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MRF9085LSR5

P1-P3P4-P6P7-P9P10-P12
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ARCHIVE INFORMATION
4-4
Freescale Semiconductor
RF Product Device Data
MRF9085LR3 MRF9085LSR3
Figure 1. 865-895 MHz Broadband Test Circuit Schematic
RF
INPUT
RF
OUTPU
T
Z1 Z2
V
GG
C1
C15
B1
+
Z3 Z4
DUT
V
DD
C19
B3
C16
+
L2
Z11 Z12 Z16
B1, B2, B3 Short Ferrite Beads, Surface Mount
C1, C9, C15, C16 47 pF Chip Capacitors, ATC
C3 5.6 pF Chip Capacitor, ATC
C4, C13 0.8 - 8.0 Variable Capacitors, Gigatrim
C5, C6, C12 8.2 pF Chip Capacitors, ATC
C7, C17, C18, C19 10 mF, 35 V Tantalum Surface Mount Capacitors, Kemet
C8 20 K pF Chip Capacitor, ATC
C10, C11 16 pF Chip Capacitors, ATC
C14 0.6 - 4.5 Variable Capacitor, Gigatrim
L1 7.15 nH Inductor, Coilcraft
L2 17.5 nH Inductor, Coilcraft
N1, N2 N- Type Panel Mount, Stripline, M/A - Com
WB1, WB2 5 Mil BeCu Shim (0.225 x 0.525)
Z1 0.219″ x 0.080″ Microstrip
Z2 0.150″ x 0.080″ Microstrip
Z3 0.851″ x 0.080″ Microstrip
Z4 0.125″ x 0.220″ Microstrip
Z5 0.123″ x 0.220″ Microstrip
Z6 0.076″ x 0.220″ Microstrip
Z7 0.261″ x 0.220″ Microstrip
Z8 0.220″ x 0.630″ x 0.200″ Taper
Z9 0.240″ x 0.630″ Microstrip
Z10 0.060″ x 0.630″ Microstrip
Z11 0.067″ x 0.630″ Microstrip
Z12 0.233″ x 0.630″ Microstrip
Z13 0.630″ x 0.220″ x 0.200″ Taper
Z14 0.200″ x 0.220″ Microstrip
Z15 0.055″ x 0.220″ Microstrip
Z16 0.088″ x 0.220″ Microstrip
Z17 0.226″ x 0.220″ Microstrip
Z18 0.868″
x 0.080″ Microstrip
Z19 0.129″ x 0.080″ Microstrip
Z20 0.223″ x 0.080″ Microstrip
PCB Arlon GX-0300-55 -22, 30 mils
ε
r
= 2.55
C11
Z17 Z20
Z7
C8 C9
L1
C6
C5
C10
C17
C13
Z10
C7 C18
B2
C3C4
Z5 Z6 Z9
Z18 Z19
C14
Z13
Z8
Z14
C12
Z15
+
+++
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MRF9085LR3 MRF9085LSR3
4-5
Freescale Semiconductor
RF Product Device Data
Figure 2. 865-895 MHz Broadband Test Circuit Component Layout
C1
C4
C3
C5
C7
C9
L1
B2
C8
B1
C12
C13
C14
C10
C6
C15
V
GG
V
DD
B3
C17 C19
C18
WB1
C16
L2
C11
WB2
CUTOUT
MRF9085
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.
AR
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ARCHIVE INFORMATION
4-6
Freescale Semiconductor
RF Product Device Data
MRF9085LR3 MRF9085LSR3
TYPICAL CHARACTERISTICS
−80
−40
−60
−20
20
0
40
IMD
P
out
, OUTPUT POWER (WATTS) PEP
f, FREQUENCY (MHz)
G
ps
, POWER GAIN (dB)
860
18
Figure 3. Class AB Broadband Circuit Performance
14
11
P
out
, OUTPUT POWER (WATTS) PEP
19
7
Figure 4. Power Gain, Efficiency, IMD versus
Output Power
1
9
1
−70
Figure 5. Intermodulation Distortion Products
versus Output Power
10010
−10
−30
−60
−50
−40
11
13
15
13
12
V
DD
= 26 Vdc
P
out
= 90 W (PEP)
I
DQ
= 700 mA
Two−Tone, 100 kHz Tone Spacing
865
17
15
17
10 100
16
870 875 880 885 890 895 900
P
out
, OUTPUT POWER (WATTS) AVG.
P
out
, OUTPUT POWER (WATTS) CW AVG.
G
ps
, POWER GAIN (dB)
18
12
Figure 6. Power Gain, Efficiency versus Output
Power
1
13
10
7
Figure 7. Power Gain, Efficiency, ACPR versus
Output Power
1
19
15
11
9
13
17
14
15
16
17
10 100
G
ps
, POWER GAIN (dB)
, DRAIN EFFICIENCY (%)h
IMD, INTERMODULATION DISTORTION (dBc)
−20
60
50
40
30
20
10
0
, DRAIN EFFICIENCY (%)h
, DRAIN EFFICIENCY (%) & ACPR (dB)h
−36
−34
−32
−30
−28
35
40
45
50
1.00
1.25
1.50
1.75
2.00
, DRAINh
EFFICIENCY (%)
IMD, INTERMODULATION
DISTORTION (dBc)
VSWR
G
ps
h
VSWR
−40
−60
−20
20
0
40
60
IMD, INTERMODULATION DISTORTION (dBc)
V
DD
= 26 Vdc
I
DQ
= 700 mA
f1 = 880.0 MHz
f2 = 880.1 MHz
G
ps
h
IMD
V
DD
= 26 Vdc
I
DQ
= 700 mA
f1 = 800.0 MHz
f2 = 800.1 MHz
3rd Order
5th Order
7th Order
G
ps
h
V
DD
= 26 Vdc
I
DQ
= 700 mA
f = 880 MHz
Single Tone
G
ps
h
V
DD
= 26 Vdc
I
DQ
= 700 mA
f = 880 MHz
750 kHz
1.98 MHz
G
ps
, POWER GAIN (dB)
19
P1-P3P4-P6P7-P9P10-P12

MRF9085LSR5

Mfr. #:
Buy MRF9085LSR5
Manufacturer:
NXP Semiconductors
Description:
FET RF 65V 880MHZ NI-780S
Lifecycle:
New from this manufacturer.
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