tza1020 NXP Semiconductors, tza1020 Datasheet - Page 12

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

Philips Semiconductors
8.1.7
Table 15 Control byte for 8-bit sdfine-DAC; note 1
Note
1. The currents of all DACs is controlled by reference current (I
8.1.8
Table 16 Control bits for betactrl control via 5-bit DAC
Table 17 Control bits for betascl control via 5-bit DAC; note 1
Note
1. The currents of all DACs is controlled by reference current (I
2000 Oct 30
sdfine7 sdfine6 sdfine5 sdfine4 sdfine3 sdfine2 sdfine1 sdfine0
betascl4
Pre-amplifiers for CD-RW systems
0
0
0
1
1
1
0
0
0
1
1
1
C
C
ONTROL BYTE SUBADDRESS
ONTROL BYTE SUBADDRESS
betactrl1
0
0
0
1
1
1
betascl3
0
0
1
1
0
0
0
1
1
1
0
0
0
1
1
1
betascl2
code
0
0
0
1
1
1
0
0
0
1
1
1
:
code
04
05
:
0
0
0
1
1
1
betascl1
betactrl0
0
0
1
0
1
1
0
1
0
1
0
0
0
1
1
1
betascl0
12
0
1
0
1
0
1
0
0
1
0
1
1
RREF
RREF
). The given currents are valid at I
). The given currents are valid at I
0
1
0
1
0
1
CALF BANDWIDTH (Hz)
CURRENT betascl-DAC
100 A (code + 1)/32
TZA1020; TZA1020A
CURRENT sdfine-DAC
30 A (code + 1)/256
93.750 A
96.900 A
3.125 A
6.250 A
9.375 A
100 A
1000
2000
4000
500
:
0.117 A
0.234 A
0.352 A
29.76 A
29.88 A
30.0 A
Product specification
:
RREF
RREF
= 900 A.
= 900 A.