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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_gain($gain)</callback>
  14
  15         <param>
  16                 <name>Samples/Symbol</name>
  17                 <key>sps</key>
  18                 <type>real</type>
  19         </param>
  20         <param>
  21                 <name>Alpha</name>
  22                 <key>alpha</key>
  23                 <type>real</type>
  24         </param>
  25         <param>
  26                 <name>Beta</name>
  27                 <key>beta</key>
  28                 <type>real</type>
  29         </param>
  30         <param>
  31                 <name>Taps</name>
  32                 <key>taps</key>
  33                 <type>real_vector</type>
  34         </param>
  35         <param>
  36                 <name>Filter Size</name>
  37                 <key>filter_size</key>
  38                 <type>int</type>
  39         </param>
  40         <param>
  41                 <name>Initial Phase</name>
  42                 <key>init_phase</key>
  43                 <type>real</type>
  44         </param>
  45         <sink>
  46                 <name>in</name>
  47                 <type>complex</type>
  48         </sink>
  49         <source>
  50                 <name>out</name>
  51                 <type>complex</type>
  52         </source>
  53         <source>
  54                 <name>err</name>
  55                 <type>float</type>
  56                 <optional>1</optional>
  57         </source>
  58         <source>
  59                 <name>rate</name>
  60                 <type>float</type>
  61                 <optional>1</optional>
  62         </source>
  63         <source>
  64                 <name>phase</name>
  65                 <type>float</type>
  66                 <optional>1</optional>
  67         </source>
  68 </block>