TZA1020HP/A PHILIPS [NXP Semiconductors], TZA1020HP/A Datasheet - Page 26
TZA1020HP/A
Manufacturer Part Number
TZA1020HP/A
Description
Pre-amplifiers for CD-RW systems
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.TZA1020HPA.pdf
(36 pages)
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Philips Semiconductors
Table 28 Fast track count; note 1
Note
1. The currents are proportional to I
Table 29 Spot position measurements
Table 30 Laser power calibration (beta circuit); note 1
Note
1. The currents are proportional to I
2000 Oct 30
I
I
00 (POR)
01
10
11
I
sd-fine
ref
betascl
Pre-amplifiers for CD-RW systems
FTC CURRENTS
meassel CODE
BETA CIRCUIT
CURRENTS
CONTROL SIGNAL
CONTROL SIGNAL
betascl4 to betascl0
sdfine7 to sdfine0
RREF
RREF
G
cd
. The given current values are valid at I
. The given current values are valid I
[(I
G
G
G
C1
sd
sd
sd
+ I
(I
(I
(I
I
MEAS1
SA1
SA1
SA1
C4
)
+ I
+ I
(I
I
SA2
SB1
SA2
C2
26
)
)
)
+ I
C3
CONTROL SIGNAL
CONTROL SIGNAL
)]
BINARY VALUE
BINARY VALUE
0000000
0111111
1111111
00000
01111
11111
:
:
:
:
RREF
RREF
G
= 900 A.
TZA1020; TZA1020A
cd
= 900 A.
[(I
G
G
G
C1
sd
sd
sd
VALUE CURRENT ( A)
VALUE CURRENT ( A)
+ I
(I
(I
(I
I
MEAS2
SB2
SA2
SB1
C2
)
Product specification
+ I
+ I
(I
I
SB1
SB2
SB2
3.125
C3
0.12
100
15
30
20
50
:
:
)
:
:
)
)
+ I
C4
)]
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