ADL5567

Data Sheet

Rev. 0 | Page 22 of 23

Table 7. Evaluation Board Configuration Options

Component

Description

Default Condition

VCCB, GND

Supply and ground test loops.

VCCB, GND = installed

C5, C7, C21, L1,

L2

Power supply decoupling. The supply decoupling consists of a 10 μF capacitor (C21) and

two 0.1 μF capacitors, C5 and C7, connected between the supply lines and ground.

L1 and L2 decouple the ADL5567 from the power supply.

C21 = 10 μF (Size D),

C5, C7 = 0.1 μF (Size 0402),

L1, L2 = 5.1 nH (Size 0603)

VIN1, VIP1, VIP2,

VIN2, R1, R2, R3,

R4, R5, R8, R9,

R10, R11, R12,

R21, R24, C13,

C1, C12, C14,

C15, C16, T1, T2

Input interface. The SMA labeled VIN1 is the input to Amplifier 1. T1 is a 1:1

impedance ratio balun to transform a single-ended input into a balanced differential

signal. Removing R3, installing R1 (0 Ω), and installing an SMA connector (VIP1) allows

driving from a differential source. C13 and C14 provide ac coupling. C12 is an optional

bypass capacitor. R9 and R10 provide a differential 50 Ω input termination. The SMA

labeled VIP2 is the input to Amplifier 2. T2 is a 1:1 impedance ratio balun to transform a

single-ended input into a balanced differential signal. Removing R4, installing R2 (0 Ω),

and installing an SMA connector (VIN2) allows driving from a differential source. C15

and C16 provide ac coupling. C1 is an optional bypass capacitor. R11 and R12 provide

a differential 50 Ω input termination.

VIN1, VIP2 = installed,

VIP1, VIN2 = not installed,

R1, R2 = do not install (DNI),

R3, R4, R5, R8, R21, R24 = 0 Ω

(Size 0402),

R9, R10, R11, R12 = 50 Ω (Size 0402),

C13, C14, C15, C16 = 0.01 μF

(Size 0402),

C1, C12 = DNI,

T1, T2 = TCM1-43+ (Mini-Circuits®)

VOP1, VON1,

VON2, VOP2,

C10, C11, C17,

C18, C19, C20,

R13, R14, R15,

R16, R17, R18,

R19, R20, R25,

R26, R27, R28,

T3, T4

Output interface. The SMA labeled VOP1 is the output for Amplifier 1. T3 is a 1:1

impedance ratio balun used to transform a balanced differential signal to a single-

ended signal. Removing R25, installing R27 (0 Ω), and installing an SMA connector

(VON1) allows differential loading. C10 is an optional bypass capacitor. C17 and C18

provide ac coupling. R13, R14, R17, and R16 are provided for generic placement of

matching components.

The SMA labeled VON2 is the output for Amplifier 2. T4 is a 1:1 impedance ratio balun

used to transform a balanced differential signal to a single-ended signal. Removing R26,

installing R28 (0 Ω), and installing an SMA connector (VOP2) allows differential loading.

C11 is an optional bypass capacitor. C19 and C20 provide ac coupling. R15, R16, R19,

and R20 are provided for generic placement of matching components.

The evaluation board is configured to provide a 50 Ω source impedance to the external

output, as well as a 200 Ω load to the device, with a voltage divide ratio of 17 dB.

VOP1, VON2 = installed,

VON1, VOP2 = not installed,

R13, R14, R15, R16 = 84.5 Ω

(Size 0402),

R17, R18, R19, R20 = 34.8 Ω

(Size 0402),

R25, R26 = 0 Ω (Size 0402),

R27, R28 = DNI (Size 0402),

C10, C11 = DNI (Size 0402),

C17, C18 = 0.01 μF (Size 0402),

C19, C20 = 0.01 μF (Size 0402),

T3, T4 = TCM1-43+ (Mini-Circuits)

ENBL_1,

ENBL_2, C3, C4

Device enable. ENBL_1 is the enable input for Amplifier 1. Placing the jumper

between Position 1 and Position 2 enables Amplifier 1. C3 is a bypass capacitor for

the ENBL_1 input. ENBL_2 is the enable for Amplifier 2. Placing the jumper between

Position 1 and Position 2 enables Amplifier 2. C4 is a bypass capacitor for the

ENBL_2 pin.

ENBL_1, ENBL_2 = installed,

C3, C4 = 0.1 μF (Size 0402)

VCOM-1,

VCOM-2, C2, C6

Common-mode voltage interface. VCOM-1 is the common-mode interface for

Amplifier 1. A voltage applied to this pin sets the common-mode voltage of the output

of Amplifier 1. VCOM-2 is the common-mode interface for Amplifier 2. A voltage applied

to this pin sets the common-mode voltage of the output of Amplifier 2. Typically

decoupled to ground with a 0.1 μF capacitor (C2 and C6). With no reference applied,

VCOM-1, VCOM-2 = installed

C2, C6 = 0.1 μF (Size 0402)

PM1, PM2

Power mode control. Each amplifier has a power mode control that lowers the

current in the amplifier to lower the power consumption.

PM1, PM2 = installed

Figure 55. Layout of Evaluation Board, Component Side

Figure 56. Layout of Evaluation Board, Circuit Side