ADL5592

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EVALUATION BOARD

CHARACTERIZATION SETUP

The primary setup used to characterize the ADL5592 is shown

in Figure 23. This setup was used to measure the frequency

response, linearity, and output compression of the amplifier. A

Rohde & Schwarz SMT 03 signal generator was used to drive

the amplifier with a 4 dBm input. The output of the ADL5592

was connected to a Rohde & Schwarz FSIQ7 spectrum analyzer

through an RF switch matrix unit. For the linearity measurement,

two SMT 03 signal generators were used to generate the two-tone

RF input signal. (The same SMT 03 is used for both amplifier

and mixer characterization.) The gain control data was generated

by a Tektronix DG2020A data generator. The DG2020A generated

all three of the SPI input signals: CLK, DATA, and LE. A separate

SMT 03 was used to generate the mixer local oscillator signal

(LO input signal) when the loopback mixer was enabled. An

Agilent Visual Engineering Environment (VEE) program

controlled the test instruments through the general-purpose

interface bus (GPIB) interface.

ADL5592

RFOUT

LOOP OUT

RFIN

LOIP

DATA CLK LE

VCC

RF

SWITCH

R&S FSIQ7

SPECTRUM ANALYZER

GPIB INTERFACE

INSTRUMENT CONTROLLER

TEKTRONIX DG2020A

DATA GENERATOR

AGILENT 6624A

DC POWER SUPPLY

R&S SMT 03

SIGNAL GENERATOR

R&S SMT 03

SIGNAL GENERATOR

Figure 23. Characterization Bench Setup