ADRF6516ACPZ-R7 datasheet(27/32 Pages) AD

27 / 32 page

Data Sheet

ADRF6516

Rev. B | Page 27 of 32

Figure 60. Top Layer Silkscreen

Figure 61. Component Side Layout

Table 6. Evaluation Board Configuration Options

Components

Function

Default Conditions

C1, C2, C4, C5, C11, C12, C15,

C16, L1, L2, R2

Power supply and ground decoupling. Nominal supply decoupling

consists of a 0.1 µF capacitor to ground.

C1, C2 = 10 µF (Size 1210)

C4, C5, C11, C12, C15, C16 =

0.1 µF (Size 0402)

L1, L2 = 33 µH (Size 1812)

R2 = 1 kΩ (Size 0402)

T1, T2, C3, C6, C7 to C10, R31,

R32, R43 to R58

Input interface. Input SMAs INP1, INM1_SE_P, INP2_SE_P, and INM2

are used to drive the part differentially by bypassing the baluns.

Using only INM1_SE_P and INP2_SE_P in conjunction with the baluns

enables single-ended operation. The default configuration of the

evaluation board is for single-ended operation.

T1 and T2 are 8:1 impedance ratio baluns that transform a single-

ended signal in a 50 Ω system into a balanced differential signal in a

400 Ω system.

R31, R32, R47, R48, R49, and R50 are populated for appropriate balun

interface. R51 to R58 are provided for generic placement of matching

components.

To bypass the T1 and T2 baluns for differential interfacing, remove

the balun interfacing resistors R31, R32, R47, R48, R49, and R50, and

populate R43, R44, R45, and R46 with 0 Ω resistors.

T1, T2 = ADT8-1T+ (Mini-Circuits)

C3, C6 = 0.1 µF (Size 0402)

C7 to C10 = 100 nF (Size 0602)

R31, R32, R47 to R50, R53, R54,

R57, R58 = 0 Ω (Size 0402)

R43 to R46, R51, R52, R55, R56 =

open (Size 0402)

T3, T4, C19 to C24,

R7 to R14, R19, R20,

R35 to R42

Output interface. Output SMAs OPP1_SE_P, OPM1, OPP2, and

OPM2_SE_P are used to obtain differential signals from the part

when the output baluns are bypassed. Using OPP1_SE_P,

OPM2_SE_P, and the baluns, the user can obtain single-ended output

signals. The default configuration of the evaluation board is for

single-ended operation.

T3 and T4 are 8:1 impedance ratio baluns that transform a differential

signal in a 400 Ω system into a single-ended signal in a 50 Ω system.

R7, R8, R9, R10, R19, R20, R35, R36, R41, and R42 are populated for

appropriate balun interface. R7 to R14 are provided for generic

placement of matching components.

To bypass the T3 and T4 baluns for differential interfacing, remove

the balun interfacing resistors R19, R20, R35, R36, R41, and R42, and

populate R37, R38, R39, and R40 with 0 Ω resistors.

T3, T4 = ADT8-1T+ (Mini-Circuits)

C19 to C22 = 100 nF (Size 0402)

C23, C24 = 0.1 µF (Size 0402)

R7 to R10, R19, R20, R35, R36,

R41, R42 = 0 Ω (Size 0402)

R11 to R14, R37 to R40 = open

(Size 0402)

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