SAA7826HL Philips Semiconductors, SAA7826HL Datasheet - Page 66

• Manufacturer Part Number: SAA7826HL
• Description: CD audio decoder/ digital servo and filterless DAC with integrated pre-amp and laser control
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 55 defect_parm parameter: defect detector control
Table 56 interrupt_mask parameter: mask to enable
2003 Oct 01
defect_parm
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
defect_parm
defect_parm
defect_parm
xxxx xx00
xxxx xx01
xxxx xx10
xxxx xx11
xxxx 10xx
xxxx 11xx
xxxx 00xx
xxxx 01xx
xx00 xxxx
xx01 xxxx
xx10 xxxx
xx11 xxxx
00xx xxxx
01xx xxxx
10xx xxxx
11xx xxxx
interrupt_mask
0000 0000
xxxx xxx1
xxxx xx1x
xxxx x1xx
xxxx 1xxx
xxx1 xxxx
xx1x xxxx
x1xx xxxx
interrupt in interrupt status register; RAM
address 53H
Defect detector maximum ON time
Slow filter time
constant
16 ms
8 ms
4 ms
2 ms
reserved for future use
reserved for future use
Fast filter bandwidth
Coefficient
no interrupt
focus lost
subcode ready
subcode absolute seconds
changed
subcode discontinuity
radial error
autosequencer state
changes
autosequencer error
14000 Hz
Interrupt enabled
3500 Hz
7000 Hz
0.0625
1.0 ms
1.5 ms
2.0 ms
2.5 ms
0.125
0.25
Alpha value
value
0.00006
0.00012
0.00024
0.00048
66
Table 57 time_parameter: timer interrupt values
Note
1. The time_parameter values are also used for
Table 58 phase_shift parameter: focus/radial AGC
Note
1. The value a is the value programmed in Table 60 as
time_parameter value
phase_shift
focus_start_time, motor_start_time1,
motor_start_time2, radial_init_time and brake_time.
the 6 LSBs of osc_inc.
(decimal)
1
2
i
128
1
2
128
i
129
144
160
176
192
208
224
2402
(decimal)
96
0
16
32
48
64
80
a
0
112...127
detection phase shift; RAM address 67H
a
a
(1)
a
a
a
111
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
15
111
143
159
175
191
207
223
239
31
47
63
79
95
(1)
55
Focus/radial AGC detection phase
i
i
120.94
60.47
120.94
60.47
( s)
60.47
60.47
0
Timer interrupt values
141.4 + 4.92
398.5 + 6.40
614.6 + 8.00
224.1 + 5.33
305.4 + 5.82
500.8 + 7.11
68.2 + 4.57
888.9 + 10.6
1059 + 12.8
1263 + 16.0
1519 + 21.2
1860 + 32.0
2372 + 64.0
742.6 + 9.11
wait time (ms)
4.26
shift
Product specification
180
180
180
3398.0
180
infinite
SAA7826
180
180
(i
(deg)
(2
(i
180
180
(2
(i
(i
128)
(i
(i
(i
0
(i
(i
(i
(i
(i
(i
(i
(i
(a/128)
(i
(a/128)
a/128)
a/128)
144)
a/128)
a/128)
160)
208)
240)
i
176
192
224
32)
48)
64)
80)
96)
16)