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VC2010

Agere Systems
Part Number VC2010
Manufacturer Agere Systems
Description High-performance Spindle/vcm Control
Published Aug 30, 2008
Detailed Description Product Brief November 2001 VC2010 High-Performance Spindle/VCM Control Features VCM Actuator Predriver I Voltage Moni...
Datasheet PDF File VC2010 PDF File

VC2010
VC2010

Overview
Product Brief November 2001 VC2010 High-Performance Spindle/VCM Control Features VCM Actuator Predriver I Voltage Monitor, System Reset, and Auxiliary Supplies 5 V, 12 V, and 3.
3 V undervoltage fault comparators Power-on reset signal output 3.
3 V regulator with voltage margin control and current limit Resistor adjustable negative voltage regulator for MR preamplifiers Programmable output voltage switching and linear regulators with undervoltage monitoring www.
DataSheet4U.
com I Transconductance amplifier with selectable class B or AB mode 14-bit DAC for actuator current control Regulated 3-stage retract on voltage fault or command Programmable on-chip transconductance compensation reduces external component count I I I I I I I Spindle Control I Other Features I I Motor inductance sense mode for determination of motor start position Microprocessor controlled ramp-to-start speed in start mode Sinusoidal current mode or 6-state commutation in run mode Programmable wave shape for optimized acoustic performance Transconductance configuration in run mode, using PWM for efficiency Peak current-limit control in start mode, using constant off-time method 10-bit DAC with 4-step gain ranging Fast restart from partial spindown, using phase frequency comparison of BEMF Automatic spindle dynamic brake at programmable RPM after retract 12-bit DAC to drive external microactuator driver 10-bit ADC to digitize selected internal and external signals Special diagnostic features for observation of onchip signals Supports 3-stage constant voltage retract I I I I I I Pin Information SWG NC CVCO GNDA1 RC VMAG RSM LVRB LVRS NC UDAC RBIAS SGND AMUX AUX1 AUX2 VCK12 VCK5 GNDA2 NC CP VMSW PUMP GNDSW NC UHSD PU ULSD VLSD PV VHSD GNDSW DMUX WHSD PW WLSD NRG V5 NC NREG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 I I I I VC2010 Serial Port Interface...


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