STEVAL-TDR011V1 2-stage RF power amplifier with LPF based on the PD85006L-E and STAP85050 RF power transistors Features ■ Excellent thermal stability ■ Frequency: 400 - 470 MHz ■ Supply voltage: 13.6 V ■ Output power: 50 W ■ Current: < 10 A ■ Input power: 20 dBm ■ Harmonics level < -45 dBc ■ Output low-pass filter ■ Power detection ■ Temperature sensor L = 88.8 mm, W = 47.5 mm Description Table 1. The STEVAL-TDR011V1 demonstration board is a two-stage 50 W RF power amplifier which includes an output LPF (low-pass filter) for harmonics rejection. It also features power detection and a temperature sensor. Device summary Order code STEVAL-TDR011V1 The main purpose of the board is to demonstrate the functioning and performance of the PD85006L-E and the STAP85050 devices from the LdmoST plastic family of RF power transistors. The application is specifically designed for 2-way analog and digital mobile radios. March 2010 Doc ID 17340 Rev 1 1/12 www.st.com 12 Contents STEVAL-TDR011V1 Contents 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Circuit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2/12 Doc ID 17340 Rev 1 STEVAL-TDR011V1 Electrical data 1 Electrical data 1.1 Maximum ratings Table 2. Absolute maximum ratings Symbol VDD ID TCASE TA Parameter Value Unit Supply voltage(1) 16 V Drain current 12 A -10 to +85 °C +55 °C Operating case temperature Max. ambient temperature 1. Value related to the voltage regulator LD2980ABM50TR used in the application. 1.2 Electrical characteristics TA = +25 °C, VDD = 13.6 V, VAPC adjusted Table 3. Electrical specifications Symbol Test conditions Freq. Frequency range PIN @ POUT = 50 W ITOTAL @ POUT = 50 W Gain @ POUT = 50 W Min. Typ. 400 Max. Unit 470 MHz 20 dBm 10 Harmonics @ POUT = 50 W Doc ID 17340 Rev 1 A 27 dB -50 / -74 dBc 3/12 Typical performance STEVAL-TDR011V1 2 Typical performance Figure 1. Output power and drain current vs. Figure 2. frequency TDR011V1_01 60 9 30 50 8 Pout (W) 7 40 30 20 6 Vdd = 13.6V Idq = 200 + 2x 200mA Pin = 20dBm 5 Pout 10 Id 4 0 3 370 380 390 400 410 420 430 440 450 460 470 480 490 Frequency (MHz) Gain (dB) 32 Id (A) 10 70 Gain vs. frequency TDR011V1_02 28 26 Vdd = 13.6V Idq = 200 + 2x 200mA Pin = 20dBm 24 22 20 370 380 390 400 410 420 430 440 450 460 470 480 490 Frequency (MHz) Figure 3. Efficiency vs. frequency Figure 4. Input return loss vs. frequency TDR011V1-03 65 TDR011V1-04 0 60 -2 50 IRL (dB) Efficiency (%) 55 45 40 35 30 Vdd = 13.6V Idq = 200 + 2x 200mA Pin = 20dBm -4 -8 25 20 380 390 400 410 420 430 440 450 460 470 480 490 -10 380 390 400 410 420 430 440 450 460 470 480 490 Frequency (MHz) 4/12 Vdd = 13.6V Idq = 200 + 2x 200mA Pin = 20dBm -6 Frequency (MHz) Doc ID 17340 Rev 1 STEVAL-TDR011V1 Gain vs. output power Figure 6. TDR011V1_05 46 44 42 40 38 36 34 32 30 28 26 24 Harmonics TDR011V1_06 0 Vdd = 13.6V Idq = 200 + 2x 200mA -10 Harmonics (dB) Gain (dB) Figure 5. Typical performance Vdd = 13.6V Idq = 200 + 2x 200mA Pout = 50W -20 H2 H3 450 460 -30 -40 -50 -60 10 380 MHz 400 MHz 420 MHz 440 MHz 460 MHz 15 20 25 30 35 470 MHz 40 -70 45 50 -80 400 410 Pout (W) Figure 7. 420 430 440 470 Frequency (MHz) Vp1-Vp2 vs. output power Figure 8. TDR011V1-08 2.5 Vp1-Vp2 vs. output power TDR011V1-09 3 2.5 Vp1 - Vp2 (V) Vp1 - Vp2 (V) 2 1.5 1 0.5 2 1.5 1 0.5 0 380 390 400 410 420 430 440 450 460 470 0 30 32 34 36 38 40 42 44 46 Frequency (MHz) Pout (dBm ) 380 MHz 400 MHz 460 MHz 470 MHz 430 MHz Po= 47dBm Doc ID 17340 Rev 1 Po= 43dBm Po= 37dBm 5/12 Typical performance TDR011V1_07 10 Id (A) Drain current and temperature record on PCB surface NO FAN ONLY HEATSINK 100 8 80 6 60 4 40 2 T (°C) Figure 9. STEVAL-TDR011V1 20 Id 0 380 Temperature 400 420 440 460 0 480 Frequency (MHz) Table 4. Component list Designator Value Qty Manufacturer Order code Size/package C1 10 µF 1 Murata GRM31CR61E106KA12 1206 C1f, C2f, C3f 3.9 pF 3 ATC ATC 100B 3R9JW 1111 C1p, C2p 5 pF 2 Murata GRM1885C1H5R0CZ01 0603 C1t 10 pF 1 Murata GRM1885C1H100JA01 0603 C2 100 pF 1 Murata GRM42-6 COG 101J 50 1206 C2a, C3a, C5a, C6a 1 pF 4 Murata GRM1885C1H1R0CZ01 0603 C2t 0.1 µF 1 Murata GRM1885C1H101JA01 0603 C3 0.1 µF 1 Murata GRM188F5H1104ZA01 0603 C3p, C5p 1 pF 2 ATC ATC 100B 1R0JW 1111 C4, C9 0.1 µF 2 Murata GRM188F51H104ZA01 0603 C4p, C6p 9.1 pF 2 ATC ATC 100B 9R1JW 1111 C5, C8, C8a, C10, C11, C12 100 pF 6 Murata GRM1885C1H101JA01 0603 C5f, C6f 5.6 pF 2 ATC ATC 100B 5R6JW 1111 C6, C7 47 pF 2 Murata GRM1885C1H470JA01 0603 C9a 4.7 µF 1 Murata GRM31CF51H475ZA01 1206 C13 18 pF 1 Murata GRM1885C1H180JA01 0603 C14 15 pF 1 Murata GRM1885C1H150JA01 0603 C14a, C14b 18 pF 2 Murata GRM1885C1H180JZ01B 0603 C15 5.6 pF 1 Murata GRM1885C1H5R6DZ01 0603 C16 39 pF 1 Murata GRM1885C1H390JA01 0603 6/12 Doc ID 17340 Rev 1 STEVAL-TDR011V1 Table 4. Typical performance Component list (continued) Designator Value Qty Manufacturer Order code Size/package C17, C18 150 pF 2 Murata GRM1885C1H151JA01 0603 C19, C20 39 pF 2 Murata ERF1DM5C1H390JD01B 0505 C21 33 pF 1 Murata MA59C0G330J150 0505 C22a 12 pF 1 Murata ERF1DM5C1H120JD01B 0505 C22b 4.7 pF 1 Murata MA59C0G4R7C150 0505 Caf 100 pF 1 ATC ATC 100B 101JW 1111 Ci 2.2 µF 1 Murata GRM188R71A225KE15 0603 Co 1 µF 1 Murata GRM188R71C105KA12D 0603 CS1 1 Integration Associates, Inc IA2410 SOT-23 5-pin CS2 1 Integration Associates, Inc IA4210 SOT-23 5-pin D1a, D2a 2 MACOM MA4P7101F-1072T D1p, D2p 2 STMicroelectronics BAS70-04WFILM SOT-323 D3a 1 STMicroelectronics MA4P7436-1141T SOD-323 D4a 1 MACOM MA4P275-1141T SOD-323 DB 1 MACOM IA4910 TSSOP 16-pin J1 1 Integration Associates, Inc 55935-1410 14-pin, single row Jb 1 Molex L04220211000 2-pin, 3.5 mm pitch JP 2 pins step 2.54 mm -90o 1 LMI 5-826947-0 L1 33 nH 1 Tyco Electronics AS080447-33N L1a 470 nH 1 Korin Electronics 0805LS-471X_BC L1f, L2f, L3f 9.3 nH 3 Coilcraft AS120252-9R3N L2 12.55 nH 1 Korin Electronics 1606-10 1606 L2a, L3a 6.8 nH 2 Coilcraft 0603HC-6N8X_BW 0603HC L3 5.4 nH 1 Coilcraft 0906-5 0906 L4 5.4 nH 1 Coilcraft 0906-4 0906 L5, L6 5 nH 2 Korin Electronics A02T PD1, PD2 2 STMicroelectronics STAP85050 (or 2x PD85035S-E) PSO-10 PD85006L-E 1 STMicroelectronics PD85006L-E PFLAT TL1 1 W=0.9 mm, L=2 mm TL2 1 W=0.9 mm, L=5 mm Doc ID 17340 Rev 1 0805LS 7/12 Typical performance Table 4. STEVAL-TDR011V1 Component list (continued) Designator Value Qty Manufacturer Order code Size/package TL3, TL15 2 W=0.9 mm, L=8 mm TL4, TL6, TL16 3 W=0.9 mm, L=4 mm TL5 1 W=0.9 mm, L=1.2 mm TL9 1 W=0.9 mm, L=5.7 mm TL10, TL11, TL18 3 W=0.9 mm, L=6 mm TL12, TL13 2 W=0.9 mm, L=6.5 mm TL14, TL17 2 W=0.9 mm, L=2.5 mm R1, R8, R9 220 Ω 3 Tyco Electronics R1a, R2, R7, R10 1 kΩ 4 Murata R1p, R2p, R3p, R4p 20 kΩ 4 Tyco Electronics 0603 R1t 100 kΩ 1 Tyco Electronics 0603 R3, R6, R11 2.2 kΩ 3 Tyco Electronics 0603 R4, R5 15 kΩ 2 Tyco Electronics 0603 R5p, R6p, R7p, RG3, RG4 50 Ω 5 Tyco Electronics 0603 R12 330 Ω 1 Tyco Electronics 0603 R13, R14 1Ω 2 Tyco Electronics 0603 RF ant, RF in, RF out PA, to receiver 0603 PVZ2A102C04B00 Johnson 142-0701-801 60 Mils RG1, RG2 200 Ω 2 Tyco Electronics 0603 RO1 5 kΩ 2 Tyco Electronics 0603 RO2 2 kΩ 2 Tyco Electronics 0603 Thermal Sensor 1 STMicroelectronics STLM20 SOT323-5 Voltage regulator 1 STMicroelectronics LD2980ABM50TR SOT-23-5 8/12 Doc ID 17340 Rev 1 STEVAL-TDR011V1 3 Circuit layout Circuit layout Figure 10. Test fixture component layout Doc ID 17340 Rev 1 9/12 10/12 C12 2 INHIBIT 3 Doc ID 17340 Rev 1 C2t L3 GND + 5V TL2 GND Ci 1 Thermal Sensor R1t Vi TL3 R12 C1t V(T) Thermal Sensor C14 L4 C11 C3 VGS1 VGS0 PD85006L R11 R10 R9 C14a TL4 C14b L2 C10 C15 TL5 C4 C16 TL6 C18 C17 C5 C6 R1 R14 R13 R4 VP1 VP2 R6 RF Ant R3 R2 R7 C2p C7 R5 C8 R8 C3f L3f R7p R4p PD2 PD1 C9 C6f C6p Vo1 TL11 TL9 TL10 C2f C5p TL14 L2f C5f R3p R2p R6p D1p TL13 C20 C19 TL12 L1 C2 C1 C3p C21 TL15 C1f Vo2 Jb 2 1 TL16 L1f R5p C4p D2p R1p Cif C1p Vo1 Tx/Rx Power Detector L5 Vdd J1 Caf C22a TL17 C22b Filter TL18 L6 Ver 0.2 Pinout GND nc INHIBIT nc nc VP2 VP1 nc V(T) nc nc nc VGS1 VGS0 C13 TL1 VR 14 13 12 11 10 9 8 7 6 5 4 3 2 1 RF In JP Vo GND2 1 GND Co 5 4 INHIBIT +5V Schematic diagram STEVAL-TDR011V1 Schematic diagram Figure 11. STEVAL-TDR011V1 schematic diagram STEVAL-TDR011V1 5 Revision history Revision history Table 5. Document revision history Date Revision 31-Mar-2010 1 Changes Initial release. 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