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EB-GS3440

Evaluation Board User Guide

1 of 10

GS3440

EB-GS3440
Evaluation Board User Guide
57964 - 0

June 2012

www.semtech.com

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Summary of Contents for EB-GS3440

Page 1: ...EB GS3440 Evaluation Board User Guide 1 of 10 GS3440 EB GS3440 Evaluation Board User Guide 57964 0 June 2012 www semtech com...

Page 2: ...s 4 1 2 Power 4 1 3 Switch Settings 5 1 4 Jumper Settings 5 1 5 Potentiometer Settings 6 1 5 1 OP_CTL Potentiometer Settings 6 1 5 2 Squelch Adjust SQ_ADJ Potentiometer Settings 6 1 6 LED Indicator 6...

Page 3: ...ts Gennum EB GS3440 Evaluation Board CD containing GS3440 collateral Overview The purpose of the EB GS3440 Evaluation Board is to evaluate the GS3440 Extended Reach 3G HD SD Adaptive Cable Equalizer w...

Page 4: ...ectors 1 2 Power The EB GS3440 features three power posts 3V3 GND VCCO By default the GS3440 can be powered with a single power supply connected to 3 3V Alternatively the GS3440 outputs can be powered...

Page 5: ...F Description Switch ON Description GS 0 Gain Select off no change in gain default 1 Gain Select on 6dB gain BP 0 Bypass off default 1 Bypass on Table 1 2 AUTOSLEEP JP2 Jumper Settings Label Connectio...

Page 6: ...reshold of the CD pin When the SQ_ADJ input is 0V all cable lengths will be equalized When the SQ_ADJ input is 3 3V there will be no equalization regardless of the cable length Please refer to the GS3...

Page 7: ...nF 75 GS3440 470nF 37 4 VCC_A_94 5 0k SMA 4 7nH SWDIP2 WHITE 1 F SMA VCC_A_94 RED 100k MMBT3904 14k 1 21k YELLOW VCC_DIG_94 365 VCC_O_94 1 F 221 5 0k 75 BNC 10nF 10nF 100nF VCC_O_94 10 F 10 F 100nF R6...

Page 8: ...GS3440 Evaluation Board User Guide 57964 0 June 2012 8 of 10 3 Board Layout Figure 3 1 Layer 1 Top Layer and Top Silkscreen Figure 3 2 Layer 2 Ground Figure 3 3 Layer 3 Power Figure 3 4 Layer 4 Botto...

Page 9: ...P4 Connector header 2mm single straight 36 position 2 positions used 1 JP3 Connector header 2mm single straight 36 position 3 positions used 2 L1 L2 Inductor 4 7nH 300mA 0402 1 Q4 Transistor GP NPN AM...

Page 10: ...UCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER S OWN RISK Should a customer purchase or use Semtech products for any such unauthorized application the customer shall i...

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