TZA1035HL Datasheet, PDF (23/48 Pages) NXP Semiconductors – High speed advanced analog DVD signal processor and laser supply

Philips Semiconductors
High speed advanced analog DVD signal
processor and laser supply
Preliminary specification
TZA1035HL
BIT
SYMBOL
2
SW-B_inv
1
SW-A_mute
0
SW-A_inv
FUNCTION
0 = pass B signal with no inversion; 1 = pass B signal with inversion.
0 = pass A signal; 1 = mute A signal.
0 = pass A signal with no inversion; 1 = pass A signal with inversion.
7.3.10 REGISTER 11: RADIAL SERVO OFFSET CANCELLATION
Table 20 Register address BH
BIT
15
14
13
SYMBOL ^AD3
AD2
AD1
12
AD0
11
LF_OFFS1
10
LF_OFFS0
9
SERVOOS
8
FTCHBW
BIT
7
6
SYMBOL ^ROFFSE^{3 R}OFFSE²
5
R_OFFSE1
4
R_OFFSE0
3
R_OFFSF3
2
R_OFFSF2
1
R_OFFSF1
0
R_OFFSF0
Table 21 Description of register bits (address BH)
BIT
SYMBOL
15 to 12 AD[3:0]
11 and 10 LF_OFFS[1:0]
9
SERVOOS
8
7 to 4
FTCHBW
R_OFFSE[3:0]
3 to 0 R_OFFSF[3:0]
FUNCTION
1011 = address BH
DC offset compensation for LF path (V_LFOFFS). Common for all servo inputs:
SERVOOS = 0
SERVOOS = 1
00 = 0 mV
00 = 0 mV
01 = 5 mV
01 = 15 mV
10 = 10 mV
10 = 30 mV
11 = 15 mV
11 = 45 mV
Servo offset scale (DACs R_OFFSx, C_OFFSx and LF_OFFS). 0 = normal range;
1 = triple range.
FTC bandwidth. 0 = 600 kHz (approximately); 1 = 1.2 MHz (approximately.)
Programmable DC offset compensation for radial servo path (E input).
SERVOOS = 0: 0 to 20 mV; bit SERVOOS = 1: 0 to 60 mV.
Programmable DC offset compensation for radial servo path (F input).
SERVOOS = 0: 0 to 20 mV; bit SERVOOS = 1: 0 to 60 mV.
7.3.11 REGISTER 12: CENTRAL SERVO OFFSET CANCELLATION INPUTS A AND B
Table 22 Register address CH
BIT
15
14
13
SYMBOL ^AD3
AD2
AD1
12
D11
D10
AD0
TSTDPDRF TSTSRV2
D9
TSTSRV1
D8
TSTSRV0
BIT
D7
D6
SYMBOL ^COFFSA^{3 C}OFFSA²
D5
C_OFFSA1
D4
C_OFFSA0
D3
C_OFFSB3
D2
C_OFFSB2
D1
C_OFFSB1
D0
C_OFFSB0
2003 Jun 03
23