Atec Anritsu-MS4640B - Manual (Page 40)

40 PN: 11410-00611 Rev. A MS4640B Series TDS
Block Diagram VectorStar™ MS4640B Series
Block Diagram
A. With Option 031 Dual Source Architecture, second low-band and high-band sources are added and the two switches are removed. One set of sources
is dedicated to each of the VNA test port paths.
B. With Option 035 IF Digitizer, high speed digitizers are added to the receiver paths (a
1
, b
1
, a
2
, b
2
) for fast IF detection.
MS4640B Series VNA Block Diagram – Fully Loaded Configuration
> 2.5 GHz
High Band
< 2.5 GHz
Low Band
Port 1 Port 2 Bias 1
a
1
a
1
a
2
a
2
b
1
b
1
b
2
b
2
Bias 2
A
A
B
Optional