參數(shù)資料
型號: SAA7348GP
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: All Compact Disc Engine ACE
中文描述: 8-BIT, MROM, 35 MHz, MICROCONTROLLER, PQFP100
文件頁數(shù): 45/60頁
文件大?。?/td> 205K
代理商: SAA7348GP
1997 Jul 11
45
Philips Semiconductors
Preliminary specification
All Compact Disc Engine (ACE)
SAA7348GP
8.4.1
S
UMMARY OF SERVO COMMAND PARAMETERS
Table 34
Servo command parameters
PARAMETER
RAM
ADDRESS
AFFECTS
POR VALUE
DETERMINES
foc_parm_1
focus PID
end of focus lead
defect detector enabling
OTD polarity
focus low-pass
focus error normalising
focus lead length
minimum light level
focus integrator crossover frequency
focus PID loop gain
sensitivity of drop-out detector
asymmetry of focus ramp
p-p value of ramp voltage
slope of ramp voltage
minimum value of focus error
initial value for RE_offset
initial value for RE_gain
initial value for sum_gain
end of radial lead
radial low-pass
length of radial lead
radial integrator crossover frequency
radial loop gain
filter during jump
PI controller crossover frequencies
jump pre-defined profile
maximum speed in fast track mode
electronic damping of radial actuator
sledge bandwidth during jump
max sledge distance allowed in fast
actuator steered mode
brake distance of sledge
two’s complement MSB of number of tracks
to jump
two’s complement LSB of number of tracks
to jump
radial and sledge control
voltage on sledge during long jump
voltage on sledge when steered
foc_parm_2
focus PID
foc_parm_3
focus PID
foc_int
foc_gain
CA_drop
ramp_offset
ramp_height
ramp_incr
FE_start
RE_offset
RE_gain
sum_gain
rad_parm_play
rad_pole_noise
rad_length_lead
rad_int
rad_gain
rad_parm_jump
vel_parm1
vel_parm2
speed_thres
act_sled
14H
15H
12H
16H
18H
19H
28H
29H
1CH
1EH
2AH
27H
1FH
32H
48H
49H
focus PID
focus PID
focus PID
focus ramp
focus ramp
focus ramp
focus ramp
radial initialization
radial initialization
radial initialization
radial PID
radial PID
radial PID
radial PID
radial PID
radial jump
radial jump
radial jump
radial jump
radial jump
70H
70H
00H
brake_dist_max
21H
radial jump
sledge_brake_dist
offtrack_hi
58H
radial jump
radial jump
7FH
offtrack_lo
radial jump
rad_stat
sledge_Umax
sledge_Uout
radial/sledge
sledge
sledge
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