Planck 2013 results
Free Access

Table A.1

HFI electronics filter sequence; here s = .

Filter Description Parameters Function

0 Stray capacitance low pass filter τstray = RboloCstray
1 Low pass filter R1 = 1 kΩ
C1 = 100 nF
2 Sallen Key high pass filter R2 = 51 kΩ
C2 = 1 μ F
3 Sign reverse with gain ... h3 = −5.1
4 Single pole low pass filter with gain R4 = 10 kΩ
C4 = 10 nF
5 Single pole high pass filter coupled to a Sallen Key low pass filter R9 = 18.7 kΩ
R12 = 37.4 kΩ
C = 10.0 nF
R78 = 510 kΩ
C18 = 1.0 μF
   

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