Mar 9, 2011 #1 A Aalda Newbie level 4 Joined Dec 9, 2009 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,325 Hi, I'm designing COFDM power amplifier with output power 1W and with MER 35 dB, which PA transistor should I use? Is it usable LDMOS MW6S004NT1 or should I use MW6S010N or anything else? Thank you
Hi, I'm designing COFDM power amplifier with output power 1W and with MER 35 dB, which PA transistor should I use? Is it usable LDMOS MW6S004NT1 or should I use MW6S010N or anything else? Thank you
Mar 9, 2011 #2 D DDavid Full Member level 5 Joined Apr 6, 2006 Messages 305 Helped 49 Reputation 98 Reaction score 27 Trophy points 1,308 Activity points 2,986 If u want OFDM u need at least backoff around 10dB, so with this 4w=36dBm i dont think u can use this please supply more data which freq bw, etc
If u want OFDM u need at least backoff around 10dB, so with this 4w=36dBm i dont think u can use this please supply more data which freq bw, etc
Mar 9, 2011 #3 A Aalda Newbie level 4 Joined Dec 9, 2009 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,325 Frequency is from 480 MHz to 860 MHz with BW 8MHz. It is amplifier for DVB-T signal.
Mar 9, 2011 #4 D DDavid Full Member level 5 Joined Apr 6, 2006 Messages 305 Helped 49 Reputation 98 Reaction score 27 Trophy points 1,308 Activity points 2,986 I am used for the same application for the BW and get 42dB MER with BLF871
Mar 9, 2011 #5 A Aalda Newbie level 4 Joined Dec 9, 2009 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,325 But BLF871 is 100 W transistor and it has 24 W with DVB-T modulation so I think that is overdesigned , 1 W is enough for me. And what was power consumption ? Last edited: Mar 9, 2011
But BLF871 is 100 W transistor and it has 24 W with DVB-T modulation so I think that is overdesigned , 1 W is enough for me. And what was power consumption ?
Mar 10, 2011 #6 D DDavid Full Member level 5 Joined Apr 6, 2006 Messages 305 Helped 49 Reputation 98 Reaction score 27 Trophy points 1,308 Activity points 2,986 Yes u right I need more than 1w u can put AP603 in balanced configuration so u will be able to get 36dB MER at 30dBm
Yes u right I need more than 1w u can put AP603 in balanced configuration so u will be able to get 36dB MER at 30dBm