AD8363

Rev. 0 | Page 30 of 36

EVALUATION AND CHARACTERIZATION CIRCUIT

BOARD LAYOUTS

Figure 69 to Figure 73 show the evaluation board for the AD8363.

TEMP

VPOS

C9

0.1µF

C8

OPEN

8

7

6

5

VSET

VOUT

VOUT

C10

0.1µF

C6

OPEN

TCM1

VPOSC

13

14

15

16

C5

100pF

VPOS

R10

845

Ω

R11

1.4k

Ω

C7

0.1µF

12

11

10

9

12

3

GND

4

C3

OPEN

C4

100pF

C12

0.1µF

C11

OPEN

C13

0.1µF

PADDLE

AGND

NC

INHI

INLO

TCM1

TEMP

VSET

VOUT

CLPF

AD8363

DUT1

VPOS1

TCM2/PWDN

VREFC

R16

0

Ω

R5

0

Ω

R2

OPEN

R14

0

Ω

R8

0

Ω

R13

OPEN

R1

0

Ω

R6

0

Ω

R9

OPEN

R18

OPEN

R17

OPEN

R12

OPEN

VREFC

IN

R7

0

Ω

R15

0

Ω

VREF

VTGT

GNDI

Figure 69. Evaluation Board Schematic

Table 6. Bill of Materials

Component

Function/Notes

Default Value

C6, C10,

C11, C12

Input. The AD8363 is single ended driven. At frequencies ≤2.6 GHz, the best dynamic range is achieved by

driving Pin 14 (INHI). When driving INHI, populate C10 and C12 with an appropriate capacitor value for

the frequency of operation and leave C6 and C11 open. For frequencies >2.6 GHz, additional dynamic

range can be achieved by driving Pin 15 (INLO). When driving INLO, populate C6 and C11 with an appropriate

capacitor value for the frequency of operation and leave C10 and C12 open.

C6 = open,

C10 = 0.1 μF,

C11 = open

C12 = 0.1 μF

R7, R8,

R10, R11

VTGT. R10 and R11 are set up to provide 1.4 V to VTGT from VREF. If R10 and R11 are removed, an external

voltage can be used. Alternatively, R7 and R11 can be used to form a voltage divider for an external reference.

R7 = 0 Ω,

R8 = 0 Ω,

R10 = 845 Ω,

R11 = 1.4 kΩ

C4, C5, C7,

C13, R14, R16

Power Supply Decoupling. The nominal supply decoupling consists of a 100 pF filter capacitor placed

physically close to the AD8363, a 0 Ω series resistor, and a 0.1 μF capacitor placed close to the power

supply input pin. The 0 Ω resistor can be replaced with a larger resistor to add more filtering; however,

it is at the expense of a voltage drop.

C4 = 100 pF,

C5 = 100 pF,

C7 = 0.1μF,

C13 = 0.1μF,

R14 = 0 Ω,

R16 = 0 Ω