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參數(shù)資料
| 型號(hào)： | TZA1047HL/M1B |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.4 MM HEIGHT, PLASTIC, MS-026, SOT314-2, LQFP-64 |
| 文件頁(yè)數(shù)： | 69/69頁(yè) |
| 文件大?。?/td> | 324K |
| 代理商： | TZA1047HL/M1B |
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9397 750 14664
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 1 June 2005
9 of 69
Philips Semiconductors
TZA1047
Preprocessor IC for CD and DVD rewritable
7.2 Supported servo modes
The TZA1047 supports several servo modes. The denitions of output signals FTC and
Q1 to Q6 depend on the servo mode that is selected via the I2C-bus. The bits that dene
the servo mode and their meaning are summarized in Table 4.
The various servo signals are generated in the Normalizer (Norm), DPD and FTC blocks.
For details, refer to the appropriate sections in this Chapter.
7.3 Diagram conventions
Single-bit control names have the format X/Y. When:
X/Y = 0: port Y is selected, or Y is TRUE
X/Y = 1: port X is selected, or X is TRUE.
Some internal signals control sampling switches. The switch is on when the signal is
1 (HIGH).
Many signals to and from the TZA1047 are currents. External currents which sink via the
TZA1047 are positive and currents sourced by the TZA1047 are negative.
Table 4:
Servo modes
Name
Value
Conditions
Meaning
CA/PP
0
DPD = 0
push-pull signal processing
1
DPD = 0
3-spot Central Aperture signal processing
DPD
0
non-DPD based radial error signal
1
DPD-based radial error signal
DTDC/I
0
DPD = 1
DTD based on individual segments
1
DPD = 1
DTD based on combined segments
PD1
0
DPD = 1
DTD4 or DTD4a detection method
1
DPD = 1
DTD2a method
SP3/1
0
D/F = 0; FSEL = 1
FTC based on 1-spot push-pull
1
D/F = 0; FSEL = 1
FTC based on 3-spot push-pull
FSEL
0
FTC based on 1-spot Central Aperture
1
other FTC method
D/F
0
FSEL = 1
non-DPD based FTC
1
FSEL = 1
DPD based FTC
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