Do Not Insert

DCON9M

SMA

J2 J3 J4 J5 J6

Ω

GOLD 50 SMA SOCKET

SMA

LK1 LK4 LK5

LK2-B

3 pin header

Wire Link

SIP-3P

SIP-2P

FEC 512-047

LK3

2 pin header

Shorting Shunt

Harwin

FEC 512-035

FEC 150-410

LK1 LK3-5

Pair PCB snap-on battery connector

9V PP3 Battery

Keystone

Duracell

BATT_PP3

FEC 723-988

FEC 908-526

Each Corner

Rubber Stick-On Feet

PCB

FEC 148-922

EVAL-ADF411XEB1

Parts Free issued by ADI.

ADI

Leave position blank - Do not insert.

Vari-L - UK Distributors - Acal Electronics Tel 0044 1252 858585

REV.PrA 04/00

–6–

EVAL-ADF4112EB1 [ADI]

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