Videos
The notes, in motion
One video per topic, newest first. Point at a card for a silent preview.The card in the middle of the screen plays a silent preview. Open one to watch it whole.
28 videos, 28 with a note to read after.
Signal integrityCRCs on fast linksHow does a CRC catch bad bits, and what do fast links do when it fails?
Read Note 28
Signal integrityLine codesWhy do fast serial links use line codes like 8b/10b?
Read Note 26
RFTrace or U.FL jumperWhen does a U.FL jumper beat a trace to the antenna?
Read Note 25
Signal integrityI3C vs I2CWhat is I3C, and how does it differ from I2C?
Read Note 24
PowerCapacitorsWhich kind of capacitor should feed a load?
Read Note 13
PowerLiPo vs LiFePO4How does a LiFePO4 cell differ from a LiPo?
Read Note 18
PowerPower inductorsDoes it matter how a 4.7 µH inductor is built?
Read Note 12
PowerBattery balanceWhy does a LiPo pack need balancing?
Read Note 15
Signal integrityUSB-C alt modesWhat can a USB-C port carry besides USB?
Read Note 23
Signal integrityPHY and link layerWhat does the PHY do, and what does the link layer do?
Read Note 14
PowerGaN vs siliconWhy are USB-C chargers going GaN?
Read Note 11
EMCSpread spectrumWhat does spread spectrum do to a buck’s EMI test?
Read Note 6
PowerZero-voltage switchingWhat is zero-voltage switching, and what does it save?
Read Note 10
PowerSIMO convertersCan one inductor feed three rails?
Read Note 22
SensingSense positionLow side, high side or in line: where should a motor drive sense current?
Read Note 19
SensingShunt tapsWhere do you tap a 0.5 mΩ shunt?
Read Note 5
RFAntenna groundHow much ground does a 2.4 GHz PCB antenna need?
Read Note 3
PowerFET choiceIs the FET with the lowest Rds(on) the best one?
Read Note 20
LogisticsChip journeysWhere does a chip travel before it reaches your board?
Read Note 9
Board and fabThermal reliefShould a ground pin tie into the plane through a thermal relief?
Read Note 7
PowerPower quadrantsWhat are 1-, 2- and 4-quadrant power supplies?
Read Note 21
Signal integrityEye diagramHow do you read an eye diagram?
Read Note 8
Signal integrityVia stubsHow long a via stub can a fast link take?
Read Note 17
EMCUSB-C shellShould a USB-C shell go straight to ground, or through an RC?
Read Note 2
Signal integrityCar camera coaxHow does one coax carry a car camera’s video, control and power?
Read Note 27
Signal integrityTDRHow do you read a TDR trace?
Read Note 16
PowerGate ringingHow hard should you drive a half bridge?
Read Note 4
Signal integrityGround cutShould you cut ground under connector pads?
Read Note 1