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TZA1020HP Datasheet(PDF) 11 Page - NXP Semiconductors

Part # TZA1020HP
Description  Pre-amplifiers for CD-RW systems
Download  36 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TZA1020HP Datasheet(HTML) 11 Page - NXP Semiconductors

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2000 Oct 30
11
Philips Semiconductors
Product specification
Pre-amplifiers for CD-RW systems
TZA1020; TZA1020A
Table 11 Control bits for current negain-DAC; note 1
Note
1. The currents of all DACs is controlled by reference current (IRREF). The given currents are valid at IRREF = −900 µA.
8.1.6
CONTROL BYTE SUBADDRESS 03
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 (IRREF). The given currents are valid at IRREF = −900 µA.
negain4
negain3
negain2
negain1
negain0
CURRENT negain-DAC
00000
3.125
µA
00001
6.250
µA
00010
9.375
µA
:
code
:
100
µA (code + 1)/32
11101
93.750
µA
11110
96.900
µA
11111
100
µA
tmdac
DESCRIPTION
0
DAC test off
1
DAC test on
tlnlim1
tlnlim0
DESCRIPTION
0
0
clamp off
X
1
clamp on 1 (0.6 V; Tamb =25°C)
1
0
clamp on 2 (1.2 V; Tamb =25°C)
sumref4
sumref3
sumref2
sumref1
sumref0
CURRENT sumref-DAC
00000
0.468
µA
00001
0.937
µA
00010
1.40
µA
:
code
:
15
µA (code + 1)/32
11101
14.06
µA
11110
14.53
µA
11111
15.00
µA


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