ADL5375ACPZ-R7 datasheet(31/36 Pages) AD

31 / 36 page

Data Sheet

ADL5375

Rev. C | Page 31 of 36

Table 9. Evaluation Board Description and Configuration Options

Component

Description

Default Condition/Option

Settings

VPOS, GND Test Points

Power supply and ground test points for clip leads

Red = 5 V, black = GND

S1 Switch, R6, R15

DSOP output disable select

Position A = output enabled

Position B = output disabled

R15 = 49.9 Ω (0603)

R6 = 10 kΩ (0603)

R7, R12

AC limiting resistors

R7, R12 = 100 Ω (0603)

C16 to C18, R14, R16, R18,

R19

LO input filter components

R14 , R18 = 0 Ω (0603)

R16, R19, C16 to C18 = open

(0603)

C6, C7

LO driving capacitor

C6, C7 = 100 pF (0402)

LOIP SMA, R17, R20, R21,

R22, T1, T2, T2A

Single-ended local oscillator input

R17 = 0 Ω (0603)

R20 = open (0402)

R21 = 0 Ω (0402)

R22 = open (0603)

T1, T2, T2A = open

LOIN SMA, R16, R17, R19,

R20,

Optional differential LO input at LOIN

R16, R19 = 0 Ω (0603)

R21, R22, T1, T2, T2A

R20, R21 = 0 Ω (0402)

R17, R22 = open (0603)

T1, T2, T2A = open

LOIP SMA, T1 (or T2, T2A),

R17, R20, R21, R22

Optional differential LO driving with Balun at LOIP

R17 = open (0603)

R20, R21 = open (0402)

R22 = 0 Ω (0603)

T1 = TC1-1-43A+ or

T2 = 3600BL14M050 or T2A =

5400BL15B050

C100, C101

Frequency tuning capacitors for RF driver amplifier

Tuning for 1805 MHz to

2170 MHz

Refer to the ADL5320 datasheet for the exact position according to the frequency

C100 = 0.5 pF (0402) C101 =

1.5 pF (0402)

AC-coupling capacitor connects ADL5375 RF output to MOD_OUT RF connector or to

ADL5320 RF input

C1 = 100 pF (0402)

Resistor connects ADL5375 RF output to MOD_OUT (AMP_IN) SMA

To check ADL5375 performance itself, a 0 Ω should be inserted at R1 and open R2.

R1 = open (0402)

To check ADL5320 performance itself, a 0 Ω should be inserted at R1 and R2

Resistor connects ADL5375 RF output to ADL5320 RF input

R2 = 0 Ω (0402)

ADL5375 quadrature modulator

ADL5375-05 or ADL5375-15

SOT-89 RF driver amplifier

ADL5320

DC bias Inductor

L1 = 15 nH(0603)

C2, C3, C4, C5, C9, C10, C11

Power supply bypassing capacitors

C2, C3 = 100 pF (0402)

C4, C5 = 0.1 µF (0402)

C9 = 10 µF (1206)

C10 = 10 nF (0603)

C11 = 22 pF (0603)

R13

Resistor to share power supply between the ADL5375 and the ADL5320. To turn

on the ADL5320, a 0 Ω resistor should be installed in this location.

R13 = 0 Ω (0603)

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