For Audio Equipment
MN6650A
Signal Processing LSI for CD Players
Overview
The MN6650A is a digital servo LSI for creating high-
precision servo systems with completely self-adjusting
focus, tracking, and traverse servos.
Pin Assignment
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
XI
TO
T1
T2
T3
T4
T5
T6
VDET
TBAL
TRCRS
34
35
36
37
38
39
40
41
42
43
44
33
32
31
30
29
28
27
26
25
24
23
RST
TLOCK
FLOCK
SENSE
MLD
MCLK
MDATA
TRON
CLVS
V
SS
TEST
Applications
CD Players
QFP044-P-1010
TEST
PLAY
RFDET
DO
OFT
ARF
WVEL
PBO
TE
FE
VR2
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
KICK
TRD
FOOD
TVD
TRV
V
DD
AV
DD
AV
SS
V
SS
LDON
VR1
(TOP VIEW)