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DB-55008L-450
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RF power amplifier using 1 x PD55008L-E N-channel enhancement-mode lateral MOSFETs
Preliminary Data
Features

Excellent thermal stability Frequency: 318 - 450 MHz Supply voltage: 13.6 V Output power: 8 W Power gain: 14.6 0.6 dB Efficiency: 52 % - 73 % BeO free amplifier
Description
The DB-55008L-450 is a common source N-channel enhancement-mode lateral field effect RF power amplifier designed for UHF mobile applications. Table 1.
Mechanical specification: L = 60 mm, W = 30 mm
Device summary
Order codes DB-55008L-450
March 2009
Rev 1
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This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Contents
DB-55008L-450
Contents
1 www..com Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 3 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1 VDD = 13.6 V, IDQ = 200 mA, PIN = 25 dBm . . . . . . . . . . . . . . . . . . . . . . . . 5
5 6 7 8 9
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Circuit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Mounting indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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DB-55008L-450
Electrical data
1
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Electrical data
Maximum ratings
Table 2.
Symbol VDD ID TCASE TA Supply voltage Drain current Operating case temperature Max. ambient temperature
1.1
Absolute maximum ratings
Parameter Value 13.6 1.5 +20 to +85 +55 Unit V A C C
2
Electrical characteristics
TA = +25 C, VDD = 13.6 V, Idq = 200 mA, unless otherwise specified Table 3.
Symbol f Pout Gp ND H2 H3
RF data
Parameters Frequency range Output power Power gain Efficiency 2nd harmonic 3rd harmonic PIN = 25 dBm PIN = 25 dBm PIN = 25 dBm PIN = 25 dBm Test conditions Min 318 7 8 14.6 0.6 52 - 73 -30 -55 Typ Max 450 Unit MHz W dB % dBc dBc
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Impedance
DB-55008L-450
3
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Impedance
Figure 1. Impedance graphic
D
ZDL
ZGS IN
G
S
Table 4.
Impedance data
f(MHz) 310 330 350 370 390 410 430 450 470 ZGS () 5.33 + j1.67 5.26 + j2.74 5.54 + j3.39 6.18 + j3.81 6.29 + j3.42 5.26 + j3.00 3.82 + j3.53 2.45 + j4.87 1.75 + j6.52 ZDL () 3.79 + j4.78 3.87 + j5.75 4.29 + j6.45 5.06 + 7.10 5.57 + j7.07 5.57 + j6.63 4.90 + j6.11 3.30 + j3.39 2.21 + j7.40
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Typical performance
4
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Typical performance
VDD = 13.6 V, IDQ = 200 mA, PIN = 25 dBm
Gain vs frequency Figure 3. Pout and efficiency vs frequency
4.1
Figure 2.
Figure 4.
Input return loss vs frequency
Figure 5.
Harmonics vs frequency, Pout = 8 W
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Typical performance Figure 6. Output power vs input power_Vdd = 13.6 V, Idq = 200 mA
DB-55008L-450
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DB-55008L-450
Test circuit
5
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Test circuit
Test circuit schematic
MSub M Sub1 FR4 H=60mi l R3 B2 B1 C13 C14 C15 VDD
C12 D1 R4 R2 C11 C4 C3 L2 C6 T L4 L4 C9 C17 TL6 P2 C7 C8 L5
R1 P1 TL5 L3 C16 C2 L1 T L2 C1 TL1
T L3
PD55008L
Table 6.
Components part list for DB-55008L-450
Description Ferrite Bead Ferrite Bead Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Inductor Inductor Inductor Resistor Resistor Resistor 56 pF 30 pF 20 pF 27 pF 6.8 pF 10 pF 120 pF 1 nF 10 nF 10 F 270 pF 220 pF 2.5 nH 8 nH 22 nH 24 20 1k 1206 1206 1206 100B 100B 100B 100B 100B 100B 1206 1206 1206 SMT 100A 100B Value Case size Manufacturer Panasonic Panasonic ATC ATC Murata ATC ATC ATC Murata Murata Murata Panasonic ATC ATC Coilcraft Coilcraft Coilcraft Tyco electronics Tyco electronics Tyco electronics Part code EXCELDRC35C EXCELDRC35C ATC 100B 560JW ATC 100B 330JW ATC 100B 200JW ATC 100B 270JW ATC 100B 6R8CW ATC 100B 100JW GRM42-6C0G121J50 GRM42-6C0G102J50 GRM42-6X7R103K50 EEVHB1V100P 700A271KW150X ATC 100B 221FW A01TJ A03TJ B07TJ 01623440-1 01623440-1 01623440-1
Component ID B1 B2 C1 C2,C3 C4 C6, C7 C8 C9 C11,C12 C13 C14 C15 C16 C17 L1,L2 L3,L4 L5 R1 R2 R3
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Test circuit Table 6. Components part list for DB-55008L-450 (continued)
Description Value Case size Manufacturer BOURNS ELECTRONICS PHILIPS W=4.98 mm,L=5.6 mm W=2.8 mm,L=1.3 mm Transmission line W=4.98 mm,L=5.5 mm W=2.8 mm,L=1.7 mm W=2.8 mm,L=4.6 mm W=2.8 mm,L=4.6 mm LDMOS STMicroelectronics FR-4 THk=0.060" 2OZ Cu both sides
DB-55008L-450
Component ID R4
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Part code 3214W-1-103E BZX284C5V1
Potentiometer 10 k Zener diode 5.1 V
D1
TL1 TL2 TL3 TL4 TL5 TL6 PD55008L Board
PD55008L-E
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Circuit layout
6
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Circuit layout
Figure 7. Test fixture component layout
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Mounting indications
DB-55008L-450
7
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Mounting indications
Figure 8. Standard SMD mounting
Pin1
Copper foil
PCB heatsink heat transfer
18 holes ( 0.5 mm)
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DB-55008L-450
Package mechanical data
8
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Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. Table 7.
Dim. Min A A1 A3 AA b c D d E E2 e f g h 2.49 0.15 0.43 0.64 Typ 0.90 0.02 0.24 0.25 0.51 0.71 5.00 0.30 5.00 2.57 1.27 3.37 0.74 0.21 2.64 0.098 0.35 0.58 0.79 0.006 0.017 0.025 Max 1.00 0.05 Min Typ 0.035 0.001 0.009 0.01 0.020 0.028 0.197 0.011 0.197 0.101 0.050 0.132 0.03 0.008 0.104 0.014 0.023 0.031 Max 0.039 0.002
PowerFLATTM mechanical data
mm inch
Figure 9.
PowerFLATTM package dimensions
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Package mechanical data Table 8.
Dim. Min
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DB-55008L-450
PowerFLATTM tape and reel dimensions
mm. Typ 5.25 5.25 1.1 Max 5.35 5.35 1.2 Min 0.12 0.12 0.02 inch Typ 0.13 0.13 0.02 Max 0.13 0.13 0.02
Ao Bo Ko
5.15 5.15 1.0
Figure 10. PowerFLATTM tape and reel
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DB-55008L-450
Revision history
9
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Revision history
Table 9.
Date 18-Mar-2009
Document revision history
Revision 1 First release Changes
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DB-55008L-450
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