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| 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)： | 25/69頁(yè) |
| 文件大小： | 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
31 of 69
Philips Semiconductors
TZA1047
Preprocessor IC for CD and DVD rewritable
7.11.1 Auxiliary block
The AUX block produces the auxiliary signals QM1 to QM6, QT1 to QT6, QSNORM, satsum
and mir which are dened as:
QM1 to QM6 = Q1 to Q6 (routed to MON block).
QT1 to QT6 = Q1 to Q6 (routed to output).
QSNORM = Q1 + Q2 + Q3 + Q4.
satsum = Q5 + Q6 (switched off when ALF1/2 = 0).
The mirror signal mir components are dened in Table 15.
7.11.2 Dropout concealment block (normalizer sub-block)
The DOC block produces currents IDOC1 to IDOC4 (IDOCi) for the Normalizer circuits within
sub-blocks FOC, RAD and TL.
A Normalizer circuit N with input currents I1 and I2 produces the following
dropout-concealed output current IO:
where IDOC is a dropout-concealed scaling current, produced by the DOC block, that is
chosen according to the modulation depth of the signal to be normalized.
Fig 16. AUX block.
Table 15:
Signal mir components
Bit S4/8
Bit CA/PP
Signal mir
00QSNORM
01QSNORM
10Q5 + Q6 + QSNORM
11Q5 + Q6
001aab192
mir
satsum
QSNORM
QM1 to QM6
QT1 to QT6
Q1 to Q6
Q/NE, ALF1/2,
S4/8, CA/PP
AUX
I
O
I
1
I
2
–
I
1
I
2
+
----------------
I
DOC
×
=
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