2

dc2322afa

DEMO MANUAL DC2322A

1. Connect all test equipment as shown in Figure 1.

2. Set the power supply output voltage to 5V, and set the

current limit to 150mA.

THE EN TURRET TO ENSURE THAT THE PART DOES

NOT GET DAMAGED. ALSO, REMOVE POWER FROM

EN TURRET BEFORE REMOVING POWER FROM THE

4. Connect the EN turret to the power supply.

Quick stArt proceDure

notes on test eQuipMent AnD setup

n

High performance signal generators with low harmonic

outputs should be used for 2-tone measurements. Oth-

erwise, low-pass filters at the signal generator outputs

should be used to suppress harmonics.

n

High quality combiners should be used to present a

broadband 50Ω termination on all ports as well as provide

goodport-to-portisolation.Addingattenuatorpadsfurther

improves source isolation and helps prevent the signal

generators from producing intermodulation products.

n

Spectrum analyzers can produce significant internal

distortion products if they are overdriven. Generally,

spectrum analyzers are designed to operate at their

best with about –30dBm to –40dBm at their input. The

spectrumanalyzer’sinputattenuationsettingshouldbe

used to avoid saturating the instrument.

n

Setthespectrumanalyzer’sinputattenuationdepending

on the spectrum analyzer used.

n

Before performing measurements on the DUT, the

system performance should be evaluated to ensure that

a clean input signal is obtained and that the spectrum

analyzer’s internal distortion is minimized.

5. Set the LO signal generator to provide a 4900MHz CW

signal at about 0dBm to the demo board’s LO port.

6. Set the RF signal generators to provide one 899MHz CW

signal and one 901MHz CW signal. The signals should be

appliedtothe2-waycombiner.Theoutputofthecombiner

should be applied to the demo board’s IN port. The two

tonesshouldbesetto–10dBmeachatthemixer’sINport.

7. Setthespectrumanalyzer’scenterfrequencyto5.8GHz.

8. Perform various measurements (Conversion Gain,

OIP3, LO leakage, etc.)

pArts list

ITEM

QTY

REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

1

2

C1, C2

CAP., 1000pF, C0G, 50V, 5%, 0402

MURATA, GRM1555C1H102JA01

2

0

C3

DNI, 0402

3

1

C4

CAP., 100pF, C0G, 50V, 5%, 0402

MURATA, GRM1555C1H101JA01

4

1

C5

CAP., 0.3pF, C0G, 50V, ±0.05pF, 0402

AVX, 04021J0R3ZBS

5

1

C6

CAP., 0.2pF, C0G, 50V, ±0.05pF, 0402

AVX, 04021J0R2ZBS

6

1

C7

CAP., 0.01μF, X7R, 50V, 10%, 0402

MURATA, GRM155R71H103KA88

7

1

C8

CAP., 1μF, X7R,10V,10%, 0603

MURATA, GRM188R71A105KA61

8

4

E1-E4

TEST POINT, TURRET, .064 MTG. HOLE

MILL-MAX,2308-2-00-80-00-00-07-0

9

3

J1-J3

CON., SMA, 50Ω, EDGE-LANCH

E.F. JOHNSON, 142-0701-851

10

2

L1, L2

RES., 0Ω, 0402

VISHAY, CRCW04020000Z0ED

11

1

R1

RES., 2.61k, 1/16W, 1%, 0402

VISHAY, CRCW04022K61FKED

12

1

T1

TRANS., 50Ω, 4.5MHz – 3000MHz, TC1-1-13M+

MINI CIRCUITS, TC1-1-13M+

13

1

U1

IC., HIGH DYNAMIC RANGE ACTIVE MIXER

LINEAR TECH., LTC5576IUF