ADL5330

Data Sheet

Rev. B | Page 22 of 24

Table 5. Evaluation Board Configuration Options

Components

Function

Default Conditions

C1 to C4, C7 to C10, C13,

C14, R2, R4, R5, R6, R12

Power Supply Decoupling. The nominal supply decoupling consists of

100 pF and 0.1 μF capacitors at each power supply pin (the VPS2 pins, Pin 18

to Pin 22, share a pair of decoupling capacitors because of their proximity). A

series inductor or small resistor can be placed between the capacitors for

additional decoupling.

C1, C4, C7, C10, C13 = 100 pF

(size 0603)

C2, C3, C8, C9, C14 = 0.1 μF

(size 0603)

R2, R4, R5, R6, R12 = 0 Ω

(size 0402)

T1, C5, C6

Input Interface. The 1:1 balun transformer T1 converts a 50 Ω single-ended

input to the 50 Ω differential input. C5 and C6 are dc blocks.

T1 = ETC1-1-13 (M/A-COM)

C5, C6 = 100 pF (size 0603)

T2, C11, C12, L1, L2

Output Interface. The 1:1 balun transformer T2 converts the 50 Ω differential

output to 50 Ω single-ended output. C11 and C2 are dc blocks. L3 and L4

provide dc biases for the output.

T2 = ETC1-1-13 (M/A-COM)

C11, C12 = 100 pF (size 0603)

L1, L2 = 120 nH (size 0805)

SW1, R1, R13

Enable Interface. The ADL5330 is enabled by applying a logic high voltage to

the ENBL pin by placing a jumper across SW1 to the O position. Remove the

jumper for disable. To exercise the enable function by applying an external

high or low voltage, use the pin labeled O on the SW1 header.

SW1 = installed

R1 = 0 Ω (size 0402)

R13 = 10 kΩ (size 0402)

C15 to C18, M1 to M18

Alternate Input/Output Interface. The circuit side of the evaluation board

offers an alternate RF input and output interface. A lumped-element balun

can be built using L and C components instead of using the balun transformer

(see the Applications Information section). The components, M1 through

M9, are used for the input, and M10 through M18 are used for the output. To

use the alternate RF paths, disconnect the dc blocking capacitors

(Capacitor C5 and Capacitor C6 for the input and Capacitor C11 and Capacitor

C12 for the output). Place 100 pF dc blocking capacitors on C15, C16, C17,

and C18. Use the alternate set of SMA connectors, INPUT2 and OUT2.

M1 to M18 = not installed

(size 0603)

C15 to C18 = not installed

(size 0603)