Communication Concepts FM-1KW Broadcast Application Note - Manual (Page 5)

MRFE6VP61K25H MRFE6VP61K25HS FM Broadcast
5
RF Reference Design Data
Freescale Semiconductor
Figure 7. FM Broadcast Reference Design Component Layout
+ +
+ +
CUT
OUT
A
REA
L2
L3
C3
R1
B1
C1
L1
C2
T1
COAX1
COAX2
C22 C23
C24
C21 C20
C19 C18
C15 C16
C17
L4
L5
C7
C8
C9
C10
C12
C11
C5
C4
COAX3
MRFE6VP61K25H Rev. 1
Note: Component numbers C6, C13 and
C14 are not used.
Table 4. FM Broadcast Reference Design Component Designations and Values
Part Description Part Number Manufacturer
B1 Long Ferrite Bead 2743021447 Fair--Rite
C1 6.8 μF, 50 V Chip Capacitor C4532X7R1H685K TDK
C2 27 pF Chip Capacitor ATC100B270JT500XT ATC
C3, C7, C8, C9, C10,
C11, C12 1000 pF Chip Capacitors ATC100B102JT50XT ATC
C4 39 pF Mica Capacitor MIN02--002DC390J--F Cornell Dubilier
C5 3 pF Chip Capacitor ATC100B3R0CT500XT ATC
C15, C22 10K pF Chip Capacitors ATC200B103KT500XT ATC
C16, C23 1 μF, 100 V Chip Capacitors C3225JB2A105KT TDK
C17, C24 10 μF, 100 V Chip Capacitors C5750X7S2A106MT TDK
C18, C19, C20, C21 470 μF, 63 V Electrolytic Capacitors 477KXM063M Illinois Capacitor
L1 39 nH Inductor 1812SMS--39NJLC Coilcraft
L2, L3 2.5 nH Inductors A01TKLC Coilcraft
L4, L5 7 Turn, #16 AWG, ID = 0.3″ Inductors Copper Wire
R1 11 Ω, 1/4 W Chip Resistor CRCW120611R0FKEA Vishay
T1 Balun TUI--9 Comm Concepts
Coax1, Coax2 Flex Cables, 12 Ω, 5.9″ TC--12 Comm Concepts
Coax3 Coax Cable, Quickform 50 Ω, 8.7″ SUCOFORM 250--01 Huber+Suhner
PCB* 0.030″, ε
r
= 3.5 TC--350 Arlon
Heatsink NI--1230 Copper Heatsink C193X280T970 Machine Shop
*PCB artwork for this reference design is available at http://freescale.com/RFbroadcast > Design Support > Reference Designs.
Note: See Appendix A for Tuning Tips.