Data Sheet

ADL5725

Rev. 0 | Page 11 of 12

BASIC CONNECTIONS FOR OPERATION

Figure 20 shows the basic connections for operating the ADL5725 as it is implemented on the evaluation board of the device.

DNI

U2

U1

RFIN

R4

R2

R1

P1

GND

C12

C11

C10

C9

C8

C7

C6

C5

C4

C3

C2

C1

572X_RFOP

572X_RFON

5V

3P3V

1P8V

R3

357

RBIAS

ADL5725

DUTA

ADM7172ACPZ-3.3

ADM7170ACPZ-1.8

25-146-1000-92

10K

0

0

69157-102HLF

BLK

4.7UF

1000PF

4.7UF

4.7UF

1000PF

4.7UF

0.1UF

0.1UF

4.7NF

33PF

33PF

4.7NF

25-146-1000-92

25-146-1000-92

RED

RED

RED

0

5

2

3

7

6

PAD

4

1

8

1

1

1

CNSRI2516100092_SW109201A5

1

2

3

4

CNSRI2516100092_SW109201A5

1

2

3

4

1

1

2

CNSRI2516100092_SW109201A5

1

2 3 4

5

PAD 6

3

4

8

7

1

2

5

PAD 6

3

4

8

7

1

2

OUTP

OUTN

RFIN

1.8V

5V

1.8V

1.8V

3.3V

3.3V

3.3V

5V

5V

1.8V

AGND

AGND

AGND

AGND

OUTN

OUTP

INPT

PAD

VCC2

DNC

RBIAS

GND

VCC1

AGND

AGND

AGND

AGND

AGND

AGND

AGND

AGND

AGND

EP

VIN2

VIN1

GND

EN

SS

SENSE

VOUT2

VOUT1

EP

VIN

VIN

GND

EN

SS

SENSE

VOUT

VOUT

AGND

AGND

AGND

AGND

AGND

AGND

AGND

AGND

AGND

Figure 20. Evaluation Board Schematic

Table 6. Evaluation Board Configuration Options

Component

Function

Default Condition

3P3V, 1P8V, GND, 5V

Power supplies and ground.

Not applicable

RFIN, 572X_RFOP, 572x_RFON

Input, output, and data.

Not applicable

RBIAS

357 Ω for RBIAS.

RBIAS = 357 Ω (0402)

R1, R2

1.8 V and 3.3 V regulator connections.

R1, R2 = 0 Ω (0402)

R3

Do not install (DNI).

R3 = DNI (0402)

R4

Pull-up or pull-down resistor.

R4 = 10 kΩ (0402)

C1 to C12

The capacitors provide the required decoupling for the supply

related pins.

C1,C4 = 4.7 nF (0402),

C2, C3 = 33 pF (0402),

C5, C6 = 0.1 µF (0402),

C7, C9, C10, C12 = 4.7 µF (0603),

C8, C11 = 1000 pF (0603)

P1

Jumper to change bands, 2-pin jumper.

Not applicable

U1

ADM7170ACPZ-1.8 1.8 V regulator.

Not applicable

U2

ADM7172ACPZ-3.3 3.3 V regulator.

Not applicable

DUTA

ADL5725 device under test (DUT).

Not applicable