AnsweredAssumed Answered

Enabling slow AGC on AD9361

Question asked by stojo on Mar 14, 2017
Latest reply on Mar 15, 2017 by sripad

In order to enable slow AGC, I've set

0x0FA -> 0xE2  // enable

0x101 -> 0x11 // inner high threshold -11dBFS
0x120 -> 0x15 // inner low threshold -15dBFS
0x123 -> 0x11 // Step sizes (inner) 1dB
0x129 -> 0x66 // outer high/low thresholds -5dBFS/-21dBFS
0x12A -> 0x22 // Step sizes (outer) 2dB


I've tried many combinations of these settings, but I cannot seem to get AGC to lock in...output power varies linearly as I sweep input power.  Is there register I'm forgetting to set? Is there an example driver I can look at?


According to the register map, this should work! ( )