Transcript
Product Specification Access Systems / Kari Mäki
CXFXXX
November 11, 2009
1(3)
CXF030, -042, -050, -055, -065 AND -085 DIPLEX FILTERS
The CXF0xx plug-in filters are designed to be used in the HFC products like CXExxx and AC-platform. The performance is optimised to fulfil the high transmission requirements of the modern two-way broadband system. Technical specifications Parameter
Specification
Note
Downstrean signal path Frequency ranges Return loss Insertion loss Group delay
47 / 54 / 70 / 70 / 85/108...862/1006MHz 1 23 dB 0.6 dB < 2 ns 2
Upstream signal path Frequency ranges Return loss Insertion loss Group delay
5...30 / 42 / 50 / 55 / 65 / 85 MHz 23 dB 0.6 dB see note
2
General Isolation Dimensions
see note 42 x 37 x 11 mm
3
CXF0xx_spec_v17.doc, created on November 11, 2009, printed on November 25, 2009
Product Specification Access Systems / Kari Mäki
November 11, 2009
CXFXXX 2(3)
Notes 1)
CXF065 and CXF085 support frequency range upto 1006 MHz.
2)
This value is valid at channel S2 or higher frequencies. Here is available typical group delay curves of each CXF0xx filters. 1:S21 Fwd Trans 2:Off
Delay
5 ns/
Ref
15 ns
C?
ns
1
60 55 50 45 40 35 30 25 20 1: Start 3.000 MHz
Stop 33.000 MHz
CXF030. Return channel. Scales are 5 ns and 3 MHz / div. 1:S21 Fwd Trans 2:Off
Delay
5 ns/
Ref
0 s
C?
ns 45 40 35 30 25 20 15 1 10 5 1: Start 45.000 MHz
Stop 65.000 MHz
CXF030. Forward channel. Scales are 5 ns and 2 MHz / div. 1:S21 Fwd Trans 2:Off
Delay
5 ns/
Ref
15 ns 1
ns 60 55 50 45 40 35 30 25 20 1: Start 23.000 MHz
Stop 53.000 MHz
CXF050. Return channel. Scales are 5 ns and 3 MHz / div 1:S21 Fwd Trans /M Delay 2:Off
5 ns/
Ref
0 s
C?
ns 45 40 35 30 25 20 15 1
10 5 1: Start 68.000 MHz
Stop 88.000 MHz
CXF0xx_spec_v17.doc, created on November 11, 2009, printed on November 25, 2009
Product Specification Access Systems / Kari Mäki
CXFXXX
November 11, 2009
3(3)
CXF050. Forward channel. Scales are 5 ns and 2 MHz / div. 1:S21 Fwd Trans 2:Off
Delay
5 ns/
Ref
15 ns 1
ns 60 55 50 45 40 35 30 25 20 1: Start 38.000 MHz
Stop 68.000 MHz
CXF065. Return channel. Scales are 5 ns and 3 MHz / div. 1:S21 Fwd Trans 2:Off
Delay
5 ns/
Ref
0 s
C?
ns 45 40 35 30 25 20 15 10 1 5 1: Start 83.000 MHz
Stop 103.000 MHz
CXF065. Forward channel. Scales are 5 ns and 2 MHz / div. 3)
5 MHz
200 MHz
Cross over band (2)
Return path (1)
Forward path (3)
Isolation / dB
The isolation is measured between return and forward path connectors. The common port is terminated. The curve is limited to be under the gate drawn in picture above. Values are following: 1 < - 38 dB, 2 < - 32 dB and 3 < - 38 dB.
Other There is also available a 0 dB jumper (CXF000) module for forward channel signal when diplex filter is not used.
CXF0xx_spec_v17.doc, created on November 11, 2009, printed on November 25, 2009
