STEVAL-TDR022V1

STEVAL-TDR022V1 RF power amplifier using the PD85025-E for UHF OFDM and 2-way mobile radios Features ■ Excellent thermal stability ■ Frequency: 340 - 520 MHz ■ Supply voltage: 15 V ■ Output power: 10 WPEP ■ Gain: 16.5 dB min. ■ IMD3 < -27 dBc at 10 WPEP ■ Load mismatch: 20:1 ■ BeO free amplifier Description Mechanical specification: L = 60 mm, W = 30 mm The STEVAL-TDR022V1 is an demonstration board using PD85025-E LDMOS transistor and designed for UHF OFDM and 2-way mobile radios. Table 1. Device summary Order code STEVAL-TDR022V1 October 2010 Doc ID 18079 Rev 1 1/8 www.st.com 8 Contents STEVAL-TDR022V1 Contents 1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Circuit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2/8 Doc ID 18079 Rev 1 STEVAL-TDR022V1 1 Electrical characteristics Electrical characteristics TA = + 25 °C, VDD = 15 V, Idq = 220 mA Table 2. Electrical specification Symbol Test conditions Freq Frequency range POUT 2 Tones test - DF = 600 kHz Gain @ POUT = 10 WPEP ID Min. Typ. 340 Unit 520 MHz 10 WPEP 16.5 dB Drain current @ 10W PEP nd Max. 1.25 A H2 2 harmonic @ POUT = 10 WPEP -37 / -60 dB H3 3rd harmonic @ POUT = 10 WPEP -60 / -68 dB VSWR Load mismatch all phases @ POUT = 10 W Doc ID 18079 Rev 1 20:1 3/8 Test circuit STEVAL-TDR022V1 2 Test circuit Figure 1. Test circuit schematic R1 D1 B1 MSub R2 MSUB FR4_60 H=1.52 mm L1 L3 R5 L2 L4 L5 C7 C5 L7 C9 C10 C12 P2 C11 C8 C13 LDMOS Model=PD85025-E 4/8 L6 R6 R4 C16 C4 C14 C15 C6 C3 C1 R3 P1 B2 C2 Doc ID 18079 Rev 1 C17 Vcc_2P STEVAL-TDR022V1 Circuit layout 3 Circuit layout Figure 2. Circuit layout Table 3. Component part list Component ID Description B1 Value Case size Manufacturer Part code Ferrite bead Panasonic EXCELDRC35C B2 Ferrite bead Panasonic EXCELDRC35C C1, C2 Capacitor 120 pF 1206 Murata GRM42-6 COG 121J 50_ C3 Capacitor 1 nF 1206 Murata GRM42-6 COG 102J 50 C4 Capacitor 100 nF 1206 Murata GRM42-6_X7R 104K 50_ C5 Capacitor 10 µF SMT Panasonic EEVHB1V100P C6, C12 Capacitor 180 pF 100B ATC ATC 100B 181JW C7 Capacitor 22 pF 100B ATC ATC 100B 220JW C8 Capacitor 47 pF 100B ATC ATC 100B 470JW C9 Capacitor 36 pF 100B ATC ATC 100B 360JW C10 Capacitor 22 pF 100B ATC ATC 100B 220JW C11 Capacitor 47 pF 100B ATC ATC 100B 470 JW C16 Capacitor 6.8 pF 100B ATC ATC 100B 6R8BW C13 Capacitor 51 pF 100B ATC ATC 100B 510JW C14 Capacitor 10 µF Murata GRM32NF51E106ZA01B C15 Capacitor 330 nF 1206 Murata GRM42-6_X7R 334K 50_ C17 Capacitor 9.1 pF 100B ATC ATC 100B 9R1JW D1 Zener diode 5.1 V SOD110 Philips BZX284C5V1 L1 Inductor 22 nH Coilcraft B07TJLB Doc ID 18079 Rev 1 5/8 Circuit layout Table 3. STEVAL-TDR022V1 Component part list (continued) Component ID Description Value L2, L7 Inductor L3, L5 Manufacturer Part code 12.5 nH Coilcraft A04TJLB Inductor 2,5 nH Coilcraft A01TKLB L4, L6 Inductor 5 nH Coilcraft A02TJLB R1 Resistor 1 kΩ Tyco Electronics 01623440-1 R2 Potentiometer 10 kΩ Bourns Electronics 3214W-1-103E R3 Resistor 16 Ω 1206 Bourns Electronics R7 Resistor 0Ω 1206 Bourns Electronics R4, R5, R6 Resistor 2.2 Ω 603 VISHAY D11/CRCW0603 Vcc_2P Connector DC 2 poli 2.54mm Phoenix Contact 1725656 P1_P2 RF Connector SMA_Female Flange solder Q Board 6/8 LDMOS PD85025-E Case size 1206 1.54 mm STMicroelectronics FR-4 THk=0.060" 2OZ Cu both sides Doc ID 18079 Rev 1 PD85025-E STEVAL-TDR022V1 4 Revision history Revision history Table 4. Document revision history Date Revision 11-Oct-2010 1 Changes Initial release Doc ID 18079 Rev 1 7/8 STEVAL-TDR022V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 8/8 Doc ID 18079 Rev 1