Filter Configurations RHF 1/8/97 ===================== The following tables specify the *necessary* parameter values required to configure the DAS to a particular filter configuration. Where filter choice automatically constrains output and other options, these are specified too. A list of parameters likely to be relevant to each filter type is included with each parameter set. 64MHz/Unfiltered Sampler Output: Group S0 ***************************************** S0 Group -------- Filter <70># <76># '''''' '''' '''' S0*64 2 5 # Applies only if S0 output is required at this port. Also check <30>, <31> & <75>. Band Splitter Filters: Groups B1, B1S, B2, B4 & B6 ************************************************** NB. For all filters leave <9> = 0 <14> = 1 <19> = 0 <21> = 0 <23> = 0 <26> = 0 <28> = 0 B1 Group -------- Filter <3> <5> <6> <7> <8> <15> <17> <70># <76># '''''' ''' ''' ''' ''' ''' ''' '''' '''' '''' B1*32 1 31 31 1 1 0 0 1 4 B1*16 1 31 31 2 2 0 0 0 0,1 B1*8 1 31 31 3 3 0 0 0 0,1 B1*4 1 31 31 4 4 0 0 0 0,1 B1*2 1 31 31 5 5 0 0 0 0,1 B1*1 1 31 31 6 6 0 0 0 0,1 # Applies only if B1 output is required at this port. Also check <11>, <12>, <31>, <71>..<74>, <75> & <79>. N.b. <71>..<74> only affect data when <70> = 0. <79> only applies when <76> = 0..3. B1S Group -------- Filter <3> <5> <6> <7> <8> <15> <17> <70># <76># '''''' ''' ''' ''' ''' ''' ''' '''' '''' '''' B1*32S 1 31 31 1 1 0 0 1 4 B1*16S 1 31 31 7 7 0 0 0 0,1 B1*8S 1 31 31 8 8 0 0 0 0,1 B1*4S 1 31 31 9 9 0 0 0 0,1 B1*2S 1 31 31 10 10 0 0 0 0,1 B1*1S 1 31 31 11 11 0 0 0 0,1 # Applies only if B1S output is required at this port. Also check <11>, <12>, <31>, <71>..<74>, <75> & <79>. N.b. <71>..<74> only affect data when <70> = 0. <79> only applies when <76> = 0..3. . . . . B2 Group -------- Filter <3> <5> <6> <7> <8> <15> <17> <70># <76># '''''' ''' ''' ''' ''' ''' ''' '''' '''' '''' B2*16 1 31 31 12 22 0,1 0,1 0 0,1 B2*8 1 31 31 13 23 0,1 0,1 0 0,1 B2*4 1 31 31 14 24 0,1 0,1 0 0,1 B2*2 1 31 31 15 25 0,1 0,1 0 0,1 B2*1 1 31 31 16 26 0,1 0,1 0 0,1 # Applies only if B2 output is required at this port. Also check <11>, <12>, <16>, <18>, <31>, <71>..<74>, <75> & <79>. B4 Group -------- Filter <3> <5> <6> <7> <8> <15> <17> <70># <76># '''''' ''' ''' ''' ''' ''' ''' '''' '''' '''' B4*8 1 31 31 17 27 0,1 0,1 0 0,1 # Applies only if B4 output is required at this port. Also check <11>, <12>, <16>, <18>, <31>, <71>..<74>, <75> & <79>. B6 Group -------- Filter <3> <5> <6> <7> <8> <15> <17> <70># <76># '''''' ''' ''' ''' ''' ''' ''' '''' '''' '''' B6*8 0 32 32 17 27 0,1 0,1 0 0,1 # Applies only if B6 output is required at this port. Also check <11>, <12>, <16>, <18>, <31>, <71>..<74>, <75> & <79>. Fine Tuner Filters: Groups F0, F1, F1S & F2 ******************************************* The input to the Fine Tuner is one of the Band Splitter's filtered outputs. The availability of FT filters and their configuration parameters therefore depend on the bandwidth ("B") of that BS filter. Proceed by setting Common Features, then find the desired FT filter in the appropriate B column in the relevant Group, and set the adjacent parameter values. NB. For all filters leave <48> = 0 <51> = 0 <59> = 0 <61> = 0 <63> = 0 Common Features --------------- Use 'B' in the Group tables below. Set <40> (decimation) as tabulated <41> (LO frequency) as tabulated Source (Band Splitter Filter) B(MHz) <40> <41> ''''''''''''''''''''''''''''' '''''' '''' '''' B1*16, B1*16S, B2*16.X, B2*16.Y 16 1 0-16.0E6 B1*8, B1*8S, B2*8.X, B2*8.Y 8 2 0-8.0E6 B4*8.X B4*8.Y B6*8.X B6*8.Y 8 2 0-8.0E6 B1*4, B1*4S, B2*4.X, B2*4.Y 4 4 0-4.0E6 B1*2, B1*2S, B2*2.X, B2*2.Y 2 8 0-2.0E6 B1*1, B1*1S, B2*1.X, B2*1.Y 1 16 0-1.0E6 Also check <42>..<47>. Usually <43> = 0 & <45> = 1. If non-zero, <42> has the same range as <41>. F0 Group -------- Set <41> = 0 <43> = 0 <46> = 0 <47> = 0 B=16 B=8 B=4 B=2 B=1 <49> <50> <55> <57> ''''' '''' '''' '''' '''' '''' '''' '''' '''' F0*16 F0*8 F0*4 F0*2 F0*1 21 21 0,1 0,1 Also check <31>, <53>, <54>..<56>, <58>, <68>, <70>..<74>, <75>..<79>. F1 Group -------- B=16 B=8 B=4 B=2 B=1 <49> <50> <55> <57> ''''' '''' '''' '''' '''' '''' '''' '''' '''' F1*16 F1*8 F1*4 F1*2 F1*1 2 2 0 0 F1*8 F1*4 F1*2 F1*1 F1*0.5 3 3 0 0 F1*4 F1*2 F1*1 F1*0.5 F1*0.25 4 4 0 0 F1*2 F1*1 F1*0.5 F1*0.25 F1*0.125 5 5 0 0 F1*1 F1*0.5 F1*0.25 F1*0.125 F1*0.0625 6 6 0 0 Also check <31>, <53>, <54>, <68>, <70>..<74>, <75>..<79>. F1S Group -------- B=16 B=8 B=4 B=2 B=1 <49> <50> <55> <57> ''''' '''' '''' '''' '''' '''' '''' '''' '''' F1*16S F1*8S F1*4S F1*2S F1*1S 7 7 0 0 F1*8S F1*4S F1*2S F1*1S F1*0.5S 8 8 0 0 F1*4S F1*2S F1*1S F1*0.5S F1*0.25S 9 9 0 0 F1*2S F1*1S F1*0.5S F1*0.25S F1*0.125S 10 10 0 0 F1*1S F1*0.5S F1*0.25S F1*0.125S F1*0.0625S 11 11 0 0 Also check <31>, <53>, <54>, <68>, <70>..<74>, <75>..<79>. F2 Group -------- B=16 B=8 B=4 B=2 B=1 <49> <50> <55> <57> ''''' '''' '''' '''' '''' '''' '''' '''' '''' F2*8 F2*4 F2*2 F2*1 F2*0.5 13 23 0,1 0,1 F2*4 F2*2 F2*1 F2*0.5 F2*0.25 14 24 0,1 0,1 F2*2 F2*1 F2*0.5 F2*0.25 F2*0.125 15 25 0,1 0,1 F2*1 F2*0.5 F2*0.25 F2*0.125 F2*0.0625 16 26 0,1 0,1 Also check <31>, <53>, <54>, <56>, <58>, <68>, <70>..<74>, <75>..<79>. __________________________________________