DF-B 1.2 GHz Diplex Filter

Query


SQDF-B 1.2GHz Diplex Filter is a complete diplex filter with 75 Ohm at all ports. This filter isolates the forward and reverse bands so that the two signals can share the same coax band width. The reverse path frequencies pass through the low-pass filter which has a cutoff frequency of 65/85/204 MHz, and the forward path frequencies pass through the high-pass filter which has a cutoff frequency of 87/105/258 MHz. The high-pass filter works up to 1.2 GHz. Each of these filters, together with additional filtering provided on the amplifier motherboards, has enough isolation to prevent the amplifier from oscillating. It also provides enough isolation so that there is no interference between the forward and reverse path.

These accessories can be used for nodes, amplifiers, line extenders, etc.


Item

Units

65 / 87

85 / 105

204 / 258

FrequencyRange

MHz

5 - 65 / 87 - 1218

5 - 85 / 105 - 1218

5 - 204 / 258 - 1218

Insertion Loss

dB

0.2 (Min)

@5-65M

@87-1218M

0.2 (Min)

@5-85M

@105-1218M

0.2 (Min)

@5-204M

@258-1218M

1.5 (Max)

1.5 (Max)

1.5 (Max)

Isolation

dB

40

@5-65M

38

@5-85M

30

@5-130M

35

@65-87M

26

@85-105M

26

@130-258M

38

@87-1002M

43

@105-1002M

38

@258-1002M

30

@1002-1218M

40

@1002-1218M

35

@1002-1218M

Return Loss

dB

20

@5-65M

@87-1002M

20

@5-85M

@105-1002M

20

@5-204M

@258-1002M

17

@1002-1218M

17

@1002-1218M

17

@1002-1218M

Impedance

Ω

75

 

Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 68°F (20°C). 


Description

Part Number

 SQDF-B 1.2 GHz 65/87 SMD Diplex Filter

99090100

 SQDF-B 1.2 GHz 65/87 (M) SMD Diplex Filter

99090200

 SQDF-B 1.2 GHz 85/105 SMD Diplex Filter

99090101

 SQDF-B 1.2 GHz 85/105 (M) SMD Diplex Filter

99090201

 SQDF-B 1.2 GHz 204/258 SMD Diplex Filter

99090102

 SQDF-B 1.2 GHz 204/258 (M) SMD Diplex Filter

99090202


About Us

Shanghai Qianjin Electronic equipment Co., LTD was founded in 1991. It is a scale and specialized CATV equipment manufacturer with research, development and production. Our company has been identified as high-tech enterprises, strict compliance with international standards and pass GB / T 9001 quality management system certification.

Our good reputation and perfect product service system has won praise from customers. Products are sold to Europe, America, Asia and other countries and regions, as OEM / ODM supplier.



Contact

   Address: 4/F,Budliding No.2,401 Caobao Road Shanghai China

   Phone: 021-54973555

   Email: sales@sq-cabledevice.com