4

Demo Board Layout

Demo Board Schematic

Figure 5. Demo Board Layout Diagram

Figure 6. Demo Board Schematic Diagram

Notes:

1. Recommended PCB material is 10 mils Rogers RO4350.

2. Suggested component values may vary according to layout and PCB material.

3. Input board loss at 2600MHz is 0.17dB.

4. The schematic is shown with the assumption that similar PCB is used for all MGA-16116, MGA-16216 and MGA-16316.

5. Detail of the components needed for this product is shown in Table 1

6. R1 and R6 are for low frequency stability.

7. Bias to each LNA is adjustable using R3 and R8 (see Figure 6). Increasing R3 and R8 will reduce bias current (Idd) and vice-versa.

8. R9/R10 are stability improvement resistors that may not be needed in actual application. They are included in the demoboard to provide isolation

from power supply noise.

9. Center Paddle is grounded.

Table 1. Component list for 2600 MHz matching

PART

Size

Value

Detail Part Number

C1, C12

0201

10 pF

GRM0335C1H100GD01

C2, C8, C13, C22

0402

0.1 mF

GRM155R71C104KA88D

C9, C19

0201

1000 pF

GRM033R11E102KA01

C3, C16

0201

33 pf

GJM0335C0J330GB01

C6, C20, C23, C24

0805

4.7 mF

GRM21BR61E475KA12

C7, C21

0201

15 pF

GRM0335C1H150GD01

C25, C26

0402

NOT USED

–

L1, L2

0603

10 nH

LQW18AN10NG00D

L3, L4

0603

6.8 nH

LQW18AN6N8C00D

R1, R4, R6, R7

0402

0 ohm

RK73Z1ETTP

R3, R8

0402

1 kohm

RK73B1ETTP102J

R9, R10

0402

10 ohm

RK73B1ETTP100J

RO4350

DK 3.48

H 10mil

G 0.45mm

W 0.58mm

MGA-16X16

Demoboard

(4-Port)

Rev 1

C26

RFIN

RFOUT

R9

C7

L4

C21

L3

C23

C16

C3

R6

C13

C12

L2

R8

C1

L1

C2

R1

R3

C20

C6

C25

R7

C22

C19

R4

C8

C9

APRIL 2011

R10

C24