{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Calculator","Definitions","Useful Relationships"],"not_rendered":{"images":4,"macros":1,"external_links":1,"defined_names":4},"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Calculator","index":0,"n_rows":33,"n_cols":13,"rows_kept":33,"flags":["formulas_cached_only"]}
["dB Calculator, Version 1"]
["by Bruce Carter, Texas Instruments Applications"]
[]
[null,null,"Voltage",{"$nulls":3},"Definitions"]
[{"$nulls":6},"see tab below"]
["Input ",null,1,"V"]
["Reference ",null,1,"V"]
["Gain",null,0,"dB"]
[]
[null,null,"Power",{"$nulls":3},"Useful Relationships"]
[{"$nulls":6},"see tab below"]
["Input ",null,1,"W"]
["Reference ",null,1,"W"]
["Gain",null,0,"dB"]
[]
[null,null,"Voltage Conversions"]
[]
["Vrms to:",null,1,"Vrms","=",0,"dBV","=",60,"dBmV"]
["dBV to:",null,0,"dBV","=",1,"Vrms","=",1000,"mVrms","=",1000000,"uVrms"]
[]
[null,null,"Power Conversions"]
[]
["Watts to:",null,1,"Watts","=",30,"dBm","=",0,"dBW","=",-30,"dBK"]
["dBm to:",null,0,"dBm","=",0.001,"Watts","=",1,"mW","=",1000,"uVrms"]
[]
[null,null,"Power and Voltage Conversions"]
[]
["Termination",null,50,"Ohms"]
[]
["Vrms to:",null,1,"Vrms","=",13.010299956639813,"dBm","=",-16.989700043360187,"dBW","=",-46.98970004336019,"dBK"]
["dBV to:",null,0,"dBV","=",13.010299956639813,"dBm","=",-16.989700043360187,"dBW","=",-46.98970004336019,"dBK"]
["dBm to:",null,13.0103,"dBm","=",4.3360189819508516e-08,"dBV","=",4.336018981950852e-05,"dBmV"]
[{"$nulls":4},"=",1.0000000049920263,"Vrms","=",1000.0000049920263,"mVrms","=",1000000.0049920264,"uVrms"]

{"sheet":"Definitions","index":1,"n_rows":31,"n_cols":3,"rows_kept":31,"flags":["formulas_cached_only"]}
["dB Definitions"]
[]
["Unit","Usage","Definition"]
[]
["Bel","power","logarithm (10) of the ratio of two powers"]
[]
[]
[]
[]
[]
["dB",null,"decibel = 1/10 Bel"]
[]
[]
[]
[]
["dBA",null,"The dB SPL figure with a weighting curve applied to it "]
["dBc",null,"dB referenced to a carrier (voltage or power) "]
["dBf","power","dB referenced to a femtowatt"]
["dBi","power","dB change of an antenna system relative to an isotropic radiator"]
["dBK","power","dB referenced to a kilowatt"]
["dBm","power","dB referenced to a milliwatt"]
["dBmV","voltage","dB referenced to 1 mVrms across 75 ohms"]
["(dBS)",null,"(direct broadcast satellite)"]
["dB SPL","power","dB referenced to 20 uPascals"]
["dBu","voltage","dB refenced to 0.775 Vrms across 600 ohms"]
[null,null,"Sometimes dB referenced to 1 uVrms,"]
[null,null,"hence the alternate terminology below to avoid confusion"]
["dBv","voltage","Alternate for terminology for dBu (referenced to 0.775 Vrms)"]
["dBV","voltage","dB referenced to 1 Vrms"]
["dBW","power","dB referenced to 1 Watt"]
["dBx",null,"dB above reference coupling (crosstalk)"]

{"sheet":"Useful Relationships","index":2,"n_rows":20,"n_cols":7,"rows_kept":20,"flags":["formulas_cached_only"]}
["Useful Relationships"]
[]
["Voltage","dBV",null,null,"Power","dBW","dBm"]
[10000,80,null,null,100000,50,80]
[1000,60,null,null,10000,40,70]
[100,40,null,null,1000,30,60]
[10,20,null,null,100,20,50]
[3.1622776601683795,10,null,null,10,10,40]
[2,6.020599913279624,null,null,2,3.010299956639812,33.01029995663981]
[1.9952623149688797,6,null,null,3.9810717055349727,6,36]
[1.4125375446227544,3,null,null,1.9952623149688797,3,33]
[1,0,null,null,1,0,30]
[0.7079457843841379,-3,null,null,0.5011872336272722,-3,27]
[0.5011872336272722,-6,null,null,0.251188643150958,-6,24]
[0.5,-6.020599913279624,null,null,0.5,-3.010299956639812,26.989700043360187]
[0.31622776601683794,-10,null,null,0.1,-10,20]
[0.1,-20,null,null,0.01,-20,10]
[0.01,-40,null,null,0.001,-30,0]
[0.001,-60,null,null,0.0001,-40,-10]
[0.0001,-80,null,null,1e-05,-50,-20]