NBSG111BAEVB

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5

Setup Test Configurations For Differential Operation

Small Signal Setup

Step 2:

Input Setup

2a: Calibrate VNA from 1 0 GHz to 12 GHz

Step 2:

2a: Calibrate VNA from 1.0 GHz to 12 GHz.

2b: Set input level to –35 dBm at the output of the 180

° Hybrid coupler (input of the DUT).

St

3

Output Setup

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

Large Signal Setup

Step 2:

Input Setup

2a: Calibrate VNA from 1 0 GHz to 12 GHz

Step 2:

2a: Calibrate VNA from 1.0 GHz to 12 GHz.

2b: Set input levels to −2.0 dBm (500 mV) at the input of DUT.

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

CLK0

CLK0

Q0

Q9

Q9

Q0

GND

GND

SEL

EN

EN

SEL

Vector Network Analyzer

Figure 4. NBSG111 Board Setup – Frequency Domain (Differential Mode)

50

W

180

5 Hybrid

Coupler

GND

GND

50

W

Bias T

50

W

GND

PORT 2

PORT 1

GND

50

W

GND

50

W

Float

Float

* Q0 − Q9 Outputs

NOTE:

All differential cable pairs

must be matched.

Due to simplifcation of the block diagram CLK1/CLK1 and Q1 − Q8 connections are not shown.