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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ## Polyphase Filter based Clock Sync
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Polyphase Clock Sync</name>
   9         <key>gr_pfb_clock_sync_ccf</key>
  10         <import>from gnuradio import gr</import>
  11         <make>gr.pfb_clock_sync_ccf($sps, $alpha, $taps, $filter_size, $init_phase)</make>
  12         <callback>set_taps($taps)</callback>
  13         <callback>set_alpha($alpha)</callback>
  14         <callback>set_beta($beta)</callback>
  15
  16         <param>
  17                 <name>Samples/Symbol</name>
  18                 <key>sps</key>
  19                 <type>real</type>
  20         </param>
  21         <param>
  22                 <name>Alpha</name>
  23                 <key>alpha</key>
  24                 <type>real</type>
  25         </param>
  26         <param>
  27                 <name>Beta</name>
  28                 <key>beta</key>
  29                 <type>real</type>
  30         </param>
  31         <param>
  32                 <name>Taps</name>
  33                 <key>taps</key>
  34                 <type>real_vector</type>
  35         </param>
  36         <param>
  37                 <name>Filter Size</name>
  38                 <key>filter_size</key>
  39                 <type>int</type>
  40         </param>
  41         <param>
  42                 <name>Initial Phase</name>
  43                 <key>init_phase</key>
  44                 <type>real</type>
  45         </param>
  46         <sink>
  47                 <name>in</name>
  48                 <type>complex</type>
  49         </sink>
  50         <source>
  51                 <name>out</name>
  52                 <type>complex</type>
  53         </source>
  54         <source>
  55                 <name>err</name>
  56                 <type>float</type>
  57                 <optional>1</optional>
  58         </source>
  59         <source>
  60                 <name>rate</name>
  61                 <type>float</type>
  62                 <optional>1</optional>
  63         </source>
  64         <source>
  65                 <name>phase</name>
  66                 <type>float</type>
  67                 <optional>1</optional>
  68         </source>
  69 </block>