Cypress CYS25G0101DX-ATC Manual De Usuario
CYS25G0101DX-ATC Evaluation Board User’s Guide
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6.4 Set-up for Testing the TX PLL in Parallel Line Loopback Mode
Figure 11
illustrates the set-up for testing the TX PLL in Parallel Line Loopback Mode. The equipment list :
1. Evaluation Board – Cypress CYS25G0101DX Evaluation Board
2. Pattern Generator – Tektronix D3186 Pattern Generator
3. Error Detector– Tektronix D3286 Error Detector
4. Pulse Generator - HP 8133A Pulse Generator
5. Power Supply – HP E3631A DC Power Supply
* All equipment in the list is for reference only
Figure 11. Equipment Set-up For Testing the TX PLL in Parallel Line Loopback Mode
IN+
IN-
OUT-
OUT+
Tektronix D3186
Pattern Generator
Pattern Generator
Cypress CYS25G0101DX
Evaluation Board
Evaluation Board
Tektronix D3286
Pattern Analyzer
Pattern Analyzer
CLK2
50Ω Terminator For OUT-
HP E3631A
Power Supply
Power Supply
CLK1
External
Input
External
Input
Out
put+
O
ut
put
-
1. Disconnect CLKVCC
2. Remove the OSC
3. Place C400 on C402 and
2. Remove the OSC
3. Place C400 on C402 and
C401 on C403 positions
HP 8133A Pulse Generator
(configure to Output = Input Clock divided by 16)