TDA5345HT Datasheet, PDF (42/44 Pages) NXP Semiconductors – 5 V spindle & VCM driver combo

Philips Semiconductors
5 V spindle & VCM driver combo
Preliminary specification
TDA5345HT
+5V
(4)
(14)
(63)
(40)
(24)
(56)
VcmVddM VcmVddP IsoSwSo Vdd5Dig Vdd5Ana1 Vdd5Ana2
C1 ^{(53) ShockCom}
(54) ShockAmpOut
(51) ShockFiltOut
C2
(55) ShockInput
R2
C2
VCM
(50) ShockRef
(31) OpAmpOut
(30) OpAmpInM
(18) VcmRef
(21) VcmVdd5Div2
(11) VcmPlus
(62) RetPmDrain
Reg3v3PwrUp (34)
RegNPNBase (46)
RegSense (47)
SpinMotA (3)
SpinMotB ⁽⁸⁾
SpinCenterTap (61)
SpinMotC (13)
SpinRectBemf (2)
SpinVddA (1)
SpinVddBC (10)
BrakePower (60)
SpinSpeedFilter (58)
SpinCompens (59)
T1
3v3
C14
Spindle
C13
C12
C11
C9
C10
R5
C4
MR preamp
C6
(6) VcmMinus
(23) VcmSenseInP
(22) VcmSenseInM
C3 _{(17) VcmCompensOut}
(19) VcmCompensIn
(20) VcmInput
(49) _VcmDacOut
(45) RetReset
(36) Neg3V
(35) PumpNeg3V
C5
BdGap (27)
VcmBemf (29)
TempMux (57)
CLOCK ⁽³⁸⁾
SCLK (41)
SDATA (39)
SEN_N (42)
SpinDigOut (44)
SpinMechClock (43)
ShockCompOut (52)
PowerFault (37)
(33) RefCurRes
(12) NC1
(7) NC2
PorN (25)
PorCap (26)
Por5Adj ₍₂₈₎
VcmGndPow(9)
SpinGndAB SpinGndC GNDAna1 GNDAna2 GNDAna3 GndDig
(5)
(15)
(16)
(32)
(64)
(48)
Fig.27
TYPICAL APPLICATION SCHEMATIC
GND
Analog
to dig.
conv
ASIC
C8
C7
1999 June 10
42