Output drive current temperature characteristics
Output drive current temperature characteristics
when input signals are applied to both write channels at the same time
when input signals are applied to both write channels at the same time
Vcc = 5 V, Vop = 3 V
Vcc = 5 V, Vop = 2.5 V
500
450
450
400
350
300
250
200
150
100
400
350
300
250
200
150
100
50
0
25°C
25°C
50
0
150°C
150°C
0
100
200
300
400
0
200
400
600
800
Input current to each write channel [µA]
Input current to each write channel [µA]
I Figure 1 CD Output Drive Current Temperature
I Figure 2 DVD Output Drive Current Temperature
Characteristics
Characteristics
Write power 3
Write power 2
Write power 1
Read power
Cool power
0 mW
I Figure 3 Sample 5-Value Recording Waveform
Mode control logic
CMOS 3.3/TTL
100
8
7
6
5
4
3
2
1
LD1
(DVD)
LDEN
OSC
CONT
32
9
OUTEN3
LDOUT1
100
Iref
Iref
Iref
Iref
Iref Vref
10k
10k
20k
31
10
RAMP2
xOUTEN3
30
11
RAMP1
OUTEN4
OSC
100
29
12
xOUTEN4
RAMP11
28
13
Vcc_LD
OUTEN5
100
1µ
22k
27
14
xOUTEN5
R FREQ COMP
1µ
11k
15
R FREQ2
26
OUTENREF
1µ
11k
25
16
R FREQ1
VBG
17
18
19
20
21
22
23
24
LD2
(CD)
1µ
1µ
Voltage DAC
I Figure 4 Application Circuit Example
13
SONY [ SONY CORPORATION ]
