ADL5374ACPZ-WP データシートの表示（PDF） - Analog Devices

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ADL5374ACPZ-WP

3000 MHz to 4000 MHz Quadrature Modulator

Analog Devices 

ADL5374

TEKTRONIX AFG3252

DUAL FUNCTION

ARBITRARY FUNCTION GENERATOR

CH1 1MHz

AMPL 700mV p-p

PHASE 0°

CH2 1MHz

AMPL 700mV p-p

PHASE 90°

R AND S SMT 06

SIGNAL GENERATOR

FREQ 4MHz TO 4GHz

LEVEL 0dBm

RF

OUT

0°

AGILENT E3631A

POWER SUPPLY

5.000 0.350A

IQ

90°

SINGLE-TO-DIFFERENTIAL

CIRCUIT BOARD

F-MOD TEST RACK

Q IN AC

6V

VPOS ++5V–

±25V

+ COM –

+5V –5V

VPOS +5V

AGILENT E3631A

POWER SUPPLY

Q IN DCCM

TSEN GND IP

VPOSB VPOSA IN

AGND IN1

IN1

VN1 VP1

I IN DCCM

QP

I IN AC

QN

LO

F-MOD

CHAR BD

IP

LO

IN

QP

OUT

QN GND

VPOS

OUTPUT

R AND S FSEA 30

SPECTRUM ANALYZER

0.500 0.010A

6V

+–

±25V

+ COM –

VCM = 0.5V

AGILENT 34401A

MULTIMETER

0.200 ADC

RF

IN

100MHz TO 4GHz

+6dBm

Figure 40. Setup for Baseband Frequency Sweep and Undesired Sideband Nulling

The setup used to evaluate baseband frequency sweep and

undesired sideband nulling of the ADL5374 is shown in Figure 40.

The interface board has circuitry that converts the single-ended

I input and Q input from the arbitrary function generator to

differential I and Q baseband signals with a dc bias of 500 mV.

Undesired sideband nulling was achieved through an iterative

process of adjusting amplitude and phase on the Q-channel. See

the Sideband Suppression Optimization section for a detailed

discussion on sideband nulling.

Rev. 0 | Page 19 of 20

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