Operation Manual LB2001
Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: +49 (6421) 305-0
Fax.: +49 (6421) 305-299
EMail: contact@sacher-laser.com
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: 1-714-670-7605
Fax: 1-714-670-7662
Email: sales@sacher-
laser.com
Page 28
Version:
Preliminary 2011-01-01
Two attenuators are placed after the filter sections.
The first attenuator (ATT1) is controlled by a 2 bit word.
Possible settings are
0 Attenuation = 0 dB
1 Attenuation = -6 dB
2 Attenuation = -9 dB
3 Attenuation = -20 dB
The second attenuator is controlled by a 6 bit number. The range is 0 to 63
The following graphs showed the relationship between attenuation 2 number and real
attenuation
The whole frequency response of the PT1 Post filter could be described by following
equation.
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