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參數(shù)資料
| 型號(hào)： | TZA1047HL/M2 |
| 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)： | 36/69頁(yè) |
| 文件大?。?/td> | 324K |
| 代理商： | TZA1047HL/M2 |
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9397 750 14664
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 1 June 2005
41 of 69
Philips Semiconductors
TZA1047
Preprocessor IC for CD and DVD rewritable
A graphical representation of the BETA measurement is shown in Figure 23.
7.14 Monitor block
The MON block is intended for application tests and is never used during normal
operation. It converts two bipolar current input signals to two bipolar (w.r.t 0.5VDD) voltage
mode outputs. The two current input signals can be selected from various internal
currents by I2C-bus control word MSEL[7:0]. The conversion resistance from current to
voltage is typically 80 k
. The bandwidth of the monitor circuit is 100 kHz. The monitor
block is specied for an external load of 10 pF and 10 k
to GND.
Table 23 shows the MSEL[7:0] values for selecting the two input currents to be converted
and sent to monitor outputs MON1 and MON2.
P = instantaneous laser power.
Popt = optimum laser write power setting.
Fig 23. BETA measurement.
A1
A2
CALF
P
< P
opt
P
> P
opt
EFM
signal
A1
A2
mce534
Table 23:
Monitor selection
MSEL7
MSEL6
MSEL5
MSEL4
MON2
MSEL3
MSEL2
MSEL1
MSEL0
MON1
0000REN
0001TLN
0010FEN
0011
MIRN
0011
MIRN
0100ALFA/7
0101XDN
0110CAN
0111res.
1000
Q1/10
1000
Q1/10
1001
Q2/10
1001
Q2/10
1010
Q3/10
1010
Q3/10
1011
Q4/10
1011
Q4/10
1100
Q5/10
1100
Q5/10
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