Table of Contents
Advertisement
IC401 (TC90A41AF) : DVD DSP (Digital Signal Processing ) & DVD Spindle
It receives the DVD RF From IC201 (TA1254F), works data slice, and transfer data to IC701
(TC6817F) with ECC.
It outputs PWM signal used in spindle Servo from Pin 52 to control the spindle servo in DVD mode.
Block Diagram
75
MD2
MD1
MD0
SD7
SD6
80
SD5
SD4
DVSS
DVDD3
SD3
85
SD2
SD1
SD0
SERR
SBGN
90
SENB
SDCK
DVSS
SREQ
RSTN
95
DVDD3
STDA
STCK
UPWM
DVSS
100
1
Servo
70
65
TC90A41
5
10
60
55
15
20
RVR1
50
RVSS
RFIN
RVDD
RVR2
AVDD
45
PVR
VRC
AVR
AVSS
SCLO
40
VCOF
LPFO
LPFN
RLLD
PDOP
35
PDON
TEST
ED7
ED6
ED5
30
ED4
ED3
ED2
ED1
25
31
Advertisement
Table of Contents
