saa7826 NXP Semiconductors, saa7826 Datasheet - Page 65

• Manufacturer Part Number: saa7826
• Description: Cd Audio Decoder, Digital Servo And Filterless Dac With Integrated Pre-amp And Laser Control
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 52 hold_mult parameter: velocity proportional part
2003 Oct 01
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
hold_mult
vel_prop1
vel_prop2
0000 xxxx
1000 xxxx
0100 xxxx
1100 xxxx
0010 xxxx
1010 xxxx
0110 xxxx
1110 xxxx
0001 xxxx
1001 xxxx
0101 xxxx
1101 xxxx
0011 xxxx
1011 xxxx
0111 xxxx
1111 xxxx
xxxx x000
xxxx x001
xxxx x010
xxxx x011
xxxx x100
xxxx x101
xxxx x110
xxxx x111
(binary)
during long jump, sledge gain in steered sledge
mode; RAM address 49H
Hex
Cx
Ax
Ex
Dx
Bx
0x
8x
4x
2x
6x
1x
9x
5x
3x
7x
Fx
x0
x1
x2
x3
x4
x5
x6
x7
part during long
Sledge gain in
steered mode
proportional
0.015625
0.031250
0.046875
0.062500
0.078125
0.093750
0.109375
0.125000
0.140625
0.156250
0.171875
0.187500
0.203125
0.218750
0.234375
Velocity
jump K
G
12
16
24
0
2
3
4
6
8
S
p
65
Table 53 speed_threshold parameter: maximum sledge
Table 54 sledge_long_brake parameter: maximum
speed_threshold value
sledge_long_brake
(decimal)
(decimal)
speed allowed in fast actuator steered mode;
RAM address 48H
sledge distance allowed in sledge steered
mode; RAM address 58H
0...127
3... 127
1... 128
3...62
128
63
64
1
2
1
2
1
tracks (x 1000 tracks/sec)
steered mode, number of
Maximum sledge speed
allowed in fast actuator
sledge steered mode,
distance allowed in
Maximum sledge
number of tracks
3
test always true
Product specification
not allowed
reset value
reset value
128...62
63
1
2
3...127
SAA7826
128
1
2
128
128
128
128