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TDA5345HT Fiches technique(PDF) 4 Page - NXP Semiconductors |
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TDA5345HT Fiches technique(HTML) 4 Page - NXP Semiconductors |
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4 / 44 page ![]() 1999 June 10 4 Philips Semiconductors Preliminary specification 5 V spindle & VCM driver combo TDA5345HT GENERAL BLOCK DIAGRAM Spindle drivers Vcm AB class drivers 12-bit DAC reference generator Power On Reset Thermal monitor commutation manager Retract Shock sensor amplifier brake SpinMotA SpinMotB SpinMotC VcmMinus VcmPlus SpinSpeedFilter VcmDacOut VcmCompensIn ShockCompOut ShockFiltOut PumpNeg3V RegNPNBase RegSense TempMux PorN PorCap Por5Adj PowerFault SCLK SDATA SEN_N CLOCK VcmCompensOut SpinCompens Bemf Comp SpinCenterTap Current sense Amplifier VcmSenseInM VcmSenseInP (digital) MechClock SpinDigOut BrakePower Vcm 6-bit DAC 3.3V Regulator Serial interface (digital) Vcm back-EMF Amplifier VcmBemf + + Fig.1 Speed Loop (FLL/PLL) Charge Pumps Start-Up current limiter 3-step & spindle Negative supply regulator Neg3V VcmInput (digital) ShockInput ShockFiltOut RetReset Reg3v3PwrUp OpAmpInM OpAmpOut |
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