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參數(shù)資料
| 型號(hào)： | TZA1045 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Photodiode and amplifier IC for CD and DVD applications |
| 中文描述： | 光電二極管與放大器，CD和DVD的集成電路應(yīng)用技術(shù) |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 92K |
| 代理商： | TZA1045 |
2003 Jun 26
13
Philips Semiconductors
Preliminary specification
Photodiode and amplifier IC for
CD and DVD applications
TZA1045
Notes
1.
2.
The supplies are connected internally by diodes. Differences between the supply voltages should not exceed 0.3 V.
Estimated average power consumption (typical value):
P = V
DD
×
(1.4
×
I
o(av)
×
9 + I
DD1
+ I
DD2
) where I
o(av)
is the average output current.
Conditions: V
DD
= V
DD1
= V
DD2
and I
o
< 8 mA.
3.
Outputs A, B, C, and D: I
o
= 1 mA output current. Definition of matching:
where
V
ref
= V
ref1
= V
ref2
(see Fig.5) and I
(o)av
is the average output current.
The clipping function is active in the CD-R write mode for the segment outputs (not for outputs RFP and RFN) and
in the read mode for all outputs. In the read mode, the clipping level is increased to 8 mA.
4.
5.
Outputs E, F, G, and H: I
o
= 1.5 mA output current. Definition of matching:
where
V
ref
= V
ref1
= V
ref2
(see Fig.5) and I
(o)av
is the average output current.
M
sens
=
±
7% for reading CD-RW, CD-ROM, DVD+RW and writing CD-R mode.
The settling time includes the recovery time.
6.
7.
Definition:
8.
The sensitivity of the TZA1045 is specified in A/W because it has current outputs. In the application diagram
(see Fig.5) the resistors of 150
convert the currents into voltages (V/W). The maximum absolute spread is
±
10%.
Writing without clipping.
10. Writing with clipping in CD-R mode for all segment outputs (not outputs RFP and RFN).
11. Reading with clipping active and switched to a level of typical 8 mA.
9.
s
CD-ROM
output current sensitivity
for CD-ROM
reading;
λ
= 785 nm; note 11
I
o(cen)
I
o(sat)
I
o(RFP)
, I
o(RFN)
86.4
346
32.4
A/W
A/W
A/W
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
I
–
I
A
I
B
I
C
I
D
+
+
+
(
)
1
4
×
-----------------------------------------------------
V
ref
I
o
( )
av
×
–
I
I
–
I
E
I
F
I
G
I
H
+
+
+
(
)
1
4
×
-----------------------------------------------------
V
ref
I
o
( )
av
×
–
20log
I
RFP
I
RFN
I
RFN
+
–
I
×
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