Panasonic MN6650A Datasheet
For Audio Equipment
MN6650A
Signal Processing LSI for CD Players
Overview
The MN6650A is a digital servo LSI for creating highprecision servo systems with completely self-adjusting
focus, tracking, and traverse servos.
Features
Focus servo
Tracking servo
Traverse servo
Automatic adjustment functions for FO/TR gain, FO/
TR offset, and FO/TR balance
PWM output with tristate output from a single pin
Built-in dropout countermeasures
Anti-shock functions
Support for both linear motor and screw-based traverse
mechanisms
Function to prevent runaway traverse operation
Support for 3- and 1-beam systems
Support for double-speed playback
Microcomputer serial interface
Operating voltage 4.5 to 5.5V
Pin Assignment
RST
TLOCK
XI
TO
T1
T2
T3
T4
T5
T6
VDET
TBAL
TRCRS
3332313029282726252423
34
35
36
37
38
39
40
41
42
43
44
1234567891011
TEST
PLAY
FLOCK
SENSE
DO
RFDET
MLD
MCLK
OFT
ARF
MDATA
TRON
CLVS
TE
PBO
WVEL
V
FE
SS
TEST
22
21
20
19
18
17
16
15
14
13
12
VR2
KICK
TRD
FOOD
TVD
TRV
V
DD
AV
DD
AV
SS
V
SS
LDON
VR1
Applications
CD Players
(TOP VIEW)
QFP044-P-1010
MN6650A For Audio Equipment
Block Diagram
10
FE
TE
PBO
VR1
VR2
9
8
12
11
A/D
CONVERTER
CPU
OUTPUT
PORT
13
26
31
32
2
1
LDON
PLAY
TRON
FLOCK
TLOCK
TES
WVEL
SENSE
MDATA
MCLK
MLD
7
30
27
28
29
MICROCOMPUTER
INTERFACE
TIMING
GENERATOR
3
5
34
XI
OFT
RFDET
INPUT PORT
TRACK
COUNTER
42
4
25
DO
CLVS
VDET
44
TRCRS
16
DD
AV
17
V
DD
15
AV
PWM
14
SS
SS
V
33
23
RST
TEST
T0 to 3
22
18
20
21
19
43
T4 to 6
KICK
TRV
FOD
TRD
TVD
TBAL
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