Model: 8SFB200-2500-CD-SFF-DI-DA-HS

Model 8SFB200-2500-CD-SFF-DI-DA-HS is a a eight channel switch filter bank. This model has dual inputs and eight filter channels that cover the frequency range of 200MHz to 2.5GHz.  Both RF inputs feature a step attenuator for input level adjustments.  The attenuators have a total range of 30dB in 10dB steps.  This model includes an integral TTL driver and offers fast switching speeds of less than 1usec.


Quick Links: (click the links below for additional information)

Mechanical Outline

Test Data

Functional Block Diagram

 

Specifications:

Number of Filter Channels 8 Channels
Channel 1 Specifications:  
Channel 1Passband 200 to 300MHz
Channel 1 Rejection

-60dBc min. @ 400 to 3000MHz

Channel 2 Specifications:  
Channel 2 Passband 290 to 400MHz
Channel 2 Rejection

-60dBc min. @ 500 to 3000MHz

Channel 3 Specifications:  
Channel 3 Passband 390 to 600MHz
Channel 3 Rejection

-60dBc min. @ 800 to 3000MHz

Channel 4 Specifications:  
Channel 4 Passband 590 to 800MHz
Channel 4 Rejection

-60dBc min. @ 1000 to 3000MHz

Channel 5 Specifications:  
Channel 5 Passband 790 to 1000MHz
Channel 5 Rejection

-60dBc min. @ 1400 to 3000MHz

Channel 6 Specifications:  
Channel 6 Passband 1000 to 1500MHz
Channel 6 Rejection

-60dBc min. @ 1900 to 4000MHz

Channel 7 Specifications:  
Channel 7 Passband 1490 to 2000MHz
Channel 7 Rejection

-60dBc min. @ 2500 to 5000MHz

Channel 8 Specifications:  
Channel 8Passband 1990 to 2500MHz
Channel 8 Rejection

-60dBc min. @ 3000 to 6000MHz

Common Specifications:  
Insertion Loss 8.5dB max.
Isolation: 70dB min.
VSWR 2.0:1 max.
Switching Speed 1usec max.
Control

12 Line TTL

RF Power Rating +27dBm CW max.
Power Supply

+5VDC max.

-5VDC max.

Connectors SMA(F)
Size 6.3"L x 3.93"W x 0.88"H
Additional Features:  
Dual Input Channels Featuring Input Attenuator for level adjustment. 0 to 30dB Attenuation (10dB per Step)

 

Environmental Ratings:

Temperature:  -40ºC to +85 ºC Operating
 -40 ºC to +100 ºC Non-Operating
 Humidity:  MIL-STD-202F, Method 103B Cond. B
 Shock:  MIL-STD-202F, Method 213B Cond. B
 Vibration:  MIL-STD-202F, Method 204D Cond. B
 Altitude:  MIL-STD-202F, Method 105C Cond. B
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A

 

TTL Filter Band Control Logic:

Frequency Band T1 T2 T3 T4 T5 T6 T7 T8
200 to 300MHz 0 1 1 1 1 1 1 1
290 to 400MHz 1 0 1 1 1 1 1 1
390 to 600MHz 1 1 0 1 1 1 1 1
590 to 800MHz 1 1 1 0 1 1 1 1
790 to 1000MHz 1 1 1 1 0 1 1 1
1000 to 1500MHz 1 1 1 1 1 0 1 1
1490 to 2000MHz 1 1 1 1 1 1 0 1
1990 to 2500MHz 1 1 1 1 1 1 1 0

TTL Control Logic - RF Input 1 - Attenuator Control:

Band 1 Attenuation T9 T10
Insertion Loss 0 0
-10dB 0 1
-20dB 1 0
-30dB 1 1

TTL Control Logic - RF Input 2 - Attenuator Control:

Band 2 Attenuation T11 T12
Insertion Loss 0 0
-10dB 0 1
-20dB 1 0
-30dB 1 1

Functional Block Diagram: