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DB-960-90W
90W / 26V / 925-960 MHz PA using 2x PD57060S The LdmosST FAMILY
PRELIMINARY DATA
N-CHANNEL ENHANCEMENT-MODE LATERAL MOSFETs * EXCELLENT THERMAL STABILITY * COMMON SOURCE CONFIGURATION * POUT = 90 W min. with 13 dB gain over 925-960 MHz * 10:1 LOAD VSWR CAPABILITY * BeO FREE AMPLIFIER.
DESCRIPTION The DB-960-90W is a common source N-Channel enhancement-mode lateral Field-Effect RF power amplifier designed for GSM/GPRS/EDGE base station applications. The DB-960-90W is designed in cooperation with Europeenne de Telecomunications S.A. (www.etsa.rf), for high gain and broadband performance operating in common source mode at 26 V, capable of withstanding load mismatch up to 10:1 all phases and with harmonics lower than 30 dBc.
ORDER CODE DB-960-90W
MECHANICAL SPECIFICATION L=80 mm W=50 mm H=10 mm
ABSOLUTE MAXIMUM RATINGS (TCASE = 25oC)
Symbol VDD ID PDISS TCASE Pamb Supply voltage Drain Current Power Diss. at Tcase = +85C Operating Case Temperature Max. Ambient Temperature Parameter Value 32 12 145 -20 to +85 +55 Unit V A W
o o
C C
November, 20 2002
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DB-960-90W
ELECTRICAL SPECIFICATION (Tamb = +25oC, Vdd = 26V, Idq = 2 x 200 mA)
Symbol FREQ. Gain P1dB Flatness Flatness ND at P1dB IRTL Harmonic VSWR Spurious IMD3 Frequency Range POUT = 90 W Over frequency range: 925 - 960 MHz Over frequency range and @ POUT = 90 W POUT from 0.1W to 90 W P1dB Input return Loss POUT from 0.1W to 90 W POUT = 90 W Load Mismatch all phases @ POUT = 90 W 10:1 VSWR all phases and POUT from 0.1 to 90 W POUT = 90 WPEP 10:1 -76 -25 dBc dBc 40 45 -20 -15 -30 Test Conditions Min. 925 12 90 13 100 +/- 0.5 1 Typ. Max. 960 Unit MHz dB W dB dB % dB dBc
TYPICAL PERFORMANCE Output Power vs. Input Power
Pout (W)
120
Power Gain vs. Frequency (Pout = 90W)
Gp (dB)
15
940 MHz
100
14
960 MHz 925 MHz
80
13
60 12 40
20
Vdd = 26 V Idq = 2 x 200 mA
11
Vdd = 26 V Idq = 2 x 200 mA
0 0 2 4 6 8
10 910 920 930 940 950 960 970
Pin (W)
F (MHz)
Output Power and Efficiency vs. Frequency
P1dB (W)
120
Nd (%)
80
100
P1dB
70
80
60
60
Eff.
50
40
Vdd = 26 V Idq = 2 x 200 mA
40
20 910 920 930 940 950 960
30 970
F (MHz)
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DB-960-90W
TEST FIXTURE COMPONENT LAYOUT
CV1
CV2
Ref. ETSA c07/2000 - Ed1
TEST CIRCUIT PHOTOMASTER
Ref. ETSA c07/2000 - Ed1
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DB-960-90W
TEST CIRCUIT COMPONENT PART LIST
COMPONENT T1, T2 C1, C2, C23, C24 C3, C4 C5, C6, C17, C18 C7, C8, C9, C10, C11, C13 C12, C14 C15, C16 C19, C20 C21, C22, C26, C27 C25 CV1, CV2 P1, P2 R1,R7 R2 R3, R4 R5, R6 D1, D2 SM1, SM2 BOARD SUBSTRATE BACK SIDE CERAMIC CHIP CAPACITORS DESCRIPTION PD57060S TRANSISTOR 47pF - 500V CERAMIC CHIP CAPACITOR 3.3pF - 500V CERAMIC CHIP CAPACITOR 100pF - 500V CERAMIC CHIP CAPACITOR 10pF - 500V CERAMIC CHIP CAPACITOR 6.8pF - 500V CERAMIC CHIP CAPACITOR 100nF - 63V CERAMIC CHIP CAPACITOR 1F / 35V ELECTROLYTIC CAPACITOR 3.3pF - 500V CERAMIC CHIP CAPACITOR 0.5pF - 500V CERAMIC CHIP CAPACITOR ADJUSTABLE CAPACITOR 0.6 - 4.5pF / 500V 10K Ohms MULTITURN POTENTIOMETER 100 Ohms 1/4W 1206 SMD CHIP RESISTOR 50 Ohms 30W - 4GHz LOAD 4.7K Ohms 1/4W 1206 SMD CHIP RESISTOR 10K Ohms 1/4W 1206 SMD CHIP RESISTOR ZENER DIODE 5V - 500 mW SOD80 90 SMD HYBRID COUPLER ANAREN Xinger 1304-3 METCLAD MX3-30-C1/10C THK 0.762 mm Cu 35 TEFLON-GLASS Er = 2.55 COPPER FLANGE 2 mm THICKNESS ATC100B or EQUIVALENT
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is registered trademark of STMicroelectronics (R) 2001 STMicroelectronics - All Rights Reserved All other names are the property of their respective owners. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com
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