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| 型號： | SAA7378GP |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single Chip Digital Servo Processor and Compact Disc Decoder |
| 中文描述： | 單片機數(shù)字伺服處理器和光盤解碼器 |
| 文件頁數(shù)： | 34/45頁 |
| 文件大?。?/td> | 224K |
| 代理商： | SAA7378GP |
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Philips Semiconductors
Preliminary specification: Version 1.0
May 1995
34
Digital Servo Processor and Compact Disc Decoder (CD7)
SAA7378GP
9.7.1
A list of the servo command parameters are given below:
Summary of Servo Command Parameters
parameter
RAM addr.
affects
POR
value
determines
foc_parm_1
-
focus PID
end of focus lead
defect detector enabling
foc_parm_2
-
focus PID
focus low pass
focus error normalising
foc_parm_3
-
focus PID
focus lead length
minimum light level
foc_int
14h
focus PID
focus integrator crossover freq
foc_gain
15h
focus PID
70h
focus PID loop gain
CA_drop
12h
focus PID
sensitivity of drop-out detector
ramp_offset
16h
focus ramp
assymetry of focus ramp
ramp_height
18h
focus ramp
p-p value of ramp voltage
ramp_incr
-
focus ramp
slope of ramp voltage
FE_start
19h
focus ramp
minimum value of focus error
rad_parm_play
28h
radial PID
end of radial lead
rad_pole_noise
29h
radial PID
radial low-pass
rad_length_lead
1Ch
radial PID
length of radial lead
rad_int
1Eh
radial PID
radial integrator crossover freq
rad_gain
2Ah
radial PID
70h
radial loop gain
rad_parm_jump
27h
radial jump
filter during jump
vel_parm1
1Fh
radial jump
PI controller crossover freqs
vel_parm2
32h
radial jump
jump pre-defined profile
speed_threshold
48h
radial jump
maximum speed in fastrad mode
hold_mult
49h
radial jump
00h
sledge bandwidth during jump
brake_dist_max
21h
radial jump
max sledge distance allowed in fast actuator
steered mode
sledge_long_brake
58h
radial jump
7Fh
brake distance of sledge
sledge_Umax
-
sledge
voltage on sledge during long jump
sledge_level
-
sledge
voltage on sledge when steered
sledge_parm_1
36h
sledge
sledge integrator crossover freq
sledge_parm_2
17h
sledge
sledge low pass freqs
sledge gain
sledge operation mode
defect_parm
-
defect detector
defect detector setting
shock_level
-
shock detector
shock detector operation
chip_init
-
setup
V
RH
level setting
laser on/off
RA, FO, SL PDM modulating freq.
xtra_preset
4Ah
setup
38h
config_parm1
42h
setup
initialisation
config_parm2
53h
setup
initialisation
config_parm3
59h
setup
initialisation
config_parm4
68h
setup
initialisation
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PDF描述 |
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| SAA7380 | Error correction and host interface IC for CD-ROM ELM |
| SAA7380GP | Error correction and host interface IC for CD-ROM ELM |
| SAA7381 | ATAPI CD-R block decoder |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7380 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7380GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7381 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ATAPI CD-R block decoder |
| SAA7382 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7382GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
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