saa7825 NXP Semiconductors, saa7825 Datasheet - Page 67
saa7825
Manufacturer Part Number
saa7825
Description
Cd Audio Decoder, Digital Servo And Filterless Dac With Integrated Pre-amp And Laser Control
Manufacturer
NXP Semiconductors
Datasheet
1.SAA7825.pdf
(88 pages)
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Part Number:
saa7825H
Manufacturer:
PHILIPS
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Philips Semiconductors
Table 59 level1, level2 parameter: amplitude of signal
Table 60 osc_inc parameter: focus/radial AGC system
Table 61 re_offset parameter: initial value setting
2003 Aug 13
level1, level2 (decimal)
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
128 to 255
xx00 0000
xx00 0001
xx00 0010
xx00 0011
xx11 1111
00xx xxxx
11xx xxxx
01xx xxxx
re_offset
injected into focus/radial AGC; RAM address
level1 = 69H, level2 = 6AH
control, oscillator frequency; RAM address 68H
osc_inc
1 to 126
127
127
128
0
a
0
i
i
Oscillator frequency Hz
Amplitude of injected
focus AGC active
radial AGC active
AGC system off
AGC control
not allowed
a
128/256
highest
4069.8
128/256
signal
higher
Value
129.2
193.8
i/256
64.6
i/256
0
0
0
64.6
67
Table 62 re_gain parameter: initial value setting
Table 63 sum_gain parameter: initial value setting
sum_gain
re_gain
127
127
128
127
128
127
0
1
0
1
i
i
1
1
i
i
Objective specification
( i + 128)/256
( i + 128)/256
(i + 128)/256
(i + 128)/256
not allowed
not allowed
127/256
128/256
129/256
255/256
127/256
128/256
129/256
255/256
Value
Value
1/256
1/256
SAA7825
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