參數(shù)資料
型號(hào): SAA7826HL
廠商: NXP Semiconductors N.V.
元件分類: DRAM
英文描述: CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control
封裝: SAA7826HL/M1AS/S5<SOT315-1 (LQFP80)|<<http://www.nxp.com/packages/SOT315-1.html<1<Always Pb-free,;
文件頁(yè)數(shù): 64/89頁(yè)
文件大?。?/td> 379K
代理商: SAA7826HL
2003 Oct 01
64
Philips Semiconductors
Product specification
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
SAA7826
Table 46
brake_dist_max parameter: maximum sledge
distance allowed in fast actuator steered mode;
RAM address 21H
Table 47
sledge_Umax parameter: voltage on sledge
during long jump
Table 48
sledge_level parameter: voltage on sledge
when steered
Table 49
jumpwatchtime parameter: radial jump
watchdog readout time difference; RAM
address 57H
Table 50
playwatchtime parameter: radial play watchdog
maximum time-out; RAM address 54H
Table 51
radcontrol parameter: automatic radial servo
switch-off control; RAM address 59H
brake_dist_max value
(decimal)
Maximum sledge
distance allowed in fast
actuator steered mode,
number of tracks
0...127
1
2
....
i
....
127
128
not allowed
1
×
16
2
×
16
....
i
×
16
....
127
×
16
128
×
16
sledge_Umax (decimal)
voltage on sledge
255/256
×
V
DD
(i + 128)/256
×
V
DD
0.5
×
V
DD
(128
1)/256
×
V
DD
(
i + 128)/256
×
V
DD
0
127
i
0
1
i
128
sledge_level (decimal)
voltage on sledge
127/256
×
V
DD
i/256
×
V
DD
0
1/256
×
V
DD
i/256
×
V
DD
128/256
×
V
DD
127
i
0
1
i
128
jumpwatchtime
Radial jump watchdog
readout time difference
ms
80H to FFH
0H
1H
i
7FH
none
0
0.25
i
×
0.25
32
playwatchtime
Radial play watchdog
maximum time-out ms
80H
81H
82H
i
00H
j
7fH
0
0.5
1
(i
80H)
×
0.5
64
(j + 80H)
×
0.5
128
radcontrol
Hex
Automatic
radial servo
switch-off
control
0000 0000
00
radial servo not
influenced by
watchdog
switch-off radial
servo on jump
error; no action
on play error
switch-off radial
servo on play
error; no action
on jump error
switch-off radial
servo on play or
jump error
0100 0000
40
0010 0000
20
0110 0000
60
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