AR
C
HIVE INF
O
RMATI
O
N
A
RCHIVE INFORMATION
4
RF Device Data
Freescale Semiconductor
MRF372R3 MRF372R5
Figure 2. 860 MHz Narrowband DC Bias Networks
VGG
VDD
L4
R4 R5
L2
R3
GATE DRAIN
L3
R1
C5
C3
+
R2
L1
C8
C7
C12
C10
Table 5. 860 MHz Narrowband DC Bias Networks Component Designations and Values
Designation
Description
C1
2.2 pF Chip Capacitor, ATC
C2
0.5 — 5.0 pF Variable Capacitor, Johansen Gigatrim
C3A, B
22
mF, 22 V Tantalum Chip Capacitors, Kemet #T491D226K22AS
C4A, B, C14A, B
47.0 pF Chip Capacitors, ATC
C5A, B
100 pF Chip Capacitors, ATC
C6
10.0 pF Chip Capacitor, ATC
C7A, B
2.7 pF Chip Capacitors, ATC
C8A, B
1.0
mF, 100 V Chip Capacitors, Vitramon #VJ3640Y105KXBAT
C9
10.0 pF Chip Capacitor, ATC
C10A, B
2.2
mF, 100 V Chip Capacitors, Vitramon #VJ3640Y225KXBAT
C11
5.1 pF Chip Capacitor, ATC
C12A, B
0.01
mF, 100 V Chip Capacitors, Kemet #VJ1210Y103KXBAT
C13
3.9 pF Chip Capacitor, ATC
C15
1.2 pF Chip Capacitor, ATC
L1A, B
130 nH, Coilcraft #132--11SM
L2A, B
#24 AWG, 3 Turns Loose, Fair Rite #2643706001
L3A, B
3.85 nH, Coilcraft #0906--4
L4A, B
5.0 nH, Coilcraft #A02T
R1A, B, R2A, B
R4A, B, R5A, B
180
?, 1/4 W Chip Resistors, Vishay Dale (1210)
R3A, B
12
?, 1/8 W Chip Resistors, Vishay Dale (1206)
PCB
MRF372 Printed Circuit Board Rev 1a, Rogers RO4350,
Height 30 mils,
εr
=3.48
Balun A, B
Vertical 860 MHz Broadband Balun, Printed Circuit Board
Rev 01, Rogers RO3010, Height 50 mils,
εr
= 10.2