300 W LDMOS pulsedpowertransistor for TCAS and IFF applications at frequencies from
1030 MHz to 1090 MHz.
Table 1.Typical performance
RF performance at T
δ
=2%.
Mode of operationfI
Pulsed class-AB1030 to 10901503230016.557
CAUTION
= 25°C in a common source class-AB production test circuit; tp=50µs;
case
Dq
(MHz)(mA)(V)(W)(dB)(%)
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling.
V
DS
P
L
G
p
η
D
1.2 Features
n Typical performance at frequencies between 1030 MHz and 1090 MHz, a supply
voltage of 32 V, an IDq of 150 mA, a tp of 50 µs and a δ of 2 %:
u Output power = 300 W
u Power gain = 16.5 dB (typ)
u Efficiency = 57 % (typ)
n Easy power control
n Excellent ruggedness
n High efficiency
n Excellent thermal stability
n Designed for operation in 1030 MHz to 1090 MHz band
n Internally matched for ease of use
n Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances
(RoHS)
1.3 Applications
n RF power amplifiers for Avionics applications in the 1030 MHz to 1090 MHz frequency
The BLA1011-300 is capable of withstanding a load mismatch corresponding to
VSWR = 10 : 1 through all phases under the following conditions: VDS=32V;
IDq= 150 mA; PL= 300 W; f = 1030 MHz to 1090 MHz.
80
η
D
(%)
60
(1)
40
20
0
0400300100200
(2)
(3)
(1) f = 1030 MHz
(2) f = 1060 MHz
(3) f = 1090 MHz
BLA1011-300 in a wideband circuit; VDS=32V;
IDq= 150 mA; tp=50µs; δ = 2 %.
Fig 2. Drain efficiency as functions of load power;
typical values
001aag190
PL (W)
20
G
p
(dB)
16
12
8
4
0
0400300100200
(2)
(3)
(1)
001aag191
PL (W)
(1) f = 1030 MHz
(2) f = 1060 MHz
(3) f = 1090 MHz
BLA1011-300 in a wideband circuit; VDS=32V;
IDq= 150 mA; tp=50µs; δ = 2 %.
Fig 3. Power gain as a function of load power; typical
Product data sheetRev. 02 — 5 February 20085 of 11
Page 6
NXP Semiconductors
8.Test information
C10
BLA1011-300
Avionics LDMOS transistors
C5
C12
C8
R1
C6
C7
C9
C11
L1
R2
C1
T1
C2
T2
T3T4
C3
T6 T7 T8
T5
C4
001aah710
Printed-Circuit Board (PCB): Rogers Duroid 6006; εr = 6.2 F/m; height = 0.64 mm.
See Table 9 for list of components.
Fig 6. Component layout for common source class-AB pulsed production test circuit
Table 9.List of components (see
Figure 6)
To ensure good power supply of the device,adding an electrolytic capacitor close to the supply connection of the circuit may be required. The actual capacitor value may differ depending on the pulse
format, the quality of the power supply and the length of the connecting wires to the power supply.In
Product data sheetRev. 02 — 5 February 20086 of 11
Page 7
NXP Semiconductors
BLA1011-300
Avionics LDMOS transistors
Table 9.List of components (see
To ensure good power supply of the device,adding an electrolytic capacitor close to the supply connection of the circuit may be required. The actual capacitor value may differ depending on the pulse
format, the quality of the power supply and the length of the connecting wires to the power supply.In
µ
general a value of 470
Component DescriptionValueRemarks
R2metal film resistor49.9 Ω
T1stripline-(W × L) 5 mm × 9mm
T2stripline-(W × L) 1.25 mm × 7.5 mm
T3stripline-(W × L) 15 mm × 11 mm
T4stripline-(W × L) 40 mm × 16.8 mm
T5stripline-(W × L) 1 mm × 6.25 mm
T6stripline-(W × L) 4.95 mm × 3.55 mm
T7stripline-(W × L) 9.4 mm × 3mm
T8stripline-(W × L) 12 mm × 2.45 mm
[1] American Technical Ceramics type 100A or capacitor of same quality.
[2] American Technical Ceramics type 100B or capacitor of same quality.
Product data sheetRev. 02 — 5 February 20088 of 11
Page 9
NXP Semiconductors
BLA1011-300
Avionics LDMOS transistors
10. Abbreviations
Table 10.Abbreviations
AcronymDescription
IFFIdentification Friend or Foe
LDMOSLaterally Diffused Metal Oxide Semiconductor
LDMOSTLaterally Diffused Metal-Oxide Semiconductor Transistor
RFRadio Frequency
TCASTraffic Collision Avoidance System
VSWRVoltage Standing-Wave Ratio
Product data sheetRev. 02 — 5 February 20089 of 11
Page 10
NXP Semiconductors
12. Legal information
12.1Data sheet status
BLA1011-300
Avionics LDMOS transistors
Document status
Objective [short] data sheetDevelopmentThis document contains data from the objective specification for product development.
Preliminary [short] data sheet QualificationThis document contains data from the preliminary specification.
Product [short] data sheetProductionThis document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product statusof device(s) described in this document mayhave changed since this document waspublished and maydiffer in caseof multiple devices.The latest product status
information is available on the Internet at URL
[1][2]
Product status
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[3]
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Definition
malfunction of an NXP Semiconductors product can reasonably be expected
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Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum RatingsSystemofIEC 60134) maycause permanent
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values for extended periods may affect device reliability.
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