tza1020 NXP Semiconductors, tza1020 Datasheet - Page 11

• Manufacturer Part Number: tza1020
• Description: Pre-amplifiers For Cd-rw Systems
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 11 Control bits for current negain-DAC; note 1
Note
1. The currents of all DACs is controlled by reference current (I
8.1.6
Table 12 Control bit for tmdac
Table 13 Control bits for tlnlimit
Table 14 Control bits for current sumref-DAC; note 1
Note
1. The currents of all DACs is controlled by reference current (I
2000 Oct 30
negain4
sumref4
Pre-amplifiers for CD-RW systems
0
0
0
1
1
1
0
0
0
1
1
1
C
ONTROL BYTE SUBADDRESS
tlnlim1
sumref3
negain3
X
0
1
0
0
0
1
1
1
0
0
0
1
1
1
sumref2
negain2
tmdac
code
code
0
0
0
1
1
1
0
1
0
0
0
1
1
1
:
:
03
sumref1
negain1
0
0
1
0
1
1
0
0
1
0
1
1
tlnlim0
0
1
0
sumref0
negain0
11
0
1
0
1
0
1
0
1
0
1
0
1
RREF
RREF
clamp off
clamp on 1 (0.6 V; T
clamp on 2 (1.2 V; T
). The given currents are valid at I
). The given currents are valid at I
CURRENT sumref-DAC
CURRENT negain-DAC
100 A (code + 1)/32
15 A (code + 1)/32
TZA1020; TZA1020A
DESCRIPTION
DESCRIPTION
DAC test off
DAC test on
93.750 A
96.900 A
3.125 A
6.250 A
9.375 A
0.468 A
0.937 A
14.06 A
14.53 A
15.00 A
amb
amb
1.40 A
100 A
:
= 25 C)
= 25 C)
:
Product specification
RREF
RREF
= 900 A.
= 900 A.