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Switch Filter Components

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DC-30MHz Switch Filter Components

Technical Data

First:              composition

1.  Including Seven Low Pass Filters, Seven High Pass Filters, Four “Randomly choosing one Switch in eight switches”.

2.  Seven low pass filters frequency respectively is:

LP1.546MHzLP3.082MHzLP4.618MHzLP7.690MHzLP12.298MHzLP19.210MHzLP30.000MHz

3.  Seven high pass filters frequency respectively is:

HP0.758MHzHP1.526MHzHP3.062MHzHP4.598MHzHP7.670MHzHP12.278MHzHP19.190MHz

4.  Can form the band-pass filter for 28, respectively is:

0.758MHz1.546MHz0.758MHz3.082MHz0.758MHz4.618MHz0.758MHz7.690MHz0.758MHz12.298MHz0.758MHz19.210MHz0.758MHz30.000MHz

1.526MHz3.082MHz1.526MHz4.618MHz1.526MHz7.690MHz1.526MHz12.298MHz1.526MHz19.210MHz1.526MHz30.000Hz

3.062MHz4.618MHz3.062MHz7.690MHz3.062MHz12.298MHz3.062MHz19.210MHz3.062MHz30.000MHz

4.598MHz7.690MHz4.598MHz12.298MHz4.598MHz19.210MHz4.598MHz30.000MHz

7.670MHz12.298MHz7.670MHz19.210MHz7.670MHz30.000MHz

12.278MHz19.210MHz12.278MHz30.000MHz

19.190MHz30.000MHz

Second:         Principle block diagram (See attached figure)

 

Third:            Main technical indexes

1. A single switch loss: 1dB

2. Four switches total loss: 4dB

3. Low pass filter loss: 1.5dB

4. High pass filter loss: 1.5dB

5. Switch filter group total loss: 7dB

6. Low pass filter on the adjacent frequency suppression: 35dB

7. High pass filter on the adjacent frequency suppression: 35dB

8. Input and Output VSWR: 1.8

Fourth:          PIN Definition

1. Input:    Logo: XS1;   Socket TypeSMA-KFD

2. Output:   Logo: XS2;   Socket TypeSMA-KFD

3. Low frequency Socket:   Logo: XS3;   Socket TypeDE-9P ( Needle )

PIN Definition See the schedule 1:

Schedule 1      Low frequency Socket (DE-9P)

SN

Designation

Explain

Note

1

A1

Low pass filter switch control signal

 

2

B1

Low pass filter switch control signal

 

3

C1

Low pass filter switch control signal

 

4

A2

High pass filter switch control signal

 

5

B2

High pass filter switch control signal

 

6

C2

High pass filter switch control signal

 

7

GND

Control Grounding

 

8

+5V

Power Input

 

9

GND

Power Grounding

 

Switch selection signal control See the schedule 2:

Schedule 1     Switch selection signal control tabulation

Switch control signal

Choose the low pass filter

Switch control signal

Choose the High pass filter

A1

B1

C1

A2

B2

C2

0

0

0

Ended at

0

0

0

Ended at

0

0

1

LP1.546MHz

0

0

1

HP0.758MHz

0

1

0

LP3.082MHz

0

1

0

HP1.526MHz

0

1

1

LP4.618MHz

0

1

1

HP3.062MHz

1

0

0

LP7.690MHz

1

0

0

HP4.598MHz

1

0

1

LP12.298MHz

1

0

1

HP7.670MHz

1

1

0

LP19.210MHz

1

1

0

HP12.278MHz

1

1

1

LP30.000MHz

1

1

1

HP19.190MHz

 

Fifth: Size (155*82*29mm)

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