MRF372R3 MRF372R5

9

RF Device Data

Freescale Semiconductor

MRF372

L1A

C5

C10 C11

R6A

C8A

R9A

R4TA

R3A

L2A

C15A

L3A

C16A

L1B

C14B

L2B

C15B

C16B

C14A

R6B

C14D

C12

C13

L3C

C17B

R3B

R2B

C1

C3A

C3B

C4

C6

C7A

C7B

R4TB

R1B

R5A

R5B

R7

R1A

C14C

C2

C9A

C9B

R8

R9C

R10A

R10B

C18A

C18B

C17A

R9B

C8B

R2A

L3B

R9D

Rev. 1a

Figure 11. 470-860 MHz Broadband Component Layout

PCB Substrate (30 mil thick)

Motorola Vertical 660 MHz Balun

Rogers RO3010 (50 mil thick)

55 mil slot cut

out to accept Balun

Input

(50 ohm microstrip)

Output 2

(12.5 ohm microstrip)

Ground

Vertical Balun Mounting Detail

Note:

Trim Balun PCB so that a 35 mil tab"

fits into the main PCB slot" resulting

in Balun solder pads being level with

the PCB substrate solder pads when

fully inserted.

Output 1

(12.5 ohm microstrip)

Freescale has begun the transition of marking Printed Circuit Boards (PCBs) with the Freescale

Semiconductor signature/logo. PCBs may have either Motorola or Freescale markings during the

transition period. These changes will have no impact on form, fit or function of the current product.