N4850A 데이터 시트보기 (PDF) - HP => Agilent Technologies

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N4850A

N4850A DigRF v3 Acquisition Probe N4860A DigRF v3 Stimulus Probe

HP => Agilent Technologies 

BB-IC/RF-IC Integration

Figure 5 shows the equipment

required to integrate the RF-IC

with the BB-IC. A signal

generator and spectrum analyzer

provide stimulus/response

capabilities in the RF domain.

Traffic on the DigRF v3 link

between the RF-IC and BB-IC

is monitored by the N4850A

acquisition probe. Control

packets are viewed in the logic

analyzer’s packet viewer, and IQ

data packets are analyzed using

the Agilent 89601A vector signal

analysis package. The logic

analyzer monitors the BB-IC

visibility port to help you gain

insight into µC and DSP and

correlate these internal

operations with traffic on

the DigRF v3 interface.

Signal generator

BB-IC

Visibility

port

RF-IC

Spectrum analyzer

Logic analyzer

Figure 5. Test and measurement configuration for RF-IC BB-IC integration

Visibility into the internal

operation of the BB-IC can be

achieved by monitoring the

visibility port, which is designed

into the BB-IC. Typically, you

can track operation of the

microcontroller and DSP through

the visibility port. This allows you

to analyze control flow, track

internal processing of digital IQ

and correlate BB-IC internal

operations to DigRF v3 traffic.

Figure 6. Decoder view of BB-IC internal operation

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