at78c1502 ATMEL Corporation, at78c1502 Datasheet - Page 5

• Manufacturer Part Number: at78c1502
• Description: Dvd/cd Servo
• Manufacturer: ATMEL Corporation

2050A–DVD–07/02
Table 1. External Pin Definition (Continued)
Pin #
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
Symbol
TZC
MIRR
FOK
HD1,2
DGND
DGND
HD3,4
CNTRST
SINT
SF
ADCSTR
AVDD
MUX_OUT
AIN6
AIN5
MTRK
MTRKFB
AGND
LPS
LPS
FCS
FCSF
AVDD
SUM
SUMF
RDSZ
RDSZF
N/C
N/C
ADCREF
AGND
AGND
N/C
VBG
2VBG
AVDD
Type
AO
AO
AO
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
O
O
O
P
P
P
P
P
P
P
P
I
I
I
I
I
I
Description
Track Zero Crossing from Read Channel
Mirror Input from Read Channel
Focus OK Signal from Read Channel
Header 1, 2 Input from Read Channel
Digital Ground
Digital Ground
Header 3, 4 Input from Read Channel
TSM Counter Reset Signal
Servo Interrupt Output to Controller
Servo Fault Output to Controller
ADC Strobe Output from TSM
Analog VDD
Analog MUX Output
Analog Input to MUX
Analog Input to MUX
MUXed Track Track/Hold Input
MUXed Track Filter Input
Analog Ground
Lens Position Sensor Track/Hold Input
Lens Position Sensor Filter Input
Focus Error Signal Track/Hold Input
Focus Error Signal Filter Input
Analog VDD
Slow Sum Track/Hold Input
Slow Sum Input Filter
Read Size Input
Read Size Input Filter
No Connect
No Connect
Reference I/P for ADC
Analog GND
Analog GND
No Connect
Bandgap Output Voltage
2*Bandgap Output Voltage
Analog VDD
5