Philips VAD8041 Service Manual page 43

Circuit Descriptions, Abbreviation List, and Data Sheets
PIN DESCRIPTION
PIN SYMBOL DESCRIPTION
1 HU+ positive Hall input U
2 HU- negative Hall input U
3 HV+ positive Hall input V
4 HV- negative Hall input V
5 HW+ positive Hall input W
6 HW- negative Hall input W
7 HBIAS Hall element bias
8 RREF ext. res. for current reference
9 REMF ext. res. for EMF regeneration
10 RLIM ext. res. for current limit
11 GNDSPN1 spindle driver power ground 1
12 U spindle driver output U
13 VDDSPN1 spindle driver power supply 1
14 V spindle driver output V
15 GNDSPN2 spindle driver power ground 2
16 W spindle driver output W
17 VDDSPN2 spindle driver power supply 2
18 FG frequency generator output
19 GNDDIG ground supply
20 INSPN spindle driver input
21 REF reference input voltage
22 VDDANA system supply voltage
23 CP1 charge pump cap. conn. 1
24 CP2 charge pump cap. conn. 2
25 CAPY charge pump output voltage
26 CTL1 driver logic control input 1
27 CTL2 driver logic control input 2
28 TEMP thermal warning
PIN SYMBOL DESCRIPTION
56 COSC ext. capacitor for int. oscillator
55 i.c.2 internally connected
54 i.c.1 internally connected
53 INLD loading driver input
52 INFCS focus driver input
51 INTRK tracking driver input
50 INTLT tilting driver input
49 VDDLD loading driver power supply
48 OUTLD+ loading driver positive output
47 OUTLD- loading driver negative output
46 OUTFCS+ focus driver positive output
45 OUTFCS- focus driver negative output
44 GNDACT actuator drivers power
ground
43 VDDACT actuator drivers power supply
42 OUTTRK+ tracking driver pos. output
41 OUTTRK- tracking driver neg. output
40 OUTTLT+ tilting driver pos. output
39 OUTTLT- tilting driver neg. output
38 CURSLD1 sled driver 1 current sense
37 OUTSLD1+ sled driver 1 positive output
36 OUTSLD1- sled driver 1 negative output
35 CURSLD2 sled driver 2 current sense
34 OUTSLD2+ sled driver 2 positive output
33 OUTSLD2- sled driver 2 negative output
32 VDDSLD sled driver power supply
31 GNDANA ground supply
30 INSLD2 sled driver 2 input
29 INSLD1 sled driver 1 input
VAD8041 9. EN 43