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參數(shù)資料
| 型號： | TZA1047HL/M3 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 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 |
| 文件頁數(shù)： | 33/69頁 |
| 文件大小： | 324K |
| 代理商： | TZA1047HL/M3 |
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9397 750 14664
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 1 June 2005
39 of 69
Philips Semiconductors
TZA1047
Preprocessor IC for CD and DVD rewritable
For SQRT = 1:
(6)
The nal transfer functions for the ALFA block, including the CANORM block, are given in
Table 22. LASP (sampled) is the optionally sampled LASP signal in the CANORM block
(see also Figure 20).
7.12.1.2
ALFA circuit general
The ALFA block is enabled by setting bit ENALF to logic 1. When bit ENALF = 0, the ALFA
output current remains at zero and the circuit is powered down to save power. Signal
ALFA is also automatically switched off in read mode when bit r/w = 1. A copy of signal
ALFA (alfa-mon) output current is routed to the MON block for test purposes. The polarity
of the ALFA output signal current is negative, i.e. the current is sourced by TZA1047.
Table 22:
ALFA signal
Bit ALF1/2
Bit SQRT
Signal ALFA
10
11
00
01
ALFA
I
AN
I
ref ALFA
()
-------------------------
INA
SLASP
------------------
LASP
×
=
ALFA
I
AN
I
ref ALFA
()
-------------------------
satsum
8
LASP sampled
()
×
---------------------------------------------------
LASP
×
=
ALFA
I
AN
I
ref ALFA
()
-------------------------
satsum
8
LASP sampled
()
×
---------------------------------------------------
LASP
×
=
ALFA
I
AN
I
ref ALFA
()
-------------------------
srf
4
LASP sampled
()
×
---------------------------------------------------
LASP
×
=
ALFA
I
AN
I
ref ALFA
()
-------------------------
srf
4
LASP sampled
()
×
---------------------------------------------------
LASP
×
=
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