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syncmaster
Joined: 27 May 2001
Posts: 53
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 28 May 2003 14:18 PA with power down mode for 340MHz |
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| I meet problem in an nonstandard wlan project, anyone could give me some suggestions on "PA with power down mode for 340MHz"
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BigBoss
Joined: 17 Nov 2001
Posts: 931
Helped: 47
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| 28 May 2003 14:42 |
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Does it mean that considering an amplifier that works @ 340MHz with Power Down Feature ?
Regards ,
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syncmaster
Joined: 27 May 2001
Posts: 53
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| 28 May 2003 14:52 PA |
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yes. It is used in a TDD mode, so a power down func is required especially when the output noise floor is not very low. I initially found a chip from RFMD, but its on/off time is too long(>100us).
Thanks for considering my request, and looking for further suggestions.
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flatulent
Joined: 19 Jul 2002
Posts: 4862
Helped: 292
Location: Middle Earth
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| 28 May 2003 14:56 system change |
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| Do you have any control on the system design? Making the packets longer and less frequent will allow the >100us amplifier to work.
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syncmaster
Joined: 27 May 2001
Posts: 53
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| 29 May 2003 7:25 RF PA |
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I tried to connect with the Base band designer and got some compromize of switching time. Also I think I should change the capcitor connected to the switch to reduce the switching time.
Tnank you all.
Regards,
syncmaster
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