TDA5345HT datasheet(4/44 Pages) PHILIPS

tên linh kiện	TDA5345HT

Giải thích chi tiết về linh kiện	5 V spindle & VCM driver combo

PDF	44 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

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1999 June 10

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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