Philips Semiconductors
Photodiode and amplifier IC for
CD and DVD applications
Preliminary specification
TZA1045
SYMBOL
PARAMETER
CONDITIONS
MIN.
In(o)
spot noise differential
Io = 2 mA; fo = 50 MHz
output current
reading DVD-ROM
−
reading CD-ROM
−
reading DVD+RW
−
reading CD-RW
−
Satellite segment outputs; pins E, F, G and H
B−3dB
channel E, F, G and H Io = 1 mA
RF bandwidth
writing DVD+R
65
writing CD-R
70
writing DVD+RW
90
writing CD-RW
60
reading DVD-ROM
85
reading CD-ROM
60
reading DVD+RW
80
reading CD-RW
40
Msens
channel E, F, G and H note 5
0
matching sensitivity
Vo
output voltage range
1
Io
output current
excluding writing CD-R
0
Io(offset) output offset current
dark conditions;
−25
Tamb = 0 to 70 °C
Io(clip)
current clipping level
CD-R writing; note 4
5
Settling time; note 6
tst(max)
settling time
CD-R write mode (central and −
satellite channels);
Iset > 300 µA; accuracy set
level within ±5%; ratio write to
read peak level factor <50
CD-R write mode (differential −
channels RFP and RFN);
Iset > 70 µA; accuracy set level
within ±5%; ratio write to read
peak level factor <50
CD-RW and DVD+RW write −
modes (all channels); no clip;
Iset > 70 µA; accuracy set level
within ±5%; ratio write to read
peak level factor 2; Io < Io(max)
DVD+R write mode (all
−
channels); no clip;
Iset > 100 µA; accuracy set
level within ±5%; ratio write to
read peak level factor 20;
Io < Io(max)
TYP.
360
1 250
515
1 400
85
90
115
75
110
75
100
50
−
−
0.75
−
−
< 22
< 22
< 10
< 15
MAX. UNIT
−
pA/√Hz
−
pA/√Hz
−
pA/√Hz
−
pA/√Hz
105
MHz
110
MHz
140
MHz
90
MHz
135
MHz
90
MHz
120
MHz
60
MHz
+5
%
VDD2 − 1 V
6.5
mA
+31
µA
8
mA
−
ns
−
ns
−
ns
−
ns
2003 Jun 26
11