TD-SCDMA/TD-LTE RF PA Solutions
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1 August, 2009 TD-SCDMA/TD-LTE RF PA Solutions Scott Li ( 李成进 )
2 Agenda TD-SCDMA system and PA specification introduction TD-SCDMA PA market trend Freescale TD-SCDMA roadmap and solutions Typical TD PA solution performance introduction Freescale TD-LTE roadmap and solutions Typical TD-LTE PA solution performance introduction Conclusion 2
3 TD-SCDMA/TD-LTE NodeB/BTS Architecture Control RF PARF PA RF PA RF Small RF Sign Small RF Sign Small Sign U/D Conv. U/D Conv. U/D Conv. Physical Layer Mac Layer Network Interface MSC8156/44 MPC85/3xx MPC74/86xx Freescale RF Products MSC8156 StarCore DSP PowerQUICC Integrated Communications Power Architecture MPU 3
4 Typical 8 Antennas system An Example for TD-SCDMA RF system 4
5 Pre-driver MMG3H21 Driver MMG3014N Typical TD-SCDMA RRU PA MW6S004N - MRF7D20040H / MD7IC2050N (10W Doherty PA) MD7IC21100N (20W Doherty PA) Temp. Compen. To Filter PI resistor PI resistor Power Control High Isol. Switch BPF GPA LNA Temp. Monitor 5
6 RF specification for TD-SCDMA Frequency ITU: 1885MHz-1920MHz,2010MHz-2025MHz China:1880MHz-1920MHz,2010MHz-2025MHz,2300MHz-2400MHz Transmitter ACLR BS adjacent channel offset below the first or above the last carrier frequency used 1.6MHz 3.2MHz ACLR limit 40dB 45dB 6
7 Frequency: Common RF PA requirement CMCC round1 and round2 equipments focus on banda(1880mhz-1920mhz). From round3, bandb(2010mhz- 2025MHz) equipments also become popular. Initial TD- LTE activities at GHz. Linearity requirement for power amplifier 1.6MHz: 43dB for all temperature 3.2MHz: 48dB for all temperature (This is just a common requirement. Different customer has different requirement.) Output power requirement 8 antennas smart antenna system: Moving from 2-3W to 5-10W, 6/9/12 carrier PA Single antenna system: Moving from ~10W to 20-30W, 6/9/12 carrier PA Others: For repeaters, A lot of different power levels from W 7
8 TD PA Market Trend - High Efficiency -Low Cost - Integration - CRF+DPD+Doherty - More frequency 8
9 TDSCDMA Solution Landscape MRF7S21110H MRF7S19080H 2 ( Doherty ) >20W <10 W MW7IC18100N MRF6S21050L MW7IC2040N/B MW7IC2240NB MRF6S21050L 2 ( Doherty ) MD7P19130H ( Doherty ) MRF7P20040H ( Doherty ) MD7IC21100N ( Doherty ) MD7IC2050N ( Doherty ) HV8 Discrete products HV8 IC products MRF5P21045N ( Doherty ) Doherty
10 Low Power Solutions MW6S004N MRF6S21050L ClassAB 13% Class AB MMG3014N MW7IC2240N ClassAB/ DPD MHV5IC1810N MRF5P21045N Discreted Doherty MMG3014N MW6S004N MRF7P20040H Doherty+DPD 25% Integrated Doherty MMG3014N MD7IC2050N Integrated Doherty+DPD 35% 10
11 High Power Solutions MW6S004N MRF7S2110H ClassAB/ DPD Class AB MMG3005N MW7IC18100N ClassAB/ DPD 20% MHV5IC1810N MRF6S21050L 2 Doherty+DPD MRF7S19080H 2 Discreted Doherty Doherty+DPD MD7P19130H Doherty+DPD >35% Integrated Doherty MMG3014N MD7IC21100N Integrated Doherty+DPD 11
12 Typical TD-SCDMA PA Performance Introduction
13 TD Low Power Solution MMG3014N MW6S004N MRF7P20040H Lineup: Features: - Lineup Gain ~ 35.5dB(two stage) Final output>42% lineup output>38% - P-1dB ~ 46.4dBm, P-3dB ~47.5dBm - ACPR: Adj -55dBc, Alt1-57dBc@ 40dBm output after FSL DPD 13
14 Power Sweep Output PAR & Efficiency vs Output Power Output PAR (db) Efficiency (%) PAR_2010MHz PAR_2017.5MHz PAR_2025MHz Eff_2010MHz Eff_2017.5MHz Eff_2025MHz Output Power (dbm) 14
15 DPD Correction_6C 2010MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout MHz NO DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout
16 TD Low Power Integrated Solution MMG3014N MD7IC2050N Lineup: Features: Lineup Gain ~ 45dB, final gain ~30dB Lineup output > 35% - P-1dB ~ 48.6dBm, P-3dB ~49.2dBm ACPR: Adj -50dBc, Alt1-53dBc@ 40dBm output after FSL DPD PCB Size: 5cm*7cm 16
17 Power Sweep Output PAR & Efficiency vs Output Power Output PAR (db) Output Power (dbm) 8 Output PAR (db) LineUp Efficiency (% ) PAR_2010MHz Output PAR 35 & Efficiency PAR_2017.5MHz vs Output Power PAR_2025MHz Eff_2010MHz Eff_2017.5MHz Eff_2025MHz Efficiency (% ) PAR_1880MHz PAR_1900MHz PAR_1920MHz Eff_1880MHz Eff_1900MHz Eff_1920MHz Output Power (dbm) 17
18 DPD Correction_9C 2010MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout
19 DPD Correction_9C 1880 MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout MHz NoDPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout
20 TD High Power Solution Lineup: MHV5IC1810N MRF7P19130H Features: - Final gain:15.5db - Efficiency > 37% at 44.5 dbm output power - P-3dB 52.3dBm - - ACPR: Adj -49.5dBc/ Alt1-52dBc at 44 dbm output after DPD Board Size: 5cm*7cm 20
21 Power Sweep 1880MHz Power sweep Vs output PAR and Efficiency MHz Power sweep Vs output PAR and Efficiency 11 Eff Average Pout(dBm) 20 Eff output PAR(dB) Eff (%) PAR (db) Output PAR(dB) Eff (%) PAR (db) Average Pout(dBm) 21
22 DPD Correction_6C Final Results: Iteration 4 NO DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT Final Results: Iteration 5 NO DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT Final Results: Iteration NO DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT DPD Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout EFFTOT
23 TD High Power Solution MHV5IC1810N MRF7S19080H Lineup: Features: Gain ~ 16dB Drain output > 38% - P-1dB ~ 52dBm, P-3dB ~53.1dBm - ACPR: Adj -51dBc, Alt dBc@44.5dBm output after FSL DPD 23
24 DPD Correction_9C Pout = MHz Pout (dbm) Adj-L (dbc) Adj-U (dbc) Alt-L (dbc) Alt-U (dbc) PAR(dB) Eff (%) No DPD DPD Pout = MHz Pout (dbm) Adj-L (dbc) Adj-U (dbc) Alt-L (dbc) Alt-U (dbc) PAR(dB) Eff (%) No DPD DPD
25 DPD Correction_9C Final Results: Iteration 5 Pout = MHz Pout (dbm) Adj-L (dbc) Adj-U (dbc) Alt-L (dbc) Alt-U (dbc) PAR(dB ) No DPD DPD Eff (%) Final Results: Iteration 5 Pout = MHz No DPD Pout (dbm) Adj-L (dbc) Adj-U (dbc) Alt-L (dbc) Alt-U (dbc) PAR(d B) DPD Eff (%) FSL DPD arithmetic: 3M5P 25
26 TD High Power Compact Solution Lineup: MMG3014N MD7IC21100N Features: Gain ~24dB (two stage) Drain 8dB OBO = 34% P-3dB ~ 52.2dBm DPD performance under FSL DPD: Adj 44.5dBm, 6C TDSCDMA signal Adj 44.5dBm, 9C TDSCDMA signal - 26
27 Power Sweep Vd1 = Vd2 = 28V, Carrier: 95mA / 460mA, Peaking: 95mA / 1.0V Gain and Drain Efficiency vs. Pout Output PAR vs. Pout PAR_2010MHz PAR_2017.5MHz PAR_2025MHz Gain (db) Gain_2010MHz Gain_2017.5MHz Gain_2025MHz Eff_2010MHz Drain Efficiency (%) PAR (db) Eff_2017.5MHz Eff_2025MHz Pout (dbm ) Pout (dbm) 27
28 6-carrier TDSCDMA DPD Performance -20 Final Results: Iteration 3-20 Final Results: Iteration 3-20 Final Results: Iteration Pout = 44.5dBm Vd1 = Vd2 = 28V, Carrier: 95mA / 460mA, Peaking: 95mA / 1.0V No DPD DPD Freq Pin (dbm) IRL (db) Pout (dbm) Gain (db) Adj-L (dbc) Adj-U (dbc) Alt-L (dbc) Alt-U (dbc) Eff (%)
29 FSL TD-LTE Solutions and Roadmaps
30 TD-LTE Solution Landscape < 25W 25W - 60 W > 60W MD7IC21100N/NB TO-270/2WB-14 MD7IC2755N/NB TO-270WB-14 MW7IC2750N/NB TO-270/2WB-14 MW7IC2725N/NB TO-270/2WB-16 HV8 Discrete products HV8 IC products Doherty
31 Typical TD-LTE Solution Performance Introduction
32 TD-LTE Low Power Solution Lineup: MMG3014N MD7IC2755N Features: Lineup 8dB OBO ~ 30% Gain~28.5dB, P-3dB ~ 48.5dBm, DPD performance under FSL DPD: ACPR corrected to -58dBc at 39dBm output power using WCDMA PAR 8.5dB signal 32
33 Power Sweep Output PAR & Efficiency vs Output power Output PAR (db) Output Power (dbm) PAE (%) PAR_2.4GHz PAR_2.35GHz PAR_2.3GHz PAE_2.4GHz PAE_2.35GHz PAE_2.3GHz 33
34 DPD Correction NoDPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout NoDPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout NoDPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout DPD Pin Pref Pout Alt2Lout Alt1Lout ACPLout ACPUout Alt1Uout Alt2Uout
35 Summary
36 Conclusion Freescale is devoted to building green solutions in the PA industry. With going green becoming more of a priority worldwide, high efficiency and more compact are also required in the communication field. Freescale provides full, highly-efficient, integrated Doherty solutions on TDSCDMA/TD-LTE. Why choose Freescale TD-SCDMA/TD-LTE products - Plenty of products makes plenty of options for customer; - Unique IC solution and plastic device make compact and low cost is possible; - Strong system engineering capability could provide plenty of Doherty solutions; - Very fast reaction for the market. Freescale not only provide good solutions to customers but also provide good local support to customers focus on TD-SCDMA/TD-LTE Choose Freescale choose success in TD-SCDMA/TD-LTE market. 36
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