Specifies requirements for bandpass filters with respect to their immunity to power- and radio-frequency electromagnetic fields and to electrostatic discharge, and the permitted radio-frequency electromagnetic emissions, together with test procedures to demonstrate conformance to the specifications of this standard.Specifies performance requirements for filters of classes 0, 1 and 2 and methods of test to ensure compliance.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Committees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword Foreword to amendment A1 Contents <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 1.1 This International Standard provides performance requirements and methods for testing the per… 1.2 Performance requirements are provided for three filter classes designated class\ufffd0, class\ufffd1, a… 1.3 Bandpass filters complying with the performance requirements of this standard may be part of … 1.4 Instruments complying with the requirements of this standard are capable of providing frequen… 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 3 Definitions 3.1 bandpass filter 3.2 octave ratio 3.3 bandwidth designator 3.4 reference frequency 3.5 exact midband frequency <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.6 nominal midband frequencies 3.7 bandedge frequencies 3.8 normalized frequency 3.9 filter bandwidth 3.10 octave-band filter 3.11 fractional-octave-band filter 3.12 filter attenuation <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.13 reference attenuation 3.14 relative attenuation 3.15 normalized effective bandwidth 3.16 normalized reference bandwidth 3.17 filter integrated response 3.18 reference level range <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3.19 reference input signal level 3.20 level difference 3.21 reference level difference 3.22 level linearity error 3.23 linear operating range 3.24 level range control 3.25 measurement range 3.26 analogue filter 3.27 sampled-data filter 3.28 digital filter 3.29 real-time operation 3.30 aliased frequency components <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3.31 anti-alias filter 3.32 reference orientation (of a bandpass filter) 3.33 group X bandpass filter 3.34 group Y bandpass filter 3.35 group Z bandpass filter 4 Performance requirements 4.1 General 4.2 Nominal midband frequencies 4.3 Reference attenuation 4.4 Relative attenuation <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 1 – Limits on relative attenuation for octave-band filters <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Figure 1 – Illustration of minimum and maximum limits on relative attenuation for\ufffdclass\ufffd1\ufffdoctave-band filters 4.5 Filter integrated response <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.6 Linear operating range 4.7 Real-time operation 4.8 Anti-alias filters 4.9 Summation of output signals 4.10 Flat frequency response 4.11 Maximum input signal 4.12 Terminating impedances 4.13 Reference environmental conditions <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.14 Sensitivity to various environments 4.15 Power supply check 5 Test methods 5.1 General 5.2 Test instruments <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.3 Relative attenuation 5.4 Filter integrated response <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.5 Linear operating range 5.6 Real-time operation <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.7 Anti-alias filters 5.8 Summation of output signals <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5.9 Flat frequency response 5.10 Sensitivity to variations of the environment 5.11 Clause deleted 5.12 Clause deleted 6 Instrument marking 7 Instruction manual <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 8 Electromagnetic and electrostatic compatibility requirements and test procedures 8.1 General <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 8.2 Emission limits 8.3 Electrostatic discharges 8.4 Immunity to power- and radio-frequency fields and conducted disturbances <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 8.5 Test procedures <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex A (informative) Midband frequencies A.1 A.2 A.3 A.4 A.5 <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Table A.1 – Midband frequencies for octave-band and one-third-octave-band filters\ufffdin\ufffdthe\ufffdaudio range <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Annex B (informative) Normalized frequencies at breakpoints of limits on minimum and maximum relative att… B.1 B.2 B.3 B.4 B.5 B.6 <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Table B.1 – Limits on relative attenuation for one-third-octave-band filters Annex C (informative) Recommendations for verification of the electrical performance characteristics of b… C.1 <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex D (informative) Radio-frequency emission limits Table D.1 – Limits for radiated disturbance of class B information technology equipment (ITE) at a measuring … Table D.2 – Limits for conducted disturbance at the mains ports of class B information technology equipment (… <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European … <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Electroacoustics. Octave-band and fractional-octave-band filters<\/b><\/p>\n |